| 2de0572caec55e3779857cae0bbcd962af2e495d |
|
10-Sep-2012 |
Dmitri Gribenko <gribozavr@gmail.com> |
Remove redundant semicolons which are null statements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163547 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 77e300e8f0b8db8eec448cae9c87d7c5bfad9757 |
|
06-Sep-2012 |
Manman Ren <mren@apple.com> |
Release build: guard dump functions with "ifndef NDEBUG"
No functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163339 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e617ccb80da76821379bbff4a2fdcd09e8401e8b |
|
06-Sep-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Handle overlapping regunit intervals in LiveIntervals::addKillFlags().
We will soon allow virtual register live ranges to overlap regunit live
ranges when the physreg is defined as a copy of the virtreg:
%EAX = COPY %vreg5
FOO %vreg5
BAR %EAX<kill>
There is no real interference since %vreg5 and %EAX have the same value
where they overlap.
This patch prevents addKillFlags from adding virtreg kill flags to FOO
where the assigned physreg is overlapping the virtual register live
range.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163335 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 7b23d0838551ee16cbd49692df1eb0598b8a48f2 |
|
03-Sep-2012 |
Lang Hames <lhames@gmail.com> |
When updating live range endpoints, make sure to preserve the early clobber bit.
Fixs PR13719.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163107 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 986d76d7b3844b9a2f3d01a48975952749267a93 |
|
22-Aug-2012 |
David Blaikie <dblaikie@gmail.com> |
Tidy up a few more uses of MF.getFunction()->getName().
Based on CR feedback from r162301 and Craig Topper's refactoring in r162347
here are a few other places that could use the same API (& in one instance drop
a Function.h dependency).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162367 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| dcc4436cddc9b5d155040ed3ed38e9070ec4e3b8 |
|
04-Aug-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Add an experimental -early-live-intervals option.
This option runs LiveIntervals before TwoAddressInstructionPass which
will eventually learn to exploit and update the analysis.
Eventually, LiveIntervals will run before PHIElimination, and we can get
rid of LiveVariables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161270 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| b2beac2b9671f7d9773329d62c2821c8ac449ac5 |
|
03-Aug-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Completely eliminate VNInfo flags.
The 'unused' state of a value number can be represented as an invalid
def SlotIndex. This also exposed code that shouldn't have been looking
at unused value VNInfos.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161258 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| bf60aa9db5953dd99c561dfa9323b1e3293a5a85 |
|
03-Aug-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Eliminate the VNInfo::hasPHIKill() flag.
The only real user of the flag was removeCopyByCommutingDef(), and it
has been switched to LiveIntervals::hasPHIKill().
All the code changed by this patch was only concerned with computing and
propagating the flag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161255 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 0ab7103e06ee1da7bde5b196a68be77ab49a005d |
|
03-Aug-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Make the hasPHIKills flag a computed property.
The VNInfo::HAS_PHI_KILL is only half supported. We precompute it in
LiveIntervalAnalysis, but it isn't properly updated by live range
splitting and functions like shrinkToUses().
It is only used in one place: RegisterCoalescer::removeCopyByCommutingDef().
This patch changes that function to use a new LiveIntervals::hasPHIKill()
function that computes the flag for a given value number.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161254 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c16bf79303ad8c84c5dd3c76e143cd2145539834 |
|
27-Jul-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Also compute register mask lists under -new-live-intervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160898 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| b18d779b35909cd5b753871f8bf2ff4f6c17ace1 |
|
27-Jul-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Eliminate the IS_PHI_DEF flag and VNInfo::setIsPHIDef().
A value number is a PHI def if and only if it begins at a block
boundary. This can be derived from the def slot, a separate flag is not
necessary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160893 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 3dfa38a5bf431ec78272bb06c47d7c28616d276a |
|
27-Jul-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Add a -new-live-intervals experimental option.
This option replaces the existing live interval computation with one
based on LiveRangeCalc.cpp. The new algorithm does not depend on
LiveVariables, and it can be run at any time, before or after leaving
SSA form.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160892 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| bfd752f310078561de07850ce66213c4579a0d7e |
|
22-Jun-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Delete a boring statistic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159030 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 7fa6784296e6bc1aa4e8ec3664e58247893c21a2 |
|
22-Jun-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Store live intervals in an IndexedMap.
It is both smaller and faster than DenseMap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159029 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e024874d22c8f6acc4f54eb6183f70f6681f23ac |
|
22-Jun-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Simplify handleMove() a bit.
There is no need to check for physreg live ranges. They don't exist any
more.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159019 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 27b7669a6058235eec494ea30d0d62b7146e0eb4 |
|
22-Jun-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Stop computing physreg live ranges.
Everyone is using on-demand regunit ranges now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159018 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 241d0209a765c97c684b120527e185f17723f650 |
|
22-Jun-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Remove LiveIntervals::trackingRegUnits().
With regunit liveness permanently enabled, this function would always
return true.
Also remove now obsolete code for checking physreg interference.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159006 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c4118452bcdae305088e151719abb2a3530caede |
|
21-Jun-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Remove the -live-regunits command line option.
Register allocators depend on it being permanently enabled now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158873 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 12a7be9ba4263a283ca14e277a90cb64fe0e6f62 |
|
21-Jun-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Fix some more LiveInterval enumerations.
Deterministically enumerate the virtual registers instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158872 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 797e9a7737136a5e13d9114fe11543da471f9bdc |
|
21-Jun-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Enable register unit liveness by default.
Soon we won't need to compute live intervals for physical registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158865 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 7824152557cfe3a366963f504b2b956f853ebc3a |
|
20-Jun-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Only update regunit live ranges that have been precomputed.
Regunit live ranges are computed on demand, so when mi-sched calls
handleMove, some regunits may not have live ranges yet.
That makes updating them easier: Just skip the non-existing ranges. They
will be computed correctly from the rescheduled machine code when they
are needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158831 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 2769e9338429377f0d06fb78ec884bf69b0c7d41 |
|
20-Jun-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Delete dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158827 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| bf833f07473851c79018a1e32186e1b9c00d03c1 |
|
20-Jun-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Add regunit liveness support to LiveIntervals::handleMove().
When LiveIntervals is tracking fixed interference in regunits, make sure
to update those intervals as well. Currently guarded by -live-regunits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158766 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| fa8becb6f9e8aa2cbe3bab79e1fc4cdf2ffbb8e5 |
|
20-Jun-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
80 col.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158755 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 461e7eaa6fc52f96d01f7e1a5c357eae79e52508 |
|
06-Jun-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Remove dead debug option -disable-rematerialization.
Remat has been stable for years, and it isn't done by
LiveIntervalAnalysis any longer. (See LiveRangeEdit).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158079 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 05b46f05c3c4efd0972bf3e2e570404e7db72509 |
|
06-Jun-2012 |
Matt Beaumont-Gay <matthewbg@google.com> |
Suppress -Wunused-variable in -Asserts build
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158037 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| b77ec7d26405125fa5685370af5f17fcc9edbecd |
|
06-Jun-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Simplify LiveInterval::print().
Don't print out the register number and spill weight, making the TRI
argument unnecessary.
This allows callers to interpret the reg field. It can currently be a
virtual register, a physical register, a spill slot, or a register unit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158031 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 34c6f9803499c11ed2dc8479ec768d47370a2d3a |
|
06-Jun-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Add experimental support for register unit liveness.
Instead of computing a live interval per physreg, LiveIntervals can
compute live intervals per register unit. This makes impossible the
confusing situation where aliasing registers could have overlapping live
intervals. It should also make fixed interferernce checking cheaper
since registers have fewer register units than aliases.
Live intervals for regunits are computed on demand, using MRI use-def
chains and the new LiveRangeCalc class. Only regunits live in to ABI
blocks are precomputed during LiveIntervals::runOnMachineFunction().
The regunit liveness computations don't depend on LiveVariables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158029 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| afb32f7fb482d62532d575ea7b1ee8ab3919575c |
|
05-Jun-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Remove the last remat-related code from LiveIntervalAnalysis.
Rematerialization is handled by LiveRangeEdit now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157974 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 84423c8778ed22877c123fe41f5e137cb5a30e90 |
|
05-Jun-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Delete dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157963 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 15f1d8c557c217b90a82599d5f0f849f8340a1e3 |
|
05-Jun-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Switch LiveIntervals member variable to LLVM naming standards.
No functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157957 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f905f69668e5dd184c0a2b5fae38d9f3721c0d3b |
|
29-May-2012 |
Lang Hames <lhames@gmail.com> |
Clear the entering, exiting and internal ranges of a bundle before collecting
ranges for the instruction about to be bundled. This fixes a bug in an external
project where an assertion was triggered due to spurious 'multiple defs' within
the bundle.
Patch by Ivan Llopard. Thanks Ivan!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157632 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 97769fcdd1b50972222673a0effc6f793848bf06 |
|
20-May-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
LiveRangeQuery simplifies shrinkToUses().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157145 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 722b6f18536a1b23a03bfb55440f098da0a7762d |
|
18-Apr-2012 |
Pete Cooper <peter_cooper@apple.com> |
LiveIntervalUpdate validators weren't recorded after the calls to std::for_each. Turns out std::for_each doesn't update the variable passed in for the functor but instead copy constructs a new one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155041 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f70af52a8fc735a84aa8d63b84dd56abd0b9e77c |
|
21-Mar-2012 |
Andrew Trick <atrick@apple.com> |
misched: fix LiveInterval update for bottom-up scheduling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153162 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e0b51ab8d3484b5b526a942f26c4db8082fed1e1 |
|
21-Mar-2012 |
Andrew Trick <atrick@apple.com> |
misched: fix LI update for bottom-up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153158 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 92b7df07afc90ea5ecc1d9c4ede80a3a3468c577 |
|
04-Mar-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Stop fixing bad machine code in LiveIntervalAnalysis.
The first def of a virtual register cannot also read the register.
Assert on such bad machine code instead of trying to fix it.
TwoAddressInstructionPass should never create code like that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152010 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 741981adf3a2bc0c6652c9c4ec846250950f3e68 |
|
01-Mar-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Move getBundleStart() into MachineInstrBundle.h.
This allows the function to be inlined, and makes it suitable for use in
getInstructionIndex().
Also provide a const version. C++ is great for touch typing practice.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151782 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 4586d257abf13b57d115d6bac9fb38ddc811acaf |
|
21-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Add API "handleMoveIntoBundl" for updating liveness when moving instructions into
bundles. This method takes a bundle start and an MI being bundled, and makes
the intervals for the MI's operands appear to start/end on the bundle start.
Also fixes some minor cosmetic issues (whitespace, naming convention) in the
HMEditor code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151099 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| fd6d3217d3b577e704ff4826775b5938c23b9e73 |
|
21-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Fix some bugs in HMEditor's moveAllOperandsInto logic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151006 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 7db76e7ca39905bbe3cb79158af0a93ca66faff8 |
|
19-Feb-2012 |
Benjamin Kramer <benny.kra@googlemail.com> |
Silence operator precedence warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150921 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6aceab139205255ac44182f51819b9b8716cf477 |
|
19-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Add machinery for pushing live ranges onto bundle starts while bundling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150915 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 4a0b2d658ae9e296598f8c8ac36c7fe571a7eec5 |
|
19-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Simplify moveEnteringDownFrom rules.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150914 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 038d2d5cede26b1ab63a732348b60ffc430dd7b0 |
|
19-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Skip through instructions rather than operands when looking for last use slot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150912 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ac027144e8e22563c9bb057598c710aac57c072f |
|
19-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Fix TODO and trailing whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150910 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 55fed62c9eca0c8ebcaa6cc2fd65a173d37b3951 |
|
19-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Defer sanity checks on live intervals until after all have been updated. Hold (LiveInterval, LiveRange) pairs to update, rather than vregs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150909 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ecb50624d1e99596fdb289200cd1473cec84e097 |
|
18-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Bring HMEditor into line with LLVM coding standards.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150851 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 0310038d5a4fe71c62f78470907c61188c613fa3 |
|
17-Feb-2012 |
Matt Beaumont-Gay <matthewbg@google.com> |
Sink variable into assert
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150841 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| fbc8dd306aa7699a866db278db08d842762b2dc2 |
|
17-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Add support for regmask slots to HMEditor. Also fixes a comment error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150840 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 3dc7c5138d219048d69952bead22f75efb984fa3 |
|
17-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Refactor 'handleMove' code in live intervals. Clients of LiveIntervals won't see
any changes.
Internally this adds a private inner class HMEditor, to LiveIntervals. HMEditor provides
an API for updating live intervals when code is moved or bundled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150826 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 5d0827582ff5b22d92af7a24d61584c73d0bb8fa |
|
17-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Oops - isRegLiveIntoSuccessor is used in non-assert builds now. Remove NDEBUG guards.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150771 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| af8b34dae90fd6d146a3b4a83b50751ed21f07c8 |
|
17-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Turn off assertion, conservatively compute liveness for live-in un-allocatable registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150768 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| cc2037be2cf0159e9f7a917a4db434258fe6eb6b |
|
16-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Make LiveIntervals::handleMove() bundle aware.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150630 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| cc72913268ccf5e0fb2785496a1dee764ecce5ff |
|
15-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Fix assertion condition.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150627 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 862fd5f77a1657380242cdcb9b0a7f9225dae426 |
|
15-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Remove overly conservative assert.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150608 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f58e37f957191a3e41f605628c6169fbb1d4f922 |
|
15-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Don't emit live ranges for physregs live-ins that are dead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150553 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| da7984fbbac967ddbe5de4e789f8f37c673a7d75 |
|
15-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Disentangle moving a machine instr from updating LiveIntervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150552 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6b7913893bcd47f52eff71e39e50c42511c4ed36 |
|
15-Feb-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Use the proper clobber check in handleLiveInRegister().
When a physreg is live in to a basic block, look for any instruction in
the block that clobbers the physreg.
The instruction doesn't have to properly redefine the register, any
overlapping clobber is OK.
This slightly changes live ranges when compiling with register masks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150528 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f658af5484855b37c6c651e9e5e671982d39af26 |
|
15-Feb-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Dump live intervals in numerical order.
The old DenseMap hashed order was very confusing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150527 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 94b6e1418202e9f6cf54856d5ec2891c9012777a |
|
15-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Don't create a new copy of reserved regs - we already have one handy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150525 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 342c64c90418a97ec26303c27d1829edd994d9a9 |
|
14-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Tighten physical register invariants: Allocatable physical registers can
only be live in to a block if it is the function entry point or a landing pad.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150494 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| cd339b71ff23327f2ef6a4c964ff3ceea20733bf |
|
14-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Use convenience function for consistency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150457 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d35576b3c026cb323c4c240f0b20cf56089a1e5b |
|
13-Feb-2012 |
Andrew Trick <atrick@apple.com> |
LiveIntervalAnalysis does not depend on MachineLoopInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150411 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 8dd26253f54247e77e5accfdd70e7b4bf27b39c2 |
|
10-Feb-2012 |
Andrew Trick <atrick@apple.com> |
RegAlloc superpass: includes phi elimination, coalescing, and scheduling.
Creates a configurable regalloc pipeline.
Ensure specific llc options do what they say and nothing more: -reglloc=... has no effect other than selecting the allocator pass itself. This patch introduces a new umbrella flag, "-optimize-regalloc", to enable/disable the optimizing regalloc "superpass". This allows for example testing coalscing and scheduling under -O0 or vice-versa.
When a CodeGen pass requires the MachineFunction to have a particular property, we need to explicitly define that property so it can be directly queried rather than naming a specific Pass. For example, to check for SSA, use MRI->isSSA, not addRequired<PHIElimination>.
CodeGen transformation passes are never "required" as an analysis
ProcessImplicitDefs does not require LiveVariables.
We have a plan to massively simplify some of the early passes within the regalloc superpass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150226 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 4465b6f6b2ebd061f4f321e666b47d540651f686 |
|
10-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Remove unused 'isAlias' parameter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150224 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 9f10ac63a3a2a74ac381a05d8ba0f7b1b455a6b6 |
|
10-Feb-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Constrain the regmask search space for local live ranges.
When checking a local live range for interference, restrict the binary
search to the single block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150220 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 34e85d0307e3c17e5061622dccf8a20e5457b099 |
|
10-Feb-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Cache basic block boundaries for faster RegMaskSlots access.
Provide API to get a list of register mask slots and bits in a basic
block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150219 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ebf2750a70df4261d3e66144ea6bcb49d41f6efb |
|
10-Feb-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Optimize LiveIntervals::intervalIsInOneMBB().
No looping and binary searches necessary.
Return a pointer to the containing block instead of just a bool.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150218 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| fb08b90bf402bcd08a3474772d505294d9d7aa79 |
|
09-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Fix kill flags when moving instructions using LiveIntervals::moveInstr(...).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150150 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 394d71271164b9268291a2f8be1190fd4138bb77 |
|
09-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Remove assertion. Not all use operands are reads.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150149 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 3fd3a840c50fe4ede1b200be18990bc955c536fd |
|
08-Feb-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Keep track of register masks in LiveIntervalAnalysis.
Build an ordered vector of register mask operands (i.e., calls) when
computing live intervals. Provide a checkRegMaskInterference() function
that computes a bit mask of usable registers for a live range.
This is a quick way of determining of a live range crosses any calls,
and restricting it to the callee saved registers if it does.
Previously, we had to discover call clobbers for each candidate register
independently.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150077 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 99a7a13f4aa5bf8f272c95f7b09ba997d2b30a35 |
|
08-Feb-2012 |
Andrew Trick <atrick@apple.com> |
Added MachineInstr::isBundled() to check if an instruction is part of a bundle.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150044 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 0aad7d274d6dfb0de1ebc00600cecf5e229b7c43 |
|
04-Feb-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Drop the REDEF_BY_EC VNInfo flag.
A live range that has an early clobber tied redef now looks like a
normal tied redef, except the early clobber def uses the early clobber
slot.
This is enough to handle any strange interference problems.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149769 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 7e899cbb9127c02c58f6e774186a533b0d00681d |
|
04-Feb-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Correctly terminate a physreg redefined by an early clobber.
I don't have a test that fails because of this, but a test case like
CodeGen/X86/2009-12-01-EarlyClobberBug.ll exposes the problem. EAX is
redefined by a tied early clobber operand on inline asm, and the live
range should look like this:
%EAX,inf = [48r,64e:0)[64e,80r:1) 0@48r 1@64e
Previously, the two values got merged:
%EAX,inf = [48r,80r:0) 0@48r
With this bug fixed, the REDEF_BY_EC VNInfo flag is no longer needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149768 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 3b1088a2cc15a39c7a7b8dd95a56143f1dda6863 |
|
04-Feb-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Don't store COPY pointers in VNInfo.
If a value is defined by a COPY, that instuction can easily and cheaply
be found by getInstructionFromIndex(VNI->def).
This reduces the size of VNInfo from 24 to 16 bytes, and improves
llc compile time by 3%.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149763 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 9119b039d46e95ed95d9a20f9f7ee52e414ca16d |
|
04-Feb-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Trim headers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149722 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d491da3f93a51d811b42f59f375e0b1883b06832 |
|
03-Feb-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Delete some dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149717 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| baffe7a6f3c3f9588048db37a59b9b2f52ffe248 |
|
30-Jan-2012 |
Matt Beaumont-Gay <matthewbg@google.com> |
Here's a new one: GCC was complaining about an only-used-in-asserts
*function*. Wrap the function in #ifndef NDEBUG.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149259 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 3f8d3c7d72367244e56efd9ce2c64ef5905cb377 |
|
28-Jan-2012 |
Lang Hames <lhames@gmail.com> |
Silence warning about parens for && within ||
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149152 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 907cc8f38df212a87a6028682d91df01ba923f4f |
|
27-Jan-2012 |
Lang Hames <lhames@gmail.com> |
Add a "moveInstr" method to LiveIntervals. This can be used to move instructions
around within a basic block while maintaining live-intervals.
Updated ScheduleTopDownLive in MachineScheduler.cpp to use the moveInstr API
when reordering MIs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149147 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 58a3685916e2badd7fdec557641b056c1540c0c3 |
|
25-Jan-2012 |
Lang Hames <lhames@gmail.com> |
Don't add live ranges for aliases of physregs that are live in to the
function. They don't appear to be used, and are inconsistent with handling of
other physreg intervals (i.e. intervals that are not live-in) where ranges are
not inserted for aliases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148986 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6c76e80753cfc83dc6804fcd5d949c517dfe3434 |
|
25-Jan-2012 |
Lang Hames <lhames@gmail.com> |
Always break upon finding a vreg operand (in Release as well as +Asserts). Remove assertion which can no longer trigger.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148984 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| bfab85e9b187f8e59c7638c15347319799097ae1 |
|
18-Jan-2012 |
Lang Hames <lhames@gmail.com> |
Fixed macro condition.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148408 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 74c4f97a466513e45e66e04469973fdcd5865300 |
|
11-Jan-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Exclusively use SplitAnalysis::getLastSplitPoint().
Delete the alternative implementation in LiveIntervalAnalysis.
These functions computed the same thing, but SplitAnalysis caches the
result.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147911 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 4281e20aab7f1fe1b35b31c9237ad89c20937e02 |
|
07-Jan-2012 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Use the 'regalloc' debug tag for most register allocator tracing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147725 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 567cdbab28077ea1801ebff3d4291d4006d88ca3 |
|
03-Jan-2012 |
Lang Hames <lhames@gmail.com> |
Clarified assert text.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147471 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 5a96b3dad2f634c9081c8b2b6c2575441dc5a2bd |
|
07-Dec-2011 |
Evan Cheng <evan.cheng@apple.com> |
Add bundle aware API for querying instruction properties and switch the code
generator to it. For non-bundle instructions, these behave exactly the same
as the MC layer API.
For properties like mayLoad / mayStore, look into the bundle and if any of the
bundled instructions has the property it would return true.
For properties like isPredicable, only return true if *all* of the bundled
instructions have the property.
For properties like canFoldAsLoad, isCompare, conservatively return false for
bundles.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146026 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f054e198197122011fc80b673f35333bc3e58c98 |
|
14-Nov-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Fix early-clobber handling in shrinkToUses.
I broke this in r144515, it affected most ARM testers.
<rdar://problem/10441389>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144547 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6c9cc21d85cdef79b971f710ace287f3a2f847a3 |
|
14-Nov-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Use kill slots instead of the previous slot in shrinkToUses.
It's more natural to use the actual end points.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144515 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 1f81e316b042c02c841801a71e7439e166ffa2a0 |
|
13-Nov-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Terminate all dead defs at the dead slot instead of the 'next' slot.
This makes no difference for normal defs, but early clobber dead defs
now look like:
[Slot_EarlyClobber; Slot_Dead)
instead of:
[Slot_EarlyClobber; Slot_Register).
Live ranges for normal dead defs look like:
[Slot_Register; Slot_Dead)
as before.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144512 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d14614e6777771f8fec3062bcaf2986c189ac84d |
|
13-Nov-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Simplify early clobber slots a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144507 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 2debd48ca790ac01be6e12e094fdf4fdcadc8364 |
|
13-Nov-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Rename SlotIndexes to match how they are used.
The old naming scheme (load/use/def/store) can be traced back to an old
linear scan article, but the names don't match how slots are actually
used.
The load and store slots are not needed after the deferred spill code
insertion framework was deleted.
The use and def slots don't make any sense because we are using
half-open intervals as is customary in C code, but the names suggest
closed intervals. In reality, these slots were used to distinguish
early-clobber defs from normal defs.
The new naming scheme also has 4 slots, but the names match how the
slots are really used. This is a purely mechanical renaming, but some
of the code makes a lot more sense now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144503 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f5eeaf221c0b8acdc1ffbd5cefe01b61474cb7e8 |
|
13-Nov-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Delete the old spilling framework from LiveIntervalAnalysis.
This is dead code, all register allocators use InlineSpiller.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144478 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| b0e1bc7b99809e2b45726affd73f72c60c506ea0 |
|
05-Oct-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Add a FIXME.
TwoAddressInstructionPass should annotate instructions with <undef>
flags when it lower REG_SEQUENCE instructions. LiveIntervals should not
be in the business of modifying code (except for kill flags, perhaps).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141187 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 7016cf66ee21ddf3f7823d4e332b2cb84953bebd |
|
04-Oct-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Allow <undef> flags on def operands as well as uses.
The <undef> flag says that a MachineOperand doesn't read its register,
or doesn't depend on the previous value of its register.
A full register def never depends on the previous register value. A
partial register def may depend on the previous value if it is intended
to update part of a register.
For example:
%vreg10:dsub_0<def,undef> = COPY %vreg1
%vreg10:dsub_1<def> = COPY %vreg2
The first copy instruction defines the full %vreg10 register with the
bits not covered by dsub_0 defined as <undef>. It is not considered a
read of %vreg10.
The second copy modifies part of %vreg10 while preserving the rest. It
has an implicit read of %vreg10.
This patch adds a MachineOperand::readsReg() method to determine if an
operand reads its register.
Previously, this was modelled by adding a full-register <imp-def>
operand to the instruction. This approach makes it possible to
determine directly from a MachineOperand if it reads its register. No
scanning of MI operands is required.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141124 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 031432f9ad24963282b7f71bd0592080f6229d20 |
|
15-Sep-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Speed up LiveIntervals::shrinkToUse with some caching.
Blocks with multiple PHI successors only need to go on the worklist
once. Use a SmallPtrSet to track the live-out blocks that have already
been handled. This is a lot faster than the two live range check we
would otherwise do.
Also stop recomputing hasPHIKill flags. Like RenumberValues(), it is
conservatively correct to leave them in, and they are not used for
anything important.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139792 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ee5655dca467d3812145a2f965c31edf4875c93e |
|
13-Sep-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Switch extendInBlock() to take a kill slot instead of the last use slot.
Three out of four clients prefer this interface which is consistent with
extendIntervalEndTo() and LiveRangeCalc::extend().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139604 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ec7e4fff960f166be8a8a39b7ba8cc7baac6b02c |
|
30-Apr-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
When a physreg is live-in and live through a basic block, make sure its live
range covers the entire block.
The live range can't be terminated at a random instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130619 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 7a2bdde0a0eebcd2125055e0eacaca040f0b766c |
|
15-Apr-2011 |
Chris Lattner <sabre@nondot.org> |
Fix a ton of comment typos found by codespell. Patch by
Luis Felipe Strano Moraes!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129558 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 0fb215a154a5f9f54eea1ce8b006ba9bce5defa1 |
|
11-Apr-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Don't add live ranges for sub-registers when clobbering a physical register.
Both coalescing and register allocation already check aliases for interference,
so these extra segments are only slowing us down.
This speeds up both linear scan and the greedy register allocator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129283 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e815dab69f57da3f0ff365709491c7409cbb71bd |
|
07-Apr-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Recompute hasPHIKill flags when shrinking live intervals.
PHI values may be deleted, causing the flags to be wrong. This fixes PR9616.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129092 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 4662a9f270fe2c916c35545718720ed181384c30 |
|
04-Apr-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Allow coalescing with reserved physregs in certain cases:
When a virtual register has a single value that is defined as a copy of a
reserved register, permit that copy to be joined. These virtual register are
usually copies of the stack pointer:
%vreg75<def> = COPY %ESP; GR32:%vreg75
MOV32mr %vreg75, 1, %noreg, 0, %noreg, %vreg74<kill>
MOV32mi %vreg75, 1, %noreg, 8, %noreg, 0
MOV32mi %vreg75<kill>, 1, %noreg, 4, %noreg, 0
CALLpcrel32 ...
Coalescing these virtual registers early decreases register pressure.
Previously, they were coalesced by RALinScan::attemptTrivialCoalescing after
register allocation was completed.
The lower register pressure causes the mcinst-lowering-cmp0.ll test case to fail
because it depends on linear scan spilling a particular register.
I am deleting 2008-08-05-SpillerBug.ll because it is counting the number of
instructions emitted, and its revision history shows the 'correct' count being
edited many times.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128845 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| dc5198bac7e3f9b61617c8c46a1c28a84daa9325 |
|
31-Mar-2011 |
NAKAMURA Takumi <geek4civic@gmail.com> |
lib/CodeGen/LiveIntervalAnalysis.cpp: [PR9590] Don't use std::pow(float,float) here.
We don't expect the real "powf()" on some hosts (and powf() would be available on other hosts).
For consistency, std::pow(double,double) may be called instead.
Or, precision issue might attack us, to see unstable regalloc and stack coloring.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128629 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 9ef931e71c06a0390d6387859843be1d6d4daad6 |
|
18-Mar-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Accept instructions that read undefined values.
This is not supposed to happen, but I have seen the x86 rematter getting
confused when rematerializing partial redefs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127857 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6a3dbd3b25bbc99bd1a233d6a74ddea3493ba6ac |
|
17-Mar-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Dead code elimination may separate the live interval into multiple connected components.
I have convinced myself that it can only happen when a phi value dies. When it
happens, allocate new virtual registers for the components.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127827 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c46570dc05851395829bef904bb6ddb1260400d1 |
|
16-Mar-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Clarify debugging output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127771 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 38f6bd0fc8095ef79a89b3db15ff6dc734ac90e7 |
|
10-Mar-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Make SpillIs an optional pointer. Avoid creating a bunch of temporary SmallVectors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127388 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 0d8ccaa5c8db820b5b93f37e51563148c57ba6b8 |
|
08-Mar-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Let shrinkToUses optionally return a list of now dead machine instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127192 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| a9d5c2715b5e8e0be613d8d31e76c35a5bfff07d |
|
07-Mar-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Handle the special case of registers begin redefined by early-clobber defs.
In this case, the value need to be available at the load index instead of the
normal use index.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127167 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c29d9b3495a2d87af524ad5c4b62f46c4265d828 |
|
03-Mar-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Fix PHI handling in LiveIntervals::shrinkToUses().
We need to wait until we meet a PHIDef in its defining block before resurrecting
PHIKills in the predecessors.
This should unbreak the llvm-gcc-build-x86_64-darwin10-x-mingw32-x-armeabi bot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126905 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 4b11a70f7a63dc4c051a96a90ed6687eb0595cda |
|
02-Mar-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Quiet a compiler warning about unused variable 'ExtVNI'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126815 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e0ab24532cc11f082d722ab169080322b39afece |
|
02-Mar-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Simplify LiveIntervals::shrinkToUses() a bit by using the new extendInBlock().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126806 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| a4d347357ce04d9101130dca0df33cb62ea35a2f |
|
02-Mar-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Fix typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126805 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| eb9f040f0d07e2fa9b3b5ef46d5ee32511d28811 |
|
15-Feb-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Move more fragments of spill weight calculation into CalcSpillWeights.h
Simplify the spill weight calculation a bit by bypassing
getApproximateInstructionCount() and using LiveInterval::getSize() directly.
This changes the computed spill weights, but only by a constant factor in each
function. It should not affect how spill weights compare against each other, and
so it shouldn't affect code generation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125530 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f0ac26c51173a9a1d6e5b5794107dccc4c5b5792 |
|
09-Feb-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Move calcLiveBlockInfo() and the BlockInfo struct into SplitAnalysis.
No functional changes intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125231 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 8a61da8a689ee95874c833af4c7aa965fab5c0a9 |
|
08-Feb-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Add LiveIntervals::addKillFlags() to recompute kill flags after register allocation.
This is a lot easier than trying to get kill flags right during live range
splitting and rematerialization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125113 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 11513e5d1e1b40e6113668e4b4357596f33fa6c6 |
|
08-Feb-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Add LiveIntervals::shrinkToUses().
After uses of a live range are removed, recompute the live range to only cover
the remaining uses. This is necessary after rematerializing the value before
some (but not all) uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125058 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 45e53975f81164d6e5e6322e83dd19030b7d3c88 |
|
05-Feb-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Apparently, it is possible for a block with a landing pad successor to have no calls.
In that case we simply ignore the landing pad and split live ranges before the
first terminator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124907 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| cb6404711b7fe6f583480adce8d7e9d5e4b99ae6 |
|
04-Feb-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Add LiveIntervals::getLastSplitPoint().
A live range cannot be split everywhere in a basic block. A split must go before
the first terminator, and if the variable is live into a landing pad, the split
must happen before the call that can throw.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124894 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c9df025e33ac435adb3b3318d237c36ca7cec659 |
|
10-Jan-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Simplify a bunch of isVirtualRegister() and isPhysicalRegister() logic.
These functions not longer assert when passed 0, but simply return false instead.
No functional change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123155 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 4314268128be6d54c9a7f0709680e5a5b40f3ab3 |
|
09-Jan-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Replace TargetRegisterInfo::printReg with a PrintReg class that also works without a TRI instance.
Print virtual registers numbered from 0 instead of the arbitrary
FirstVirtualRegister. The first virtual register is printed as %vreg0.
TRI::NoRegister is printed as %noreg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123107 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f4840c07f84d018c4de5dbdad4166b9e162f8f89 |
|
16-Nov-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Fix emergency spilling in LiveIntervals::spillPhysRegAroundRegDefsUses.
Always spill the full representative register at any point where any subregister
is live.
This fixes PR8620 which caused the old logic to get confused and not spill
anything at all.
The fundamental problem here is that the coalescer is too aggressive about
physical register coalescing. It sometimes makes it impossible to allocate
registers without these emergency spills.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119375 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 7c2e4a8715836a44e82ac6c7370826519ccdfddb |
|
16-Nov-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Fix PR8612 in the standard spiller, take two.
The live range of a register defined by an early clobber starts at the use slot,
not the def slot.
Except when it is an early clobber tied to a use operand. Then it starts at the
def slot like a standard def.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119305 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| bea0b6a0495c8c80ad7d52d4bc28acdee926020b |
|
15-Nov-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Revert "Fix PR8612 in the standard spiller as well."
This reverts r119183 which borke the buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119270 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| a284aa1657d08390209b87f57782936e45d562ba |
|
15-Nov-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Fix PR8612 in the standard spiller as well.
The live range of a register defined by an early clobber starts at the use slot,
not the def slot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119183 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f4baeaf8485f01beda46d29fd55753199dc68070 |
|
10-Nov-2010 |
Andrew Trick <atrick@apple.com> |
RABasic is nearly functionally complete. There are a few remaining
benchmarks hitting an assertion.
Adds LiveIntervalUnion::collectInterferingVRegs.
Fixes "late spilling" by checking for any unspillable live vregs among
all physReg aliases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118701 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f4a1e1a69f0727762a73ef0d551e3bbd16b7c04e |
|
26-Oct-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Teach MachineBasicBlock::print() to annotate instructions and blocks with
SlotIndexes when available.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117392 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 2ab36d350293c77fc8941ce1023e4899df7e3a82 |
|
12-Oct-2010 |
Owen Anderson <resistor@mac.com> |
Begin adding static dependence information to passes, which will allow us to
perform initialization without static constructors AND without explicit initialization
by the client. For the moment, passes are required to initialize both their
(potential) dependencies and any passes they preserve. I hope to be able to relax
the latter requirement in the future.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116334 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 31cc3ec3308c8fafd9865388214ae11662a71af4 |
|
11-Oct-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Replace FindLiveRangeContaining() with getVNInfoAt() in LiveIntervalAnalysis.
This helps hiding the LiveRange class which really should be private.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116244 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ce665bd2e2b581ab0858d1afe359192bac96b868 |
|
08-Oct-2010 |
Owen Anderson <resistor@mac.com> |
Now with fewer extraneous semicolons!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115996 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6e2968c85c1e162ee5bc813769eab223e3df0f15 |
|
25-Sep-2010 |
Lang Hames <lhames@gmail.com> |
Removed VNInfo::isDefAccurate(). Def "accuracy" can be checked by testing whether LiveIntervals::getInstructionFromIndex(def) returns NULL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114791 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 011e5910719265ba5d41e8af2290e55c5eb50526 |
|
25-Sep-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Remove SlotIndex::PHI_BIT. It is no longer used by anything.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114779 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 148341cc9b60d7d88be9c07a2b32b436e0cd301d |
|
17-Aug-2010 |
Evan Cheng <evan.cheng@apple.com> |
PHI elimination shouldn't require machineloopinfo since it's used at -O0. Move the requirement to LiveIntervalAnalysis instead. Note this does not change the number of times machineloopinfo is computed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111285 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 1b2932024f098a6968645ac78d5848951d877c19 |
|
12-Aug-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Remove trailing whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110944 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| bae696956b74680a7fedafb7fea70628d1ef14df |
|
03-Aug-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Oops. Don't normalize spill weights twice.
When the normalizeSpillWeights function was introduced, I forgot to remove this
normalization.
This change could affect register allocation. Hopefully for the better.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110119 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d13db2c59cc94162d6cf0a04187d408bfef6d4a7 |
|
22-Jul-2010 |
Owen Anderson <resistor@mac.com> |
Fix batch of converting RegisterPass<> to INTIALIZE_PASS().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109045 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 04c528a0c86ddf3d6a70681f72e1b2ec07b0b53a |
|
16-Jul-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Remove many calls to TII::isMoveInstr. Targets should be producing COPY anyway.
TII::isMoveInstr is going tobe completely removed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108507 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 8ea324093cd512acc37f7b5a60e511e64103699e |
|
09-Jul-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Fix small bug in isMoveInstr -> COPY translation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108013 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e05442d50806e2850eae1571958816028093df85 |
|
09-Jul-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Change TII::foldMemoryOperand API to require the machine instruction to be
inserted in a MBB, and return an already inserted MI.
This target API change is necessary to allow foldMemoryOperand to call
storeToStackSlot and loadFromStackSlot when folding a COPY to a stack slot
reference in a target independent way.
The foldMemoryOperandImpl hook is going to change in the same way, but I'll wait
until COPY folding is actually implemented. Most targets only fold copies and
won't need to specialize this hook at all.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107991 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 0bc25f40402f48ba42fc45403f635b20d90fabb3 |
|
08-Jul-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Convert EXTRACT_SUBREG to COPY when emitting machine instrs.
EXTRACT_SUBREG no longer appears as a machine instruction. Use COPY instead.
Add isCopy() checks in many places using isMoveInstr() and isExtractSubreg().
The isMoveInstr hook will be removed later.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107879 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 5c00e077952d14899c3fc26709c7b2dfd36d0209 |
|
08-Jul-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Remove references to INSERT_SUBREG after de-SSA.
Fix X86InstrInfo::convertToThreeAddressWithLEA to generate COPY instead of
INSERT_SUBREG.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107878 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 4b76ffc1ffca2ed016467e916d5223515b485592 |
|
07-Jul-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Revert "Remove references to INSERT_SUBREG after de-SSA" r107725.
Buildbot breakage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107744 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d3b376b4483d816367dd28a41bcbccede1cdcbf0 |
|
07-Jul-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Remove references to INSERT_SUBREG after de-SSA
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107732 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ed2185e171a86b8c0e166803fd4066383a6cff08 |
|
07-Jul-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Convert INSERT_SUBREG to COPY in TwoAddressInstructionPass.
INSERT_SUBREG will now only appear in SSA machine instructions.
Fix the handling of partial redefs in ProcessImplicitDefs. This is now relevant
since partial redef COPY instructions appear.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107726 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 273f7e42994a5bce0614d04d96dbfdf05fd652e5 |
|
03-Jul-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Detect and handle COPY in many places.
This code is transitional, it will soon be possible to eliminate
isExtractSubreg, isInsertSubreg, and isMoveInstr in most places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107547 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ce9a20b808ba48adf72e0c0615f903a65e9f9eb8 |
|
26-Jun-2010 |
Benjamin Kramer <benny.kra@googlemail.com> |
VNInfos don't need to be destructed anymore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106943 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 15a571436da812c7cecbc3f3423ead2edff50358 |
|
26-Jun-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Don't track kills in VNInfo. Use interval ends instead.
The VNInfo.kills vector was almost unused except for all the code keeping it
updated. The few places using it were easily rewritten to check for interval
ends instead.
The two new methods LiveInterval::killedAt and killedInRange are replacements.
This brings us down to 3 independent data structures tracking kills.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106905 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 3c7b3fecacee40df7b9a99d290638398b5a62173 |
|
24-Jun-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Remove the now unused LiveIntervals::getVNInfoSourceReg().
This method was always a bit too simplistic for the real world. It didn't really
deal with subregisters and such.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106781 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 54edf4f7da971cbb0c1546039db488a259480398 |
|
24-Jun-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Remove the -fast-spill option.
This code path has never really been used, and we are going to be handling
spilling through the Spiller interface in the future.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106777 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| a24986d8bfd941252f7d080943e02bbe6a0c2944 |
|
24-Jun-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Replace a big gob of old coalescer logic with the new CoalescerPair class.
CoalescerPair can determine if a copy can be coalesced, and which register gets
merged away. The old logic in SimpleRegisterCoalescing had evolved into
something a bit too convoluted.
This second attempt fixes some crashes that only occurred Linux.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106769 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| af5c60b40d50af635e1d02c0c3db508cfb9f2d1f |
|
24-Jun-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Verify that VNI kills are pointing to existing instructions.
In this case it is essential that the kill is real because the spiller will
decide to omit a spill if it thinks there is a later kill.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106751 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| b8ac3b035ba14663ebe57fde17f6a9f25134e005 |
|
24-Jun-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Revert "Replace a big gob of old coalescer logic with the new CoalescerPair class."
Whiny buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106710 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e9c59711d3d1e8b133763393bea92af6e36b0031 |
|
24-Jun-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Replace a big gob of old coalescer logic with the new CoalescerPair class.
CoalescerPair can determine if a copy can be coalesced, and which register gets
merged away. The old logic in SimpleRegisterCoalescing had evolved into
something a bit too convoluted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106701 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 0465bcffbbffb5ff5f420787b4350cb8abb196f7 |
|
19-Jun-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
TwoAddressInstructionPass::CoalesceExtSubRegs can insert INSERT_SUBREG
instructions, but it doesn't really understand live ranges, so the first
INSERT_SUBREG uses an implicitly defined register.
Fix it in LiveVariableAnalysis by adding the <undef> flag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106333 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c66d0f2a9386cc7cb3237b8e3cace2b62a9c7dc8 |
|
16-Jun-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Allow a register to be redefined multiple times in a basic block.
LiveVariableAnalysis was a bit picky about a register only being redefined once,
but that really isn't necessary.
Here is an example of chained INSERT_SUBREGs that we can handle now:
68 %reg1040<def> = INSERT_SUBREG %reg1040, %reg1028<kill>, 14
register: %reg1040 +[70,134:0)
76 %reg1040<def> = INSERT_SUBREG %reg1040, %reg1029<kill>, 13
register: %reg1040 replace range with [70,78:1) RESULT: %reg1040,0.000000e+00 = [70,78:1)[78,134:0) 0@78-(134) 1@70-(78)
84 %reg1040<def> = INSERT_SUBREG %reg1040, %reg1030<kill>, 12
register: %reg1040 replace range with [78,86:2) RESULT: %reg1040,0.000000e+00 = [70,78:1)[78,86:2)[86,134:0) 0@86-(134) 1@70-(78) 2@78-(86)
92 %reg1040<def> = INSERT_SUBREG %reg1040, %reg1031<kill>, 11
register: %reg1040 replace range with [86,94:3) RESULT: %reg1040,0.000000e+00 = [70,78:1)[78,86:2)[86,94:3)[94,134:0) 0@94-(134) 1@70-(78) 2@78-(86) 3@86-(94)
rdar://problem/8096390
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106152 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ead06be02fe6b9a2bf6fbe04237c1276ed0cdb5c |
|
03-Jun-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Use readsWritesVirtualRegister instead of counting uses and defs when inserting
spills and reloads.
This means that a partial define of a register causes a reload so the other
parts of the register are preserved.
The reload can be prevented by adding an <imp-def> operand for the full
register. This is already done by the coalescer and live interval analysis where
relevant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105369 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 1015ba7018c87f48cc7bb45a564eb4a27241e76a |
|
21-May-2010 |
Evan Cheng <evan.cheng@apple.com> |
- Change MachineInstr::findRegisterDefOperandIdx so it can also look for defs
that are aliases of the specified register.
- Rename modifiesRegister to definesRegister since it's looking a def of the
specific register or one of its super-registers. It's not looking for def of a
sub-register or alias that could change the specified register.
- Added modifiesRegister to look for defs of aliases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104377 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 19f5f71bba08e690611fa213647ac6bae814756b |
|
21-May-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Revert "Use MachineInstr::readsWritesVirtualRegister to determine if a register is read."
This reverts r104322. I think it was causing miscompilations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104323 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 00c53caa339f954cb3590a05e8653b864b4355cf |
|
21-May-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Use MachineInstr::readsWritesVirtualRegister to determine if a register is read.
This correctly handles partial redefines and undef uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104322 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 63e6a488cb6c29983415221719d05fbf99e00193 |
|
21-May-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
If the first definition of a virtual register is a partial redef, add an
<imp-def> operand for the full register. This ensures that the full physical
register is marked live after register allocation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104320 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 761fd4c1d97977c16de9f0cf921056a37b906304 |
|
20-May-2010 |
Nick Lewycky <nicholas@mxc.ca> |
Fix typo in comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104209 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ad6c5a20ba87e7aba91ef7e8b270715a25379770 |
|
17-May-2010 |
Evan Cheng <evan.cheng@apple.com> |
Yes, if the redef is a copy, update the old val# with the copy. But make sure to clear the copy field if the redef is not a copy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103922 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 87565c1d779a1903d10ddd11d886c0f79ee430b5 |
|
15-May-2010 |
Chris Lattner <sabre@nondot.org> |
improve portability to systems that don't have powf/modf (e.g. solaris 9)
patch by Evzen Muller!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103876 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 61d531066d540a1a05fa44048ebef4bb1614acea |
|
15-May-2010 |
Evan Cheng <evan.cheng@apple.com> |
A partial re-def instruction may be a copy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103850 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 623d3c10e12a4227926e5b69947f7f0fa7e1908a |
|
10-May-2010 |
Evan Cheng <evan.cheng@apple.com> |
Re-defined valno is always valno even for partial re-def's.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103410 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 3749943648772743c9c0e852553e50e6700a0c1b |
|
05-May-2010 |
Evan Cheng <evan.cheng@apple.com> |
Teach liveintervalanalysis about virtual registers which are defined by reg_sequence instructions that are formed by registers defined by distinct instructions. e.g.
80 %reg1041:6<def> = VSHRNv4i16 %reg1034<kill>, 12, pred:14, pred:%reg0
. . .
120 %reg1041:5<def> = VSHRNv4i16 %reg1039<kill>, 12, pred:14, pred:%reg0
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103102 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| afff40a62da19be15295c0f8ed5d4d450ccb45a5 |
|
04-May-2010 |
Evan Cheng <evan.cheng@apple.com> |
Teach PHI elimination to remove REG_SEQUENCE instructions and update references of the source operands with references of the destination with subreg indices. e.g.
%reg1029<def>, %reg1030<def> = VLD1q16 %reg1024<kill>, ...
%reg1031<def> = REG_SEQUENCE %reg1029<kill>, 5, %reg1030<kill>, 6
=>
%reg1031:5<def>, %reg1031:6<def> = VLD1q16 %reg1024<kill>, ...
PHI elimination now does more than phi elimination. It is really a de-SSA pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103039 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ad98f795d0dba3db721139a8a74a98acdce0ff60 |
|
03-May-2010 |
Bob Wilson <bob.wilson@apple.com> |
Print basic block numbers in live interval debug output. Since the rest of the
debug output is showing machine instructions, the IR-level basic block names
aren't very meaningful, and because multiple machine basic blocks may be
derived from one IR-level BB, they're also not unique.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102960 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6691a8935c9f2e049ff5eed45ba2894f60108909 |
|
29-Apr-2010 |
Evan Cheng <evan.cheng@apple.com> |
- Really preserve dbg_value instructions when the register is spilled.
- Also, update dbg_value is the value is being re-matted from a frame slot, e.g. fixed slots for arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102565 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6fa7636e614cbf0a19d374e169791a774281e8d3 |
|
26-Apr-2010 |
Evan Cheng <evan.cheng@apple.com> |
Re-enable 102323 with fix: do not update dbg_value's with incorrect frame indices when the live interval are being re-materialized.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102361 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6cd4b342617f9729101c987739507e8e2527bf0f |
|
26-Apr-2010 |
Evan Cheng <evan.cheng@apple.com> |
Temporary disable spiller modifying dbg_value. It's breaking build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102327 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 962021bc7f6721c20c7dfe8ca809e2d98b1c554a |
|
26-Apr-2010 |
Evan Cheng <evan.cheng@apple.com> |
- Move TargetLowering::EmitTargetCodeForFrameDebugValue to TargetInstrInfo and rename it to emitFrameIndexDebugValue.
- Teach spiller to modify DBG_VALUE instructions to reference spill slots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102323 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 81bf03eb5cd68243eabb52505105aa5f4a831bf3 |
|
13-Apr-2010 |
Dan Gohman <gohman@apple.com> |
Eliminate MachineBasicBlock::const_livein_iterator and make
MachineBasicBlock::livein_iterator a const_iterator, because
clients shouldn't ever be using the iterator interface to
mutate the livein set.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101147 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 75361b69f3f327842b9dad69fa7f28ae3b688412 |
|
08-Apr-2010 |
Chris Lattner <sabre@nondot.org> |
rename llvm::llvm_report_error -> llvm::report_fatal_error
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100709 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 991de14dd62dcbab4b31357ae22dc5b053ba50a0 |
|
30-Mar-2010 |
Benjamin Kramer <benny.kra@googlemail.com> |
Introduce SpecificBumpPtrAllocator, a wrapper for BumpPtrAllocator which allows
only a single type of object to be allocated. Use it to make VNInfo destruction
typesafe.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99919 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 01cb1b665da03e2b74c0724f71751e912ec8c2be |
|
30-Mar-2010 |
Torok Edwin <edwintorok@gmail.com> |
Reapply r99881 with some fixes: only call destructor in releaseMemory!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99883 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 226dd2ba992b1f00491c10c59ca1889825bf92b6 |
|
30-Mar-2010 |
Torok Edwin <edwintorok@gmail.com> |
Revert 99881, it brooke smooshlab's llvm-gcc-i386-darwin9.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99882 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 2a22004f6857c57dc483ea6180f0e1f86854bd13 |
|
30-Mar-2010 |
Torok Edwin <edwintorok@gmail.com> |
Introduce another Reset() method in BumpPtrAllocator that calls a destructor
on all objects it has allocated, if they are all of the same size and alignment.
Use this to destruct all VNInfos allocated in LiveIntervalAnalysis (PR6653).
valnos is not reliable for this purpose, as seen in r99400
(which still leaked, and sometimes caused double frees).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99881 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 28a1e486907104b85c5787345914917d74f0cf77 |
|
30-Mar-2010 |
Evan Cheng <evan.cheng@apple.com> |
Avoid being influenced by the presence of dbg_value instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99879 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d6a6b3b7563a3f54ba48d465fc03ee10bbccb7a8 |
|
24-Mar-2010 |
Bob Wilson <bob.wilson@apple.com> |
Revert Edwin's change that is breaking MultiSource/Applications/ClamAV/clamscan.
--- Reverse-merging r99400 into '.':
D test/CodeGen/Generic/2010-03-24-liveintervalleak.ll
U lib/CodeGen/LiveIntervalAnalysis.cpp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99419 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 15417383b96f9035a00bab5c13746f59e91e35e0 |
|
24-Mar-2010 |
Torok Edwin <edwintorok@gmail.com> |
Fix memory leak in liveintervals: the destructor for VNInfos must be called,
otherwise the SmallVector it contains doesn't free its memory.
In most cases LiveIntervalAnalysis could get away by not calling the destructor,
because VNInfos are bumpptr-allocated, and smallvectors usually don't grow.
However when the SmallVector does grow it always leaks.
This is the valgrind shown leak from the original testcase:
==8206== 18,304 bytes in 151 blocks are definitely lost in loss record 164 of 164
==8206== at 0x4A079C7: operator new(unsigned long) (vg_replace_malloc.c:220)
==8206== by 0x4DB7A7E: llvm::SmallVectorBase::grow_pod(unsigned long, unsigned long) (in /home/edwin/clam/git/builds/defaul
t/libclamav/.libs/libclamav.so.6.1.0)
==8206== by 0x4F90382: llvm::VNInfo::addKill(llvm::SlotIndex) (in /home/edwin/clam/git/builds/default/libclamav/.libs/libcl
amav.so.6.1.0)
==8206== by 0x5126B5C: llvm::LiveIntervals::handleVirtualRegisterDef(llvm::MachineBasicBlock*, llvm::ilist_iterator<llvm::M
achineInstr>, llvm::SlotIndex, llvm::MachineOperand&, unsigned int, llvm::LiveInterval&) (in /home/edwin/clam/git/builds/defau
lt/libclamav/.libs/libclamav.so.6.1.0)
==8206== by 0x512725E: llvm::LiveIntervals::handleRegisterDef(llvm::MachineBasicBlock*, llvm::ilist_iterator<llvm::MachineI
nstr>, llvm::SlotIndex, llvm::MachineOperand&, unsigned int) (in /home/edwin/clam/git/builds/default/libclamav/.libs/libclamav
.so.6.1.0)
==8206== by 0x51278A8: llvm::LiveIntervals::computeIntervals() (in /home/edwin/clam/git/builds/default/libclamav/.libs/libc
lamav.so.6.1.0)
==8206== by 0x5127CB4: llvm::LiveIntervals::runOnMachineFunction(llvm::MachineFunction&) (in /home/edwin/clam/git/builds/de
fault/libclamav/.libs/libclamav.so.6.1.0)
==8206== by 0x4DAE935: llvm::FPPassManager::runOnFunction(llvm::Function&) (in /home/edwin/clam/git/builds/default/libclama
v/.libs/libclamav.so.6.1.0)
==8206== by 0x4DAEB10: llvm::FunctionPassManagerImpl::run(llvm::Function&) (in /home/edwin/clam/git/builds/default/libclama
v/.libs/libclamav.so.6.1.0)
==8206== by 0x4DAED3D: llvm::FunctionPassManager::run(llvm::Function&) (in /home/edwin/clam/git/builds/default/libclamav/.l
ibs/libclamav.so.6.1.0)
==8206== by 0x4D8BE8E: llvm::JIT::runJITOnFunctionUnlocked(llvm::Function*, llvm::MutexGuard const&) (in /home/edwin/clam/git/builds/default/libclamav/.libs/libclamav.so.6.1.0)
==8206== by 0x4D8CA72: llvm::JIT::getPointerToFunction(llvm::Function*) (in /home/edwin/clam/git/builds/default/libclamav/.libs/libclamav.so.6.1.0)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99400 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 4507f089d48c5adb454cd12b68333d5590ce05dd |
|
16-Mar-2010 |
Evan Cheng <evan.cheng@apple.com> |
Fix liveintervals handling of dbg_value instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98686 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 826cbac2a0cef418fd8949813761c2ed975f3df1 |
|
11-Mar-2010 |
Evan Cheng <evan.cheng@apple.com> |
The check for coalescing a virtual register to a physical register, e.g.
cl = EXTRACT_SUBREG reg1024, 1, is overly conservative. It should check
for overlaps of vr's live interval with the super registers of the
physical register (ECX in this case) and let JoinIntervals() handle checking
the coalescing feasibility against the physical register (cl in this case).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98251 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| a2f767b1a7ed6aa4edd6dcf65b68bf3a4ed3901e |
|
10-Mar-2010 |
Dale Johannesen <dalej@apple.com> |
Fix a bug in DEBUG_VALUE handling Devang ran into.
I'll get this loop right yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98155 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e5d90416ee1a4f45eba80789a7a3cbc3d497a4cd |
|
01-Mar-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Use methods to determine if a LiveInterval is spillable.
Don't accidentally produce unspillable intervals for deeply nested loops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97496 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| dcfe5f30b5e262971f601a65bebcc0367fef56c5 |
|
23-Feb-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Keep track of phi join registers explicitly in LiveVariables.
Previously, LiveIntervalAnalysis would infer phi joins by looking for multiply
defined registers. That doesn't work if the phi join is implicitly defined in
all but one of the predecessors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96994 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 352d352c023ed411d9e4357ea01f3ec468ff87dc |
|
18-Feb-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Always normalize spill weights, also for intervals created by spilling.
Moderate the weight given to very small intervals.
The spill weight given to new intervals created when spilling was not
normalized in the same way as the original spill weights calculated by
CalcSpillWeights. That meant that restored registers would tend to hang around
because they had a much higher spill weight that unspilled registers.
This improves the runtime of a few tests by up to 10%, and there are no
significant regressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96613 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e21765d1c86dedbb5537ba6cf5e0cf156d7283ea |
|
10-Feb-2010 |
Dale Johannesen <dalej@apple.com> |
When I rewrote this loop per Chris' preference I
changed its behavior. Oops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95811 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 1d0aeabe3fce2ce6610e988b36582b47a7684f74 |
|
10-Feb-2010 |
Dale Johannesen <dalej@apple.com> |
Rewrite loop to suit Chris' preference.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95749 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| bd63520161629385ff5a0b037eccc770d8d15289 |
|
10-Feb-2010 |
Dale Johannesen <dalej@apple.com> |
Skip DBG_VALUE many places in live intervals and
register coalescing. This fixes many crashes and
places where debug info affects codegen (when
dbg.value is lowered to machine instructions, which
it isn't yet in TOT).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95739 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 518bb53485df640d7b7e3f6b0544099020c42aa7 |
|
09-Feb-2010 |
Chris Lattner <sabre@nondot.org> |
move target-independent opcodes out of TargetInstrInfo
into TargetOpcodes.h. #include the new TargetOpcodes.h
into MachineInstr. Add new inline accessors (like isPHI())
to MachineInstr, and start using them throughout the
codebase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95687 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 00a99a35840451a291eb61a192a750908a4073ae |
|
06-Feb-2010 |
Evan Cheng <evan.cheng@apple.com> |
Run codegen dce pass for all targets at all optimization levels. Previously it's
only run for x86 with fastisel. I've found it being very effective in
eliminating some obvious dead code as result of formal parameter lowering
especially when tail call optimization eliminated the need for some of the loads
from fixed frame objects. It also shrinks a number of the tests. A couple of
tests no longer make sense and are now eliminated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95493 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 1caedd056dbc3eda1537ad8251323bd985819b80 |
|
22-Jan-2010 |
Dale Johannesen <dalej@apple.com> |
Ignore DEBUG_VALUE when building live intervals;
this makes the code work transparently the same
whether they're there or not.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94240 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 8a34229dcf484739119857988772572ef0cad9f2 |
|
04-Jan-2010 |
David Greene <greened@obbligato.org> |
Change errs() to dbgs().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92529 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 74ab5eeffbd70f2387338e3ee8195be9f73e6dd8 |
|
22-Dec-2009 |
Lang Hames <lhames@gmail.com> |
Changed slot index ranges for MachineBasicBlocks to be exclusive of endpoint.
This fixes an in-place update bug where code inserted at the end of basic blocks may not be covered by existing intervals which were live across the entire block. It is also consistent with the way ranges are specified for live intervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91859 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 74215fc29fa748e006c0309671555d5873bac56a |
|
16-Dec-2009 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Reuse lowered phi nodes.
Tail duplication produces lots of identical phi nodes in different basic
blocks. Teach PHIElimination to reuse the join registers when lowering a phi
node that is identical to an already lowered node. This saves virtual
registers, and more importantly it avoids creating copies the the coalescer
doesn't know how to eliminate.
Teach LiveIntervalAnalysis about the phi joins with multiple uses.
This patch significantly reduces code size produced by -pre-regalloc-taildup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91549 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ac94863a1c090f2221ff2e21b7ee5480bd1db594 |
|
11-Dec-2009 |
Evan Cheng <evan.cheng@apple.com> |
Coalesce insert_subreg undef, x first to avoid phase ordering issue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91103 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| cf97036675340bc889cfe04295cda63afe9496e2 |
|
10-Dec-2009 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Also attempt trivial coalescing for live intervals that end in a copy.
The coalescer is supposed to clean these up, but when setting up parameters
for a function call, there may be copies to physregs. If the defining
instruction has been LICM'ed far away, the coalescer won't touch it.
The register allocation hint does not always work - when the register
allocator is backtracking, it clears the hints.
This patch is more conservative than r90502, and does not break
483.xalancbmk/i686. It still breaks the PowerPC bootstrap, so it is disabled
by default, and can be enabled with the -trivial-coalesce-ends option.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91049 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6194569d22003fddaf1a33acdbb84d5efe76e7d7 |
|
09-Dec-2009 |
Lang Hames <lhames@gmail.com> |
Added a new "splitting" spiller.
When a call is placed to spill an interval this spiller will first try to
break the interval up into its component values. Single value intervals and
intervals which have already been split (or are the result of previous splits)
are spilled by the default spiller.
Splitting intervals as described above may improve the performance of generated
code in some circumstances. This work is experimental however, and it still
miscompiles many benchmarks. It's not recommended for general use yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90951 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| dc492e037034e7671e3fb9ab3e041186cdc97508 |
|
05-Dec-2009 |
Bill Wendling <isanbard@gmail.com> |
Temporarily revert r90502. It was causing the llvm-gcc bootstrap on PPC to fail.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90653 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6b74e505be1016223e090a6c806f7caa3165a146 |
|
04-Dec-2009 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Also attempt trivial coalescing for live intervals that end in a copy.
The coalescer is supposed to clean these up, but when setting up parameters
for a function call, there may be copies to physregs. If the defining
instruction has been LICM'ed far away, the coalescer won't touch it.
The register allocation hint does not always work - when the register
allocator is backtracking, it clears the hints.
This patch takes care of a few more cases that r90163 missed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90502 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f4811a96941433fc3828869d76dfeba5ec5decd3 |
|
03-Dec-2009 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Clean up some loop logic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90481 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 9836a26da3acc15deec878cd6ba21a6b5f2e753b |
|
01-Dec-2009 |
Evan Cheng <evan.cheng@apple.com> |
Fix PR5391: support early clobber physical register def tied with a use (ewwww)
- A valno should be set HasRedefByEC if there is an early clobber def in the middle of its live ranges. It should not be set if the def of the valno is defined by an early clobber.
- If a physical register def is tied to an use and it's an early clobber, it just means the HasRedefByEC is set since it's still one continuous live range.
- Add a couple of missing checks for HasRedefByEC in the coalescer. In general, it should not coalesce a vr with a physical register if the physical register has a early clobber def somewhere. This is overly conservative but that's the price for using such a nasty inline asm "feature".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90269 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ce7a663140e6e67cf5ef7091e076e8541300c15a |
|
30-Nov-2009 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
New virtual registers created for spill intervals should inherit allocation hints from the original register.
This helps us avoid silly copies when rematting values that are copied to a physical register:
leaq _.str44(%rip), %rcx
movq %rcx, %rsi
call _strcmp
becomes:
leaq _.str44(%rip), %rsi
call _strcmp
The coalescer will not touch the movq because that would tie down the physical register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90163 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6cd8103bea5c0bc92f30b8021e9469131a2a408f |
|
20-Nov-2009 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
More consistent labelling of basic blocks in debug output
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89470 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 324da7647cfc3025e0c987176f0a300f9f780e6f |
|
20-Nov-2009 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Add MachineBasicBlock::getName, and use it in place of getBasicBlock()->getName.
Fix debug code that assumes getBasicBlock never returns NULL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89428 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 1e78aa445c5b5b466cea4478f3f9034d4be7278e |
|
18-Nov-2009 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Remove the -early-coalescing option
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89240 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| df8ed024735b651d6e0082262d4e7a00b2fa4d32 |
|
09-Nov-2009 |
Evan Cheng <evan.cheng@apple.com> |
Hide a couple of options.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86522 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 3de23e6f6cf337451a0934159da494d645b93133 |
|
07-Nov-2009 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Fix inverted conflict test in -early-coalesce.
A non-identity copy cannot be coalesced when the phi join destination register
is live at the copy site.
Also verify the condition that the PHI join source register is only used in
the PHI join. Otherwise the coalescing is invalid.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86322 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 233a60ec40b41027ff429e2f2c27fa2be762f2e9 |
|
04-Nov-2009 |
Lang Hames <lhames@gmail.com> |
The Indexes Patch.
This introduces a new pass, SlotIndexes, which is responsible for numbering
instructions for register allocation (and other clients). SlotIndexes numbering
is designed to match the existing scheme, so this patch should not cause any
changes in the generated code.
For consistency, and to avoid naming confusion, LiveIndex has been renamed
SlotIndex.
The processImplicitDefs method of the LiveIntervals analysis has been moved
into its own pass so that it can be run prior to SlotIndexes. This was
necessary to match the existing numbering scheme.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85979 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 5f4fb86d5853a433815501739584624d296b57a3 |
|
20-Oct-2009 |
Evan Cheng <evan.cheng@apple.com> |
Trim unnecessary includes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84597 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 0222a8cfb8f8f3f67e4a07164eb1ecf9c44e6f64 |
|
20-Oct-2009 |
Evan Cheng <evan.cheng@apple.com> |
If the physical register being spilled does not have an interval, spill its sub-registers instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84586 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| a70dca156fa76d452f54829b5c5f962ddfd94ef2 |
|
10-Oct-2009 |
Dan Gohman <gohman@apple.com> |
Factor out LiveIntervalAnalysis' code to determine whether an instruction
is trivially rematerializable and integrate it into
TargetInstrInfo::isTriviallyReMaterializable. This way, all places that
need to know whether an instruction is rematerializable will get the
same answer.
This enables the useful parts of the aggressive-remat option by
default -- using AliasAnalysis to determine whether a memory location
is invariant, and removes the questionable parts -- rematting operations
with virtual register inputs that may not be live everywhere.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83687 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 599a87aca0194edb46f0bee141c3de8281bf22b9 |
|
09-Oct-2009 |
Dan Gohman <gohman@apple.com> |
isTriviallyReMaterializable checks the
TargetInstrDesc::isRematerializable flag, so it isn't necessary to do
this check in its callers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83671 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 2627e08e05d8e7521f7c03496ede45868144d426 |
|
07-Oct-2009 |
Dan Gohman <gohman@apple.com> |
Replace some code for aggressive-remat with MachineInstr::isInvariantLoad, and
teach it how to recognize invariant physical registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83476 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6cc91e39c04c0c00756e7667f623f787c4851439 |
|
03-Oct-2009 |
Lang Hames <lhames@gmail.com> |
Oops. Renamed remaining MachineInstrIndex references.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83255 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| cc3b0650f1feec45d1a2890b20c05c4b325f1788 |
|
03-Oct-2009 |
Lang Hames <lhames@gmail.com> |
Renamed MachineInstrIndex to LiveIndex.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83254 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 295a8089cd76079d3e2798c6a44ee249852cab12 |
|
26-Sep-2009 |
Daniel Dunbar <daniel@zuster.org> |
Remove unused variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82821 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 2bf0649e053d1589689d2e4cf32c7bf1e5e6ae12 |
|
26-Sep-2009 |
Dan Gohman <gohman@apple.com> |
Simplify a few more uses of reg_iterator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82812 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c76909abfec876c6b751d693ebd3df07df686aa0 |
|
25-Sep-2009 |
Dan Gohman <gohman@apple.com> |
Improve MachineMemOperand handling.
- Allocate MachineMemOperands and MachineMemOperand lists in MachineFunctions.
This eliminates MachineInstr's std::list member and allows the data to be
created by isel and live for the remainder of codegen, avoiding a lot of
copying and unnecessary translation. This also shrinks MemSDNode.
- Delete MemOperandSDNode. Introduce MachineSDNode which has dedicated
fields for MachineMemOperands.
- Change MemSDNode to have a MachineMemOperand member instead of its own
fields with the same information. This introduces some redundancy, but
it's more consistent with what MachineInstr will eventually want.
- Ignore alignment when searching for redundant loads for CSE, but remember
the greatest alignment.
Target-specific code which previously used MemOperandSDNodes with generic
SDNodes now use MemIntrinsicSDNodes, with opcodes in a designated range
so that the SelectionDAG framework knows that MachineMemOperand information
is available.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82794 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 296925dc169b45e7535abdccc8dc143a8bec7f0a |
|
23-Sep-2009 |
Evan Cheng <evan.cheng@apple.com> |
Fix PR5024. LiveVariables physical register defs should *commit* only after all
of the defs are processed.
Also fix a implicit_def propagation bug: a implicit_def of a physical register
should be applied to uses of the sub-registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82616 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| b0f5973bee566269f41d1cc21b7a1d3bede1d837 |
|
21-Sep-2009 |
Evan Cheng <evan.cheng@apple.com> |
Fix PR4986. "r1024 = insert_subreg r1024, undef, 2" cannot be turned in an implicit_def. Instead, it's an identity copy so it should be eliminated. Also make sure to update livevariable kill information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82436 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 39faac2531268b8555475796c6071556670dc290 |
|
20-Sep-2009 |
Dale Johannesen <dalej@apple.com> |
When computing live intervals for earlyclobber operands,
we pushed the beginning of the interval back 1, so the
interval would overlap with inputs that die. We were
also pushing the end of the interval back 1, though,
which means the earlyclobber didn't overlap with other
output operands. Don't do this. PR 4964.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82342 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 504f9a61e61ee274fe50d8300825bdc2e5adb9b0 |
|
15-Sep-2009 |
Daniel Dunbar <daniel@zuster.org> |
Fix -Asserts warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81909 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 3f85549f4dab19f9dde2c766151bf01e688f83b7 |
|
15-Sep-2009 |
Evan Cheng <evan.cheng@apple.com> |
Another try at early partial coalescing. Identity phi source copies (their sources are defined by phi join def) are coalesced. And the phi join copy is backward copy propagated into the other copies.
Still miscompiling some tests. :-(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81849 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 752195e3c662c6b5db042cf897c984624720f3b8 |
|
14-Sep-2009 |
Evan Cheng <evan.cheng@apple.com> |
Add early coalescing to liveintervals. This is work in progress and is known to miscompute some tests. Read it at your own rish, I have aged 10 year while writing this.
The gist of this is if source of some of the copies that feed into a phi join is defined by the phi join, we'd like to eliminate them. However, if any of the non-identity source overlaps the live interval of the phi join then the coalescer won't be able to coalesce them. The early coalescer's job is to eliminate the identity copies by partially-coalescing the two live intervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81796 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 35f291d2c5f80e8e713704190230064311bbbbbe |
|
12-Sep-2009 |
Lang Hames <lhames@gmail.com> |
Moved some more index operations over to LiveIntervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81605 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 217311130d83f04c05d4248c557cef4bc8994e50 |
|
12-Sep-2009 |
Evan Cheng <evan.cheng@apple.com> |
80 col violations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81598 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 8651125d2885f74546b6e2a556082111d5b75da3 |
|
04-Sep-2009 |
Lang Hames <lhames@gmail.com> |
Replaces uses of unsigned for indexes in LiveInterval and VNInfo with
a new class, MachineInstrIndex, which hides arithmetic details from
most clients. This is a step towards allowing the register allocator
to update/insert code during allocation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81040 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 45cfe545ec8177262dabc70580ce05feaa1c3880 |
|
23-Aug-2009 |
Chris Lattner <sabre@nondot.org> |
Change Pass::print to take a raw ostream instead of std::ostream,
update all code that this affects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79830 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 705e07f578e2b3af47ddab610feb4e7f2d3063a5 |
|
23-Aug-2009 |
Chris Lattner <sabre@nondot.org> |
remove various std::ostream version of printing methods from
MachineInstr and MachineOperand. This required eliminating a
bunch of stuff that was using DOUT, I hope that bill doesn't
mind me stealing his fun. ;-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79813 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 77942d4ee47e76626d574b027e4b9c5c90e2bbf4 |
|
23-Aug-2009 |
Chris Lattner <sabre@nondot.org> |
remove a dead class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79795 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 8e6179fb134af929ee7c937c82d9dc1c9a104c5f |
|
22-Aug-2009 |
Bill Wendling <isanbard@gmail.com> |
Convert DOUT to DEBUG(errs()...).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79752 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 52c1afcaea61440950a11a4ccadac4354420d727 |
|
11-Aug-2009 |
Lang Hames <lhames@gmail.com> |
Modified VNInfo. The "copy" member is now a union which holds the copy for a register interval, or the defining register for a stack interval. Access is via getCopy/setCopy and getReg/setReg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78620 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6ade93bbdceac28f441cfdc2571929a866eb7d24 |
|
05-Aug-2009 |
Evan Cheng <evan.cheng@apple.com> |
Turn some insert_subreg, extract_subreg, subreg_to_reg into implicit_defs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78151 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| b5257664795d49ada0d4669fe8ed1cd49c04fbf3 |
|
03-Aug-2009 |
David Greene <greened@obbligato.org> |
Re-apply LiveInterval index dumping patch, with fixes suggested by Bill
and others.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78003 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 845012e6d31799c7fbd1193fa1af8ee2d12e9231 |
|
01-Aug-2009 |
Dan Gohman <gohman@apple.com> |
Use setPreservesAll and setPreservesCFG in CodeGen passes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77754 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ce63ffb52f249b62cdf2d250c128007b13f27e71 |
|
25-Jul-2009 |
Daniel Dunbar <daniel@zuster.org> |
More migration to raw_ostream, the water has dried up around the iostream hole.
- Some clients which used DOUT have moved to DEBUG. We are deprecating the
"magic" DOUT behavior which avoided calling printing functions when the
statement was disabled. In addition to being unnecessary magic, it had the
downside of leaving code in -Asserts builds, and of hiding potentially
unnecessary computations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77019 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 3f0e83067d7938f742d21e14fc87c006d2fc3161 |
|
24-Jul-2009 |
Daniel Dunbar <daniel@zuster.org> |
Move to raw_ostream.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76963 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 340482dcc0060b10976b5ff13c44b6d4c8446b9b |
|
22-Jul-2009 |
David Greene <greened@obbligato.org> |
Constify the key in Mi2IndexMap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76801 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 3380d5c4aaafc3d78d32f583d685d64a67ae5224 |
|
21-Jul-2009 |
Chris Lattner <sabre@nondot.org> |
revert r76602, 76603, and r76615, pending design discussions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76646 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| a358c1db5c744f7c524b18f2860c2d48613adbd1 |
|
21-Jul-2009 |
David Greene <greened@obbligato.org> |
Prefix IR dumps with LiveInterval indices when possible. This turns
this:
%ESI<def> = MOV32rr %EDI<kill>
ADJCALLSTACKDOWN64 0, %RSP<imp-def>, %EFLAGS<imp-def,dead>, %RSP<imp-use>
%reg1027<def> = MOVZX64rr32 %ESI
%reg1027<def> = ADD64ri8 %reg1027, 15, %EFLAGS<imp-def,dead>
%reg1027<def> = AND64ri8 %reg1027, -16, %EFLAGS<imp-def,dead>
%RDI<def> = MOV64rr %RSP
%RDI<def> = SUB64rr %RDI, %reg1027<kill>, %EFLAGS<imp-def,dead>
%RSP<def> = MOV64rr %RDI
into this:
4 %reg1024<def> = MOV32rr %EDI<kill>
12 ADJCALLSTACKDOWN64 0, %RSP<imp-def>, %EFLAGS<imp-def,dead>, %RSP<imp-use>
20 %reg1025<def> = MOVZX64rr32 %reg1024
28 %reg1026<def> = MOV64rr %reg1025<kill>
36 %reg1026<def> = ADD64ri8 %reg1026, 15, %EFLAGS<imp-def,dead>
44 %reg1027<def> = MOV64rr %reg1026<kill>
52 %reg1027<def> = AND64ri8 %reg1027, -16, %EFLAGS<imp-def,dead>
60 %reg1028<def> = MOV64rr %RSP
68 %reg1029<def> = MOV64rr %reg1028<kill>
76 %reg1029<def> = SUB64rr %reg1029, %reg1027<kill>, %EFLAGS<imp-def,dead>
84 %RSP<def> = MOV64rr %reg1029
This helps greatly when debugging register allocation and coalescing
problems.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76615 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d129d73b725e32d2fc0c87f392c239db8801e922 |
|
17-Jul-2009 |
Evan Cheng <evan.cheng@apple.com> |
Simplify the coalescer (finally!) by making LiveIntervals::processImplicitDefs a little more aggressive and teaching liveintervals to make use of isUndef marker on MachineOperands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76223 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 5f15992b77f178f633e414603a732279997ae1e2 |
|
16-Jul-2009 |
Evan Cheng <evan.cheng@apple.com> |
Changed my mind. We now allow remat of instructions whose defs have subreg indices.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76100 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 378445303b10b092a898a75131141a8259cff50b |
|
16-Jul-2009 |
Evan Cheng <evan.cheng@apple.com> |
Let callers decide the sub-register index on the def operand of rematerialized instructions.
Avoid remat'ing instructions whose def have sub-register indices for now. It's just really really hard to get all the cases right.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75900 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c23197a26f34f559ea9797de51e187087c039c42 |
|
14-Jul-2009 |
Torok Edwin <edwintorok@gmail.com> |
llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.
This adds location info for all llvm_unreachable calls (which is a macro now) in
!NDEBUG builds.
In NDEBUG builds location info and the message is off (it only prints
"UREACHABLE executed").
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75640 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c25e7581b9b8088910da31702d4ca21c4734c6d7 |
|
11-Jul-2009 |
Torok Edwin <edwintorok@gmail.com> |
assert(0) -> LLVM_UNREACHABLE.
Make llvm_unreachable take an optional string, thus moving the cerr<< out of
line.
LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for
NDEBUG builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75379 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 7d696d80409aad20bb5da0fc4eccab941dd371d4 |
|
11-Jul-2009 |
Torok Edwin <edwintorok@gmail.com> |
Convert more assert(0)+abort() -> LLVM_UNREACHABLE,
and abort()/exit() -> llvm_report_error().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75363 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 413a15ef0e5e727afeedf57e8b2f416acf3662c0 |
|
10-Jul-2009 |
Duncan Sands <baldrick@free.fr> |
Avoid compiler warnings if assertions turned off.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75267 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ffd1326ff8dfc652a8026c3faebf55bbba7c32c7 |
|
09-Jul-2009 |
Lang Hames <lhames@gmail.com> |
Improved tracking of value number kills. VN kills are now represented
as an (index,bool) pair. The bool flag records whether the kill is a
PHI kill or not. This code will be used to enable splitting of live
intervals containing PHI-kills.
A slight change to live interval weights introduced an extra spill
into lsr-code-insertion (outside the critical sections). The test
condition has been updated to reflect this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75097 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 459a7c6b6ad9c4fcb9f119aa6eaaf2769b00d9b1 |
|
01-Jul-2009 |
Evan Cheng <evan.cheng@apple.com> |
Remove special handling of implicit_def. Fix a couple more bugs in liveintervalanalysis and coalescer handling of implicit_def.
Note, isUndef marker must be placed even on implicit_def def operand or else the scavenger will not ignore it. This is necessary because -O0 path does not use liveintervalanalysis, it treats implicit_def just like any other def.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74601 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 2578ba26e72e36dde64be0f52a2788480aad3378 |
|
01-Jul-2009 |
Evan Cheng <evan.cheng@apple.com> |
Handle IMPLICIT_DEF with isUndef operand marker, part 2. This patch moves the code to annotate machineoperands to LiveIntervalAnalysis. It also add markers for implicit_def that define physical registers. The rest, is just a lot of details.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74580 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 4784f1fc73abf6005b7b7262d395af71b57b1255 |
|
30-Jun-2009 |
Evan Cheng <evan.cheng@apple.com> |
Add a bit IsUndef to MachineOperand. This indicates the def / use register operand is defined by an implicit_def. That means it can def / use any register and passes (e.g. register scavenger) can feel free to ignore them.
The register allocator, when it allocates a register to a virtual register defined by an implicit_def, can allocate any physical register without worrying about overlapping live ranges. It should mark all of operands of the said virtual register so later passes will do the right thing.
This is not the best solution. But it should be a lot less fragile to having the scavenger try to track what is defined by implicit_def.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74518 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 1873d0c2257b18451c5bb35577f929d0723433a0 |
|
27-Jun-2009 |
Chris Lattner <sabre@nondot.org> |
When doing remat, don't consider uses of non-allocatable physregs. Patch
by Evan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74370 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 10382fb71d8306f320ecbeb7049d25354c0e5457 |
|
19-Jun-2009 |
Lang Hames <lhames@gmail.com> |
More VNInfo tweaking, plus a little progress on intra-block splitting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73750 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d21c31610c4a10e9e638f4221b5df89ea932e258 |
|
19-Jun-2009 |
Lang Hames <lhames@gmail.com> |
Improved PHI def marking, replaced some gotos with breaks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73727 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 857c4e01f85601cf2084adb860616256ee47c177 |
|
17-Jun-2009 |
Lang Hames <lhames@gmail.com> |
VNInfo cleanup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73634 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 90f95f88c6ce09c6744777dc9d140c3c77203b92 |
|
14-Jun-2009 |
Evan Cheng <evan.cheng@apple.com> |
Move register allocation preference (or hint) from LiveInterval to MachineRegisterInfo. This allows more passes to set them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73346 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f41538d1b54f55e8900394929b50f7ce3e61125f |
|
02-Jun-2009 |
Lang Hames <lhames@gmail.com> |
Update to in-place spilling framework. Includes live interval scaling and trivial rewriter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72729 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 493a3d015cbb2bcc18d9293a4dec3b35c7493818 |
|
26-May-2009 |
Jeffrey Yasskin <jyasskin@google.com> |
LiveVariables::VarInfo contains an AliveBlocks BitVector, which has as many
entries as there are basic blocks in the function. LiveVariables::getVarInfo
creates a VarInfo struct for every register in the function, leading to
quadratic space use. This patch changes the BitVector to a SparseBitVector,
which doesn't help the worst-case memory use but does reduce the actual use in
very long functions with short-lived variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72426 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c781a243a3d17e7e763515794168d8fa6043f565 |
|
03-May-2009 |
Evan Cheng <evan.cheng@apple.com> |
In some rare cases, the register allocator can spill registers but end up not utilizing registers at all. The fundamental problem is linearscan's backtracking can end up freeing more than one allocated registers. However, reloads and restores might be folded into uses / defs and freed registers might not be used at all.
VirtRegMap keeps track of allocations so it knows what's not used. As a horrible hack, the stack coloring can color spill slots with *free* registers. That is, it replace reload and spills with copies from and to the free register. It unfold instructions that load and store the spill slot and replace them with register using variants.
Not yet enabled. This is part 1. More coming.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70787 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c45288e06bfe7d0b0e74eff350d280fa6c944373 |
|
27-Apr-2009 |
Evan Cheng <evan.cheng@apple.com> |
Fix PR4076. Correctly create live interval of physical register with two-address update.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70245 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d521bc983b32da71b85d42dd30da87079afa5728 |
|
27-Apr-2009 |
Evan Cheng <evan.cheng@apple.com> |
Fix PR4056. It's possible a physical register def is dead if its implicit use is deleted by two-address pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70213 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 5b69ebac857104770b1a751bf7a463fda4330a62 |
|
22-Apr-2009 |
Evan Cheng <evan.cheng@apple.com> |
It has finally happened. Spiller is now using live interval info.
This fixes a very subtle bug. vr defined by an implicit_def is allowed overlap with any register since it doesn't actually modify anything. However, if it's used as a two-address use, its live range can be extended and it can be spilled. The spiller must take care not to emit a reload for the vn number that's defined by the implicit_def. This is both a correctness and performance issue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69743 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 206d1856ad80e58a3a9e01b7c0d3fef66b3cacc2 |
|
20-Apr-2009 |
Evan Cheng <evan.cheng@apple.com> |
Added a linearscan register allocation optimization. When the register allocator spill an interval with multiple uses in the same basic block, it creates a different virtual register for each of the reloads. e.g.
%reg1498<def> = MOV32rm %reg1024, 1, %reg0, 12, %reg0, Mem:LD(4,4) [sunkaddr39 + 0]
%reg1506<def> = MOV32rm %reg1024, 1, %reg0, 8, %reg0, Mem:LD(4,4) [sunkaddr42 + 0]
%reg1486<def> = MOV32rr %reg1506
%reg1486<def> = XOR32rr %reg1486, %reg1498, %EFLAGS<imp-def,dead>
%reg1510<def> = MOV32rm %reg1024, 1, %reg0, 4, %reg0, Mem:LD(4,4) [sunkaddr45 + 0]
=>
%reg1498<def> = MOV32rm %reg2036, 1, %reg0, 12, %reg0, Mem:LD(4,4) [sunkaddr39 + 0]
%reg1506<def> = MOV32rm %reg2037, 1, %reg0, 8, %reg0, Mem:LD(4,4) [sunkaddr42 + 0]
%reg1486<def> = MOV32rr %reg1506
%reg1486<def> = XOR32rr %reg1486, %reg1498, %EFLAGS<imp-def,dead>
%reg1510<def> = MOV32rm %reg2038, 1, %reg0, 4, %reg0, Mem:LD(4,4) [sunkaddr45 + 0]
From linearscan's point of view, each of reg2036, 2037, and 2038 are separate registers, each is "killed" after a single use. The reloaded register is available and it's often clobbered right away. e.g. In thise case reg1498 is allocated EAX while reg2036 is allocated RAX. This means we end up with multiple reloads from the same stack slot in the same basic block.
Now linearscan recognize there are other reloads from same SS in the same BB. So it'll "downgrade" RAX (and its aliases) after reg2036 is allocated until the next reload (reg2037) is done. This greatly increase the likihood reloads from SS are reused.
This speeds up sha1 from OpenSSL by 5.8%. It is also an across the board win for SPEC2000 and 2006.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69585 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 70f2f65aacdbc96fe158b2860b5f0bad075ee548 |
|
13-Apr-2009 |
Dan Gohman <gohman@apple.com> |
Don't abort on an aliasing physical register that does not have
a live interval. This is needed for some upcoming subreg changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68956 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d9df5017040489303acb57bdd8697ef0f8bafc08 |
|
09-Apr-2009 |
Bob Wilson <bob.wilson@apple.com> |
Fix pr3954. The register scavenger asserts for inline assembly with
register destinations that are tied to source operands. The
TargetInstrDescr::findTiedToSrcOperand method silently fails for inline
assembly. The existing MachineInstr::isRegReDefinedByTwoAddr was very
close to doing what is needed, so this revision makes a few changes to
that method and also renames it to isRegTiedToUseOperand (for consistency
with the very similar isRegTiedToDefOperand and because it handles both
two-address instructions and inline assembly with tied registers).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68714 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 97121ba2afb8d566ff1bf5c4e8fc5d4077940a7f |
|
08-Apr-2009 |
Dan Gohman <gohman@apple.com> |
Implement support for using modeling implicit-zero-extension on x86-64
with SUBREG_TO_REG, teach SimpleRegisterCoalescing to coalesce
SUBREG_TO_REG instructions (which are similar to INSERT_SUBREG
instructions), and teach the DAGCombiner to take advantage of this on
targets which support it. This eliminates many redundant
zero-extension operations on x86-64.
This adds a new TargetLowering hook, isZExtFree. It's similar to
isTruncateFree, except it only applies to actual definitions, and not
no-op truncates which may not zero the high bits.
Also, this adds a new optimization to SimplifyDemandedBits: transform
operations like x+y into (zext (add (trunc x), (trunc y))) on targets
where all the casts are no-ops. In contexts where the high part of the
add is explicitly masked off, this allows the mask operation to be
eliminated. Fix the DAGCombiner to avoid undoing these transformations
to eliminate casts on targets where the casts are no-ops.
Also, this adds a new two-address lowering heuristic. Since
two-address lowering runs before coalescing, it helps to be able to
look through copies when deciding whether commuting and/or
three-address conversion are profitable.
Also, fix a bug in LiveInterval::MergeInClobberRanges. It didn't handle
the case that a clobber range extended both before and beyond an
existing live range. In that case, multiple live ranges need to be
added. This was exposed by the new subreg coalescing code.
Remove 2008-05-06-SpillerBug.ll. It was bugpoint-reduced, and the
spiller behavior it was looking for no longer occurrs with the new
instruction selection.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68576 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| b98bbb7597495fb401b020679a94389298175506 |
|
26-Mar-2009 |
Owen Anderson <resistor@mac.com> |
Don't assign a new stack slot if the pre-alloc splitter already assigned one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67764 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 2824a655509577127d221eecd1425de196f80320 |
|
23-Mar-2009 |
Evan Cheng <evan.cheng@apple.com> |
Fix PR3391 and PR3864. Reg allocator infinite looping.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67544 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| fb11288109329cb736d9f49769581a0d0c23fe19 |
|
23-Mar-2009 |
Evan Cheng <evan.cheng@apple.com> |
Model inline asm constraint which ties an input to an output register as machine operand TIED_TO constraint. This eliminated the need to pre-allocate registers for these. This also allows register allocator can eliminate the unneeded copies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67512 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 48fe63526e35ddaee7e98879596a569911f41319 |
|
20-Mar-2009 |
Sebastian Redl <sebastian.redl@getdesigned.at> |
Fix the Win32 VS2008 build:
- Make type declarations match the struct/class keyword of the definition.
- Move AddSignalHandler into the namespace where it belongs.
- Correctly call functions from template base.
- Some other small changes.
With this patch, LLVM and Clang should build properly and with far less noise under VS2008.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67347 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| a24752ff43dc1ad8c18c5d9e78549c45f62b980e |
|
19-Mar-2009 |
Evan Cheng <evan.cheng@apple.com> |
Added MachineInstr::isRegTiedToDefOperand to check for two-addressness.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67335 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 0076c616e8abc2ecf36600a7ac20ec784420cdc4 |
|
05-Mar-2009 |
Evan Cheng <evan.cheng@apple.com> |
Fix how livein live intervals are handled. Previously it could end at MBB start. Sorry, no small test case possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66129 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 0a1fcce09230e9b4bd30a8f07447aa075dce7470 |
|
08-Feb-2009 |
Evan Cheng <evan.cheng@apple.com> |
Fix PR3486. Fix a bug in code that manually patch physical register live interval after its sub-register is coalesced with a virtual register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64082 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 5a3c6a87b0173b9d367f7b55e7c99e5110ede057 |
|
29-Jan-2009 |
Evan Cheng <evan.cheng@apple.com> |
Exit with nice warnings when register allocator run out of registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63267 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 04ee5a1d9267e5e6fab8f088095fcb83c3c5cbd1 |
|
20-Jan-2009 |
Evan Cheng <evan.cheng@apple.com> |
Change TargetInstrInfo::isMoveInstr to return source and destination sub-register indices as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62600 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 8f90b6eb2fd0125f5b779de80954944f9071fb87 |
|
07-Jan-2009 |
Evan Cheng <evan.cheng@apple.com> |
The coalescer does not coalesce a virtual register to a physical register if any of the physical register's sub-register live intervals overlaps with the virtual register. This is overly conservative. It prevents a extract_subreg from being coalesced away:
v1024 = EDI // not killed
=
= EDI
One possible solution is for the coalescer to examine the sub-register live intervals in the same manner as the physical register. Another possibility is to examine defs and uses (when needed) of sub-registers. Both solutions are too expensive. For now, look for "short virtual intervals" and scan instructions to look for conflict instead.
This is a small win on x86-64. e.g. It shaves 403.gcc by ~80 instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61847 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 5379f412bc6ac6171f3bd73930197bfce88c2faa |
|
19-Dec-2008 |
Evan Cheng <evan.cheng@apple.com> |
Fix PR3149. If an early clobber def is a physical register and it is tied to an input operand, it effectively extends the live range of the physical register. Currently we do not have a good way to represent this.
172 %ECX<def> = MOV32rr %reg1039<kill>
180 INLINEASM <es:subl $5,$1
sbbl $3,$0>, 10, %EAX<def>, 14, %ECX<earlyclobber,def>, 9, %EAX<kill>,
36, <fi#0>, 1, %reg0, 0, 9, %ECX<kill>, 36, <fi#1>, 1, %reg0, 0
188 %EAX<def> = MOV32rr %EAX<kill>
196 %ECX<def> = MOV32rr %ECX<kill>
204 %ECX<def> = MOV32rr %ECX<kill>
212 %EAX<def> = MOV32rr %EAX<kill>
220 %EAX<def> = MOV32rr %EAX
228 %reg1039<def> = MOV32rr %ECX<kill>
The early clobber operand ties ECX input to the ECX def.
The live interval of ECX is represented as this:
%reg20,inf = [46,47:1)[174,230:0) 0@174-(230) 1@46-(47)
The right way to represent this is something like
%reg20,inf = [46,47:2)[174,182:1)[181:230:0) 0@174-(182) 1@181-230 @2@46-(47)
Of course that won't work since that means overlapping live ranges defined by two val#.
The workaround for now is to add a bit to val# which says the val# is redefined by a early clobber def somewhere. This prevents the move at 228 from being optimized away by SimpleRegisterCoalescing::AdjustCopiesBackFrom.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61259 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c93ced5b34b50a622ee8e49d90592f03ac7ff992 |
|
08-Dec-2008 |
Dan Gohman <gohman@apple.com> |
Clarify some comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60683 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 650d7f3ff4d22646def71b842f7f163c539e0aaf |
|
05-Dec-2008 |
Evan Cheng <evan.cheng@apple.com> |
Reason #3 from 60595 doesn't hold true. If we can fold a PIC load from constpool into a use, the rewrite happens at time of spill (not in VirtRegMap). Later on, if the GlobalBaseReg is spilled, the spiller can see the use uses GlobalBaseReg and do the right thing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60596 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 72eeb94fe1d69cd05bdbbe86b2bc9fa25c963c22 |
|
05-Dec-2008 |
Evan Cheng <evan.cheng@apple.com> |
Fix comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60592 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 2ce7f2068f13566f5a70ee779e3bb83a6cb8d942 |
|
05-Dec-2008 |
Dan Gohman <gohman@apple.com> |
Drop the reg argument to isRegReDefinedByTwoAddr, which was redundant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60586 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 15511cf1660cfd6bb8b8e8fca2db9450f50430ee |
|
03-Dec-2008 |
Dan Gohman <gohman@apple.com> |
Rename isSimpleLoad to canFoldAsLoad, to better reflect its meaning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60487 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 2ad8245566a3c92d4559727a877d57ecf5d078c8 |
|
26-Nov-2008 |
Dan Gohman <gohman@apple.com> |
LiveRanges are represented as half-open ranges. Fix the findLiveInMBBs code
and the LiveInterval.h top-level comment and accordingly. This fixes blocks
having spurious live-in registers in boundary cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60092 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 59500c8f9a76b3386329b6f837255c16f4e8b61b |
|
21-Nov-2008 |
Devang Patel <dpatel@apple.com> |
Silence unused variable warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59841 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 4a829ecc54cdcb0192550639556a18728af5119c |
|
13-Nov-2008 |
Dan Gohman <gohman@apple.com> |
Use find_first/find_next to iterate through all the set bits in a
BitVector, instead of manually testing each bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59246 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 4cbb3ca67d8b1ca5fee7793633de052a3b8f87b2 |
|
12-Nov-2008 |
Dan Gohman <gohman@apple.com> |
Remove some debugging code made redundant by the change to do
coalescing as a separate pass rather than inside of
LiveIntervalAnalysis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59146 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d0e32c5d5c1bb03bc0cc8aeef52728724cab1c51 |
|
29-Oct-2008 |
Evan Cheng <evan.cheng@apple.com> |
- Rewrite code that update register live interval that's split.
- Create and update spill slot live intervals.
- Lots of bug fixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58367 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 26b86a0b5676253040dc206b437536a24306fb76 |
|
27-Oct-2008 |
David Greene <greened@obbligato.org> |
Fix PR2634. Create new virtual registers from spills early so that we
can give it the same stack slot as the spilled interval if it is folded.
This prevents the fold/unfold code from pointing to the wrong register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58255 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 06587497dc1c39516f24784a2ac1d9323faae0a5 |
|
24-Oct-2008 |
Evan Cheng <evan.cheng@apple.com> |
Avoid splitting an interval multiple times; avoid splitting re-materializable val# (for now).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58068 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 4ed4329c37f5a64c16ad4dc1960cbcb66b7118d4 |
|
18-Oct-2008 |
Evan Cheng <evan.cheng@apple.com> |
By min, I mean max.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57766 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 99fe34b9b2bb8786da6c7f6134ae17d4c2cd8bf7 |
|
18-Oct-2008 |
Evan Cheng <evan.cheng@apple.com> |
When creating intervals, leave min(1, numdefs) holes after each instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57765 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 95dad830bbf975cb4cea4e1ac685781a18676a7a |
|
07-Oct-2008 |
Owen Anderson <resistor@mac.com> |
Add an option to enable StrongPHIElimination, for ease of testing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57259 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d735b8019b0f297d7c14b55adcd887af24d8e602 |
|
03-Oct-2008 |
Dan Gohman <gohman@apple.com> |
Switch the MachineOperand accessors back to the short names like
isReg, etc., from isRegister, etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57006 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 309c6162c62ba35ded8650a0ea4d2036de7480fd |
|
01-Oct-2008 |
Owen Anderson <resistor@mac.com> |
Fix a simple error in renumbering kill markaers, that took an inordinant amount of time to track down.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56889 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| dc37786595beedd0a68d8e2cbd91ae53ad58d133 |
|
30-Sep-2008 |
Evan Cheng <evan.cheng@apple.com> |
Re-apply 56835 along with header file changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56848 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 46292be362c1b0bb0aecf737cd4dbb81fdd38586 |
|
30-Sep-2008 |
Duncan Sands <baldrick@free.fr> |
Revert commit 56835 since it breaks the build.
"If a re-materializable instruction has a register
operand, the spiller will change the register operand's
spill weight to HUGE_VAL to avoid it being spilled.
However, if the operand is already in the queue ready
to be spilled, avoid re-materializing it".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56837 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d41474d2c09a9fd0d1251554b920a783839b2787 |
|
30-Sep-2008 |
Evan Cheng <evan.cheng@apple.com> |
If a re-materializable instruction has a register operand, the spiller will change the register operand's spill weight to HUGE_VAL to avoid it being spilled. However, if the operand is already in the queue ready to be spilled, avoid re-materializing it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56835 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 86b49f8e2de796cb46c7c8b6a4c4900533fd53f4 |
|
24-Sep-2008 |
Dale Johannesen <dalej@apple.com> |
Next round of earlyclobber handling. Approach the
RA problem by expanding the live interval of an
earlyclobber def back one slot. Remove
overlap-earlyclobber throughout. Remove
earlyclobber bits and their handling from
live internals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56539 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 134eb73fc35e6ead3cfd3ed5024d0d7efa507441 |
|
21-Sep-2008 |
Owen Anderson <resistor@mac.com> |
Fetch the starting index of the block when assigning intervals. This gets live-in indices
correct in the presence of things like EH labels.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56410 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| fa48f941304f29f967e0a7fc6807d7026ba99b7b |
|
19-Sep-2008 |
Dale Johannesen <dalej@apple.com> |
Remove AsmThatEarlyClobber etc. from LiveIntervalAnalysis
and redo as linked list walk. Logic moved into RA.
Per review feedback.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56326 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 91aac1015e6714d959801dd8d60f55a72827dc4d |
|
17-Sep-2008 |
Dale Johannesen <dalej@apple.com> |
Add a bit to mark operands of asm's that conflict
with an earlyclobber operand elsewhere. Propagate
this bit and the earlyclobber bit through SDISel.
Change linear-scan RA not to allocate regs in a way
that conflicts with an earlyclobber. See also comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56290 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 99500aeb7c9a05db57e228544a3f81de2faf24ef |
|
16-Sep-2008 |
Owen Anderson <resistor@mac.com> |
Live intervals for live-in registers should begin at the beginning of a basic block, not at the first
instruction. Also, their valno's should have an unknown def. This has no effect currently, but was
causing issues when StrongPHIElimination was enabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56231 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 014278e6a11fa0767853b831e5bf51b95bf541c5 |
|
13-Sep-2008 |
Dan Gohman <gohman@apple.com> |
Remove isImm(), isReg(), and friends, in favor of
isImmediate(), isRegister(), and friends, to avoid confusion
about having two different names with the same meaning. I'm
not attached to the longer names, and would be ok with
changing to the shorter names if others prefer it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56189 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| a41e47afc19d2beb741edae16e3918aadade325d |
|
20-Aug-2008 |
Owen Anderson <resistor@mac.com> |
Allow the fast-path spilling code to attempt folding, but still leaving out remat and splitting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55012 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 712c9f069048e18c1b3782046487f5e1f74b2483 |
|
19-Aug-2008 |
Owen Anderson <resistor@mac.com> |
The fast-path still needs to set kill markers and spill/restore points as appropriate.
With this patch, all of MultiSource/Applications and all of SPEC2000/2006 pass with
the SimpleSpiller and this fast-path enabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55000 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ae339babb2a2445e7bb009912a39994718f10d54 |
|
19-Aug-2008 |
Owen Anderson <resistor@mac.com> |
Add a flag to enable the fast spilling path.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54958 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 1719731d3d8ab6a986d67912f35daaad4f6910db |
|
19-Aug-2008 |
Owen Anderson <resistor@mac.com> |
Fix a few more bugs:
1) Assign stack slots to new temporaries.
2) Don't insert an interval into the return vector more than once.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54956 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 9a032931453209505f6765a35be108ae5ea39b3b |
|
18-Aug-2008 |
Owen Anderson <resistor@mac.com> |
Fix several bugs in the new fast-path:
1) Remove an incorrect assertion.
2) Set the stack slot weight properly.
3) Resize the VirtRegMap when needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54949 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 133f10f9bddc857d86fab89cfe5573f2515ae7cf |
|
18-Aug-2008 |
Owen Anderson <resistor@mac.com> |
Clients of addIntervalForSpills expect the added intervals to be returned sorted by starting index.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54939 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 8dc2cbe793ff577f69c17426d6dfaef94ad69191 |
|
18-Aug-2008 |
Owen Anderson <resistor@mac.com> |
Simplify the fast-patch interval spilling by using MachineRegisterInfo::reg_iterator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54930 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d6664311acbd05a8a710ccea8f9f5fdbfa35f834 |
|
18-Aug-2008 |
Owen Anderson <resistor@mac.com> |
Resurrect some ancient code to add spill ranges without attempting folding, remat, or splitting. This code has been updated to current APIs
in so far as it compiles and, in theory, works, but does not take advantage of recent advancements. For instance, it could be improved by using
MachineRegisterInfo::use_iterator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54924 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 289983123ba4170c8a27e9638935818f8142bc89 |
|
14-Aug-2008 |
Owen Anderson <resistor@mac.com> |
Expunge the last uses of std::map from LiveIntervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54766 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 20e2839cb975a2d4ee931e1ea4c4660a36ef0177 |
|
14-Aug-2008 |
Owen Anderson <resistor@mac.com> |
Move r2iMap_ over to DenseMap from std::map.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54765 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 03857b29d8271a23943254579e6cf7b7df4b1bd3 |
|
13-Aug-2008 |
Owen Anderson <resistor@mac.com> |
Make the allocation of LiveIntervals explicit, rather than holding them in the r2iMap_ by value. This will prevent references to them from being invalidated
if the map is changed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54763 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| aa111080dfb161054255c9c367779f1ea2581849 |
|
06-Aug-2008 |
Owen Anderson <resistor@mac.com> |
Oops, didn't mean to commit this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54425 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 788d04152a132121dfc04e63382c1e87e7b9607f |
|
06-Aug-2008 |
Owen Anderson <resistor@mac.com> |
Only remap each VNInfo once when doing renumbering.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54420 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 912923925f790427a77781b8a0469fa832c7740d |
|
30-Jul-2008 |
Owen Anderson <resistor@mac.com> |
Value numbers whose def index is a special sentinel value should not be remapped.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54218 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 9382b9310f008a3347e565d76aadda6a97351de9 |
|
30-Jul-2008 |
Owen Anderson <resistor@mac.com> |
More fixes for corner cases when remapping live range indices.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54186 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| a0c032f9b2eeae3a436850eaca54de4c6a5f23b6 |
|
29-Jul-2008 |
Owen Anderson <resistor@mac.com> |
Don't decrement the BB remap when we don't need to.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54173 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| fed90b6d097d50881afb45e4d79f430db66dd741 |
|
28-Jul-2008 |
Dan Gohman <gohman@apple.com> |
Fold the useful features of alist and alist_node into ilist, and
a new ilist_node class, and remove them. Unlike alist_node,
ilist_node doesn't attempt to manage storage itself, so it avoids
the associated problems, including being opaque in gdb.
Adjust the Recycler class so that it doesn't depend on alist_node.
Also, change it to use explicit Size and Align parameters, allowing
it to work when the largest-sized node doesn't have the greatest
alignment requirement.
Change MachineInstr's MachineMemOperand list from a pool-backed
alist to a std::list for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54146 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 0471a79f2000eb1eb4458e7b3dcd254172fae739 |
|
28-Jul-2008 |
Dan Gohman <gohman@apple.com> |
Fix a typo in a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54136 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 0a7615af25542d5e7d824b520f94094cdc8a2179 |
|
26-Jul-2008 |
Owen Anderson <resistor@mac.com> |
Revert my previous patch. In retrospect, this is completely the wrong way to fix this problem.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54072 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 0c525ca72f9cbebf92fc7eabc0f0d9d95cf59c2d |
|
26-Jul-2008 |
Owen Anderson <resistor@mac.com> |
Special cases are needed in renumbering when dealing with renumbering after a PHI has been removed. The interval previously defined
by the PHI needs to be extended to the beginning of its basic block, and the intervals that were inputs need to be trimmed to the end
of their basic blocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54070 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 8d0cc0af5a4b4c08eb74b6e36761651b63816d06 |
|
25-Jul-2008 |
Owen Anderson <resistor@mac.com> |
Properly remap live ranges whose end indices are the end of the function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54061 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d7dcbecdbcf5d7a1efc5ed65ddcc26bb8c20c1e6 |
|
25-Jul-2008 |
Owen Anderson <resistor@mac.com> |
Make the remapping of interval indices (particularly ending indices) more robust.
This is tricky business, and will probably take a few more iterations to get
the last kinks out of it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54043 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 4c8f87038ddc0fbcce751f0e2e7c0e564abca096 |
|
25-Jul-2008 |
Dan Gohman <gohman@apple.com> |
Disable the new aggressive remat logic introduced in 54000; it causes some
regressions, such as PR2595. Also, there is a significant code-quality
issue in SPEC 464.h264ref and a few others.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54014 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6d69ba8a6901c69d78488cbc41f8dbf080618fde |
|
25-Jul-2008 |
Dan Gohman <gohman@apple.com> |
Enable rematerialization of constants using AliasAnalysis::pointsToConstantMemory,
and knowledge of PseudoSourceValues. This unfortunately isn't sufficient to allow
constants to be rematerialized in PIC mode -- the extra indirection is a
complication.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54000 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 7fbad27cfb7298c707e50af10609d463900d7211 |
|
23-Jul-2008 |
Owen Anderson <resistor@mac.com> |
Enable the insertion of empty indices into LiveInterals, thereby making renumbering possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53961 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 496bac5b084474ac33109bad24c1ef94c843e16f |
|
23-Jul-2008 |
Owen Anderson <resistor@mac.com> |
Fix a compile-time regression introduced by my heuristic-changing patch. I forgot
to multiply the instruction count by a constant factor in a few places, which
caused the register allocator to require many more iterations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53959 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| a1566f2e12ce87a5bca30bc0189a0cdbb40136a4 |
|
23-Jul-2008 |
Owen Anderson <resistor@mac.com> |
Change the heuristics used in the coalescer, register allocator, and within
live intervals itself to use an instruction count approximation that is
not affected by inserting empty indices.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53937 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 1ed9922794cda9dbe295e74674b909287e544632 |
|
19-Jul-2008 |
Evan Cheng <evan.cheng@apple.com> |
Fix a memory leak in LiveIntervalAnalysis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53779 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 2c3f7ae3843bdc9dcfe85393e178211976c1f9bd |
|
18-Jul-2008 |
Dan Gohman <gohman@apple.com> |
Re-introduce LeakDetector support for MachineInstrs and MachineBasicBlocks.
Fix a leak that this turned up in LowerSubregs.cpp.
And, comment a leak in LiveIntervalAnalysis.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53746 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| b9890ae3c35ad7d8e49261650d5b98f49f97a705 |
|
12-Jul-2008 |
Evan Cheng <evan.cheng@apple.com> |
Typos.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53504 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 79a796c2b17c7ebd4dd489b5de1078fc2148adba |
|
12-Jul-2008 |
Evan Cheng <evan.cheng@apple.com> |
Fix PR2536: a nasty spiller bug. If a two-address instruction uses a register but the use portion of its live range is not part of its liveinterval, it must be defined by an implicit_def. In that case, do not spill the use. e.g.
8 %reg1024<def> = IMPLICIT_DEF
12 %reg1024<def> = INSERT_SUBREG %reg1024<kill>, %reg1025, 2
The live range [12, 14) are not part of the r1024 live interval since it's defined by an implicit def. It will not conflicts with live interval of r1025. Now suppose both registers are spilled, you can easily see a situation where both registers are reloaded before the INSERT_SUBREG and both target registers that would overlap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53503 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ef0732d25a9882c947984ae3f2afbef5463ba00f |
|
10-Jul-2008 |
Evan Cheng <evan.cheng@apple.com> |
- Change the horrible N^2 isRegReDefinedByTwoAddr. Now callers must supply the operand index of def machineoperand and at most one full scan of non-implicit operands is needed.
- Change local register allocator to use the new isRegReDefinedByTwoAddr instead of reinventing the wheel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53394 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 8e5f2c6f65841542e2a7092553fe42a00048e4c7 |
|
08-Jul-2008 |
Dan Gohman <gohman@apple.com> |
Pool-allocation for MachineInstrs, MachineBasicBlocks, and
MachineMemOperands. The pools are owned by MachineFunctions.
This drastically reduces the number of calls to malloc/free made
during the "Emit" phase of scheduling, as well as later phases
in CodeGen. Combined with other changes, this speeds up the
"instruction selection" phase of CodeGen by 10% in some cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53212 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 9f1c8317a4676945b4961ddb9827ef2412551620 |
|
03-Jul-2008 |
Evan Cheng <evan.cheng@apple.com> |
- Remove calls to copyKillDeadInfo which is an N^2 function. Instead, propagate kill / dead markers as new instructions are constructed in foldMemoryOperand, convertToThressAddress, etc.
- Also remove LiveVariables::instructionChanged, etc. Replace all calls with cheaper calls which update VarInfo kill list.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53097 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6b098dee286cc6fe5a5a476464d92dec5602e406 |
|
26-Jun-2008 |
Owen Anderson <resistor@mac.com> |
Remember which MachineOperand we were processing, so we don't have to scan the list to find it again later.
This speeds up live intervals from 0.37s to 0.30s on instcombine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52745 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c3417609ae6e744a29be6962d4fb7811c0102d17 |
|
21-Jun-2008 |
Evan Cheng <evan.cheng@apple.com> |
Undo spill weight tweak. Need to investigate the performance regressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52572 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 29b039976fd682716c6b8ed1cb7084226b2ad84b |
|
19-Jun-2008 |
Owen Anderson <resistor@mac.com> |
Revert my last patch, which was causing regression test failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52485 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| bdf34bc12bfc39de02c19fa250e83edb5924a6cf |
|
19-Jun-2008 |
Evan Cheng <evan.cheng@apple.com> |
Minor spiller tweak to unfavor reload into load/store instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52477 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6c5e5616687e99329ffa790d2b40ab0f9c2e09f7 |
|
19-Jun-2008 |
Owen Anderson <resistor@mac.com> |
Insert empty slots into the instruction numbering in live intervals, so that we can more easily
add new instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52475 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f26e8557deccd5fb28b56548ca5f7ea25aee31c6 |
|
17-Jun-2008 |
Evan Cheng <evan.cheng@apple.com> |
Live-through live interval is [mbb start, mbb end+1].
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52431 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 31ec841be1f51a60f5b655aa2a008eb68e48c07a |
|
16-Jun-2008 |
Owen Anderson <resistor@mac.com> |
Remove special case handling of empty MBBs now that we assign indices to them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52345 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 1fbb4545d41e65191ae66a7302276fa5424518c5 |
|
16-Jun-2008 |
Owen Anderson <resistor@mac.com> |
Re-enable empty block indexing by default, since it doesn't seem to have any
impact on code quality or compile time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52329 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 355780128986e375c7ac2a75025ac129bb8280bf |
|
16-Jun-2008 |
Owen Anderson <resistor@mac.com> |
Make indexing empty basic blocks an option for the moment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52306 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 8892b6f30792bbc56f40d01a4ae9834a55cf8b1a |
|
16-Jun-2008 |
Owen Anderson <resistor@mac.com> |
Assign indices to empty basic blocks. This will be necessary for StrongPHIElimination in the near future.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52300 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 9c3c2213647e3f1b71722d61875ebac01b65cb91 |
|
06-Jun-2008 |
Evan Cheng <evan.cheng@apple.com> |
Refine stack slot interval weight computation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52040 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c4dc132c8a787fc41b6a162121251234aa618965 |
|
05-Jun-2008 |
Owen Anderson <resistor@mac.com> |
Add a helper for constructing new live ranges that ended from an instruction to the end of its MBB.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52012 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 3f32d65912b4da23793dab618d981be2ce11c331 |
|
04-Jun-2008 |
Evan Cheng <evan.cheng@apple.com> |
Add a stack slot coloring pass. Not yet enabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51934 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e3abb0a858ceaea4a4ffa7c1874be8426d2724bc |
|
02-Jun-2008 |
Owen Anderson <resistor@mac.com> |
Correctly handle removed instructions at the beginning of MBBs when renumbering.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51876 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 7eec0c243320fb2629554681547d7384ea9d0c53 |
|
30-May-2008 |
Owen Anderson <resistor@mac.com> |
Make the renumbering correct in the face of deleted instructions that have been removed from the LiveIntervals maps.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51714 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ec58498dc911065c122a2a54fa9d1338f7fb187f |
|
29-May-2008 |
Bill Wendling <isanbard@gmail.com> |
Remove <iostream>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51704 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| fcc6350ac9b99d6590f5256d26bfa489b4531fb3 |
|
29-May-2008 |
Owen Anderson <resistor@mac.com> |
Revert part of my last patch that I didn't intend to commit yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51694 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 4b5b209679f866d3ac6372f963aa7e9906f9a08b |
|
29-May-2008 |
Owen Anderson <resistor@mac.com> |
Renumbering needs to account for instruction slot offsets when performing lookups in the index maps.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51691 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 745825f431920662e97bdab5c1bcfac62e48c52f |
|
29-May-2008 |
Owen Anderson <resistor@mac.com> |
Remap VNInfo data as well when doing renumbering.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51658 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 80b3ce65e294a28b88c882d44a5e749a2924c9e3 |
|
28-May-2008 |
Owen Anderson <resistor@mac.com> |
Factor the numbering computation into a separate method, and add the slightest attempt at some renumbering logic, which is currently unused.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51652 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 0a891ed7d5875a9ccdb93b4472b0f43947d8289b |
|
24-May-2008 |
Evan Cheng <evan.cheng@apple.com> |
Revert 51440 as it breaks a bunch of PIC tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51513 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| abe93d95e8cc721a5b24b8225dc1a92569276c8a |
|
22-May-2008 |
David Greene <greened@obbligato.org> |
When rewriting defs and uses after spilling, don't set the weight of a
live interval to infinity if the instruction being rewritten is an
original remat def instruction. We were only checking against the clone
of the remat def which doesn't actually appear in the IR at all.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51440 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| b0a6f62c9b2e75fc509d84310a9795ffacbc6796 |
|
20-May-2008 |
Evan Cheng <evan.cheng@apple.com> |
Don't spill dead def.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51305 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 844731a7f1909f55935e3514c9e713a62d67662e |
|
13-May-2008 |
Dan Gohman <gohman@apple.com> |
Clean up the use of static and anonymous namespaces. This turned up
several things that were neither in an anonymous namespace nor static
but not intended to be global.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51017 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 4a3f6c88820a204f80ca0fa3f1f2fe09ca10b02f |
|
06-May-2008 |
Dan Gohman <gohman@apple.com> |
Make several variable declarations static.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50696 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 76249966eec8d318534b416f33f878c6bd01d1ee |
|
16-Apr-2008 |
Evan Cheng <evan.cheng@apple.com> |
Empty basic block should have an empty range.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49800 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 4cce6b4c7882ef0cc993d931b90bf33985c96110 |
|
11-Apr-2008 |
Evan Cheng <evan.cheng@apple.com> |
Use of implicit_def is not part of live interval. Create empty intervals for the uses when the live interval is being spilled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49542 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 7e073baedb8232b9519dbe15ea141ff98ccfe6ae |
|
09-Apr-2008 |
Evan Cheng <evan.cheng@apple.com> |
- More aggressively coalescing away copies whose source is defined by an implicit_def.
- Added insert_subreg coalescing support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49448 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 419852ca8a01aecde4c0e20af6b7bd6450e70f87 |
|
03-Apr-2008 |
Evan Cheng <evan.cheng@apple.com> |
- Treat a live range defined by an implicit_def as a zero-sized one.
- Eliminate an implicit_def when it's being spilled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49166 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 3c75ba858b4e2070993cc1241ba74ead17f647d6 |
|
01-Apr-2008 |
Evan Cheng <evan.cheng@apple.com> |
Re-materialization is for uses only.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49053 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 427f4c106ac14dcf323dc1bbaf1b8040da03c3c7 |
|
01-Apr-2008 |
Evan Cheng <evan.cheng@apple.com> |
It's not safe to fold a load from GV stub or constantpool into a two-address use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49002 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 24d2f8a212f08bf21360122cc00acf2657af91f9 |
|
31-Mar-2008 |
Evan Cheng <evan.cheng@apple.com> |
The support for remat of instructions with a register operand is hackish, to say the least. Since the register operand guaranteed to be PIC base and that it is already live at all uses, we are making sure it will not be spilled after its uses are rematerialized for both performance and correctness reasons.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48976 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 20ccded7dec5b90e58f649f4fb95b166a642b8cb |
|
15-Mar-2008 |
Evan Cheng <evan.cheng@apple.com> |
Remove isImplicitDef TargetInstrDesc flag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48381 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c1f53c742620dd4f2460685477303002bba8a8d8 |
|
11-Mar-2008 |
Evan Cheng <evan.cheng@apple.com> |
Transfer physical register spill info when load / store folding happens.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48246 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 676dd7c80b6f91178452535ac45ca58feb23cc42 |
|
11-Mar-2008 |
Evan Cheng <evan.cheng@apple.com> |
When the register allocator runs out of registers, spill a physical register around the def's and use's of the interval being allocated to make it possible for the interval to target a register and spill it right away and restore a register for uses. This likely generates terrible code but is before than aborting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48218 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6130f66eaae89f8878590796977678afa8448926 |
|
05-Mar-2008 |
Evan Cheng <evan.cheng@apple.com> |
Refactor code. Remove duplicated functions that basically do the same thing as
findRegisterUseOperandIdx, findRegisterDefOperandIndx. Fix some naming inconsistencies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47927 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d36531249a9a9500e516148e7e72d4c0a7a4d0ee |
|
27-Feb-2008 |
Evan Cheng <evan.cheng@apple.com> |
Spiller now remove unused spill slots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47657 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e6d088acc90e422451e098555d383d4d65b6ce6b |
|
26-Feb-2008 |
Bill Wendling <isanbard@gmail.com> |
Rename PrintableName to Name.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47629 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 74ab84c31ef64538a1b56e1f282e49303412ad17 |
|
26-Feb-2008 |
Bill Wendling <isanbard@gmail.com> |
Change "Name" to "AsmName" in the target register info. Gee, a refactoring tool
would have been a Godsend here!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47625 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e83a27516cf5b6cc92ead99c17bbd77bca7ae06b |
|
25-Feb-2008 |
Evan Cheng <evan.cheng@apple.com> |
All remat'ed loads cannot be folded into two-address code. Not just argument loads. This change doesn't really have any impact on codegen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47557 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 79a0c1e46c4f7d8a2a06f4ef3e2c54d883c7fe25 |
|
25-Feb-2008 |
Evan Cheng <evan.cheng@apple.com> |
Correctly determine whether a argument load can be folded into its uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47545 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 249ded3fa8884f91fded869fb6e251b8aebb0376 |
|
23-Feb-2008 |
Evan Cheng <evan.cheng@apple.com> |
Rematerialization logic was overly conservative when it comes to loads from fixed stack slots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47529 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 298bbe82cb390235f7b8ab4bd550feff909e0c3d |
|
23-Feb-2008 |
Evan Cheng <evan.cheng@apple.com> |
If remating a machine instr with virtual register operand, make sure the vr is avaliable at all uses regardless of whether it would be folded.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47526 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| dd3465eed17cdf226bdb465e604dfa851d36029d |
|
23-Feb-2008 |
Evan Cheng <evan.cheng@apple.com> |
Recognize loads of arguments as re-materializable first. Therefore if isReallyTriviallyReMaterializable() returns true it doesn't confuse it as a "normal" re-materializable instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47520 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 313d4b809326f3e04814f94e5b8ae05649d8e0f6 |
|
23-Feb-2008 |
Evan Cheng <evan.cheng@apple.com> |
Fix spill weight updating bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47507 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d70dbb5d627a0408eccf88033143efa62ee0e6c0 |
|
22-Feb-2008 |
Evan Cheng <evan.cheng@apple.com> |
Enable re-materialization of instructions which have virtual register operands if
the definition of the operand also reaches its uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47475 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 063284c001666c0a3906acbe0a26dc7cae5f081c |
|
21-Feb-2008 |
Evan Cheng <evan.cheng@apple.com> |
Clean up some spilling code using MachineRegisterInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47416 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 8dd25288f9c79596e531b32c1b0bdfadcee7ffb9 |
|
18-Feb-2008 |
Roman Levenstein <romix.llvm@googlemail.com> |
New helper function getMBBFromIndex() that given an index in any instruction of an MBB returns a pointer the MBB. Reviewed by Evan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47267 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c8d044e4f779fdcfc5e7d592927740fd8f672a70 |
|
15-Feb-2008 |
Evan Cheng <evan.cheng@apple.com> |
- Removing the infamous r2rMap_ and rep() method. Now the coalescer will update
register defs and uses after each successful coalescing.
- Also removed a number of hacks and fixed some subtle kill information bugs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47167 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e984e504b5f3090ab270cbdab02638ac3a2afb21 |
|
13-Feb-2008 |
Evan Cheng <evan.cheng@apple.com> |
Fix a potential serious problem where kills belonging to the val# defined by a two-address instruction is also on the val# that defines the input.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47057 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6f0d024a534af18d9e60b3ea757376cd8a3a980e |
|
10-Feb-2008 |
Dan Gohman <gohman@apple.com> |
Rename MRegisterInfo to TargetRegisterInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46930 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f2f8c2ae07b7d9bdbf1b89781c573c7af2bd5e1b |
|
08-Feb-2008 |
Evan Cheng <evan.cheng@apple.com> |
Forgot these files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46896 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| b487e7215c4f70f3d98f8fbc0a11eb119afc1f37 |
|
24-Jan-2008 |
Owen Anderson <resistor@mac.com> |
Move some functionality for adding flags to MachineInstr's into methods on MachineInstr rather than LiveVariables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46295 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 8480293f41c11c22762164449e41cd3adb0dd7d8 |
|
10-Jan-2008 |
Evan Cheng <evan.cheng@apple.com> |
Only remat loads from immutable stack slots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45831 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| a07cec9e24a286157541d2337cd66b24cd116586 |
|
10-Jan-2008 |
Evan Cheng <evan.cheng@apple.com> |
Simplify some code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45830 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c95f075c43488234e44b1213dfd762ae0a7509ea |
|
10-Jan-2008 |
Owen Anderson <resistor@mac.com> |
Don't use LiveVariables::VarInfo::DefInst.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45815 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 749c6f6b5ed301c84aac562e414486549d7b98eb |
|
07-Jan-2008 |
Chris Lattner <sabre@nondot.org> |
rename TargetInstrDescriptor -> TargetInstrDesc.
Make MachineInstr::getDesc return a reference instead
of a pointer, since it can never be null.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45695 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f86e1df8770faa76bb277d7c3c27a407869c6f0c |
|
07-Jan-2008 |
Chris Lattner <sabre@nondot.org> |
simplify some code using new predicates
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45689 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 69244300b8a0112efb44b6273ecea4ca6264b8cf |
|
07-Jan-2008 |
Chris Lattner <sabre@nondot.org> |
Rename MachineInstr::getInstrDescriptor -> getDesc(), which reflects
that it is cheap and efficient to get.
Move a variety of predicates from TargetInstrInfo into
TargetInstrDescriptor, which makes it much easier to query a predicate
when you don't have TII around. Now you can use MI->getDesc()->isBranch()
instead of going through TII, and this is much more efficient anyway. Not
all of the predicates have been moved over yet.
Update old code that used MI->getInstrDescriptor()->Flags to use the
new predicates in many places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45674 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6425f8be7263e625c2d7484eb2fb8f6643824f49 |
|
07-Jan-2008 |
Owen Anderson <resistor@mac.com> |
Update CodeGen for MRegisterInfo --> TargetInstrInfo changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45673 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 834f1ce0312e3d00d836f9560cb63182c2c4570f |
|
07-Jan-2008 |
Chris Lattner <sabre@nondot.org> |
rename isLoad -> isSimpleLoad due to evan's desire to have such a predicate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45667 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 67d65bb69d5cad957cbb6d672dc0b4a19c211a42 |
|
04-Jan-2008 |
Bill Wendling <isanbard@gmail.com> |
Don't recalculate the loop info and loop dominators analyses if they're
preserved.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45596 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 84bc5427d6883f73cfeae3da640acd011d35c006 |
|
31-Dec-2007 |
Chris Lattner <sabre@nondot.org> |
Rename SSARegMap -> MachineRegisterInfo in keeping with the idea
that "machine" classes are used to represent the current state of
the code being compiled. Given this expanded name, we can start
moving other stuff into it. For now, move the UsedPhysRegs and
LiveIn/LoveOuts vectors from MachineFunction into it.
Update all the clients to match.
This also reduces some needless #includes, such as MachineModuleInfo
from MachineFunction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45467 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f73823000e2d5d6e1cf65bdf5a107297e18d35fb |
|
30-Dec-2007 |
Chris Lattner <sabre@nondot.org> |
More cleanups for MachineOperand:
- Eliminate the static "print" method for operands, moving it
into MachineOperand::print.
- Change various set* methods for register flags to take a bool
for the value to set it to. Remove unset* methods.
- Group methods more logically by operand flavor in MachineOperand.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45461 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 4ee451de366474b9c228b4e5fa573795a715216d |
|
29-Dec-2007 |
Chris Lattner <sabre@nondot.org> |
Remove attribution from file headers, per discussion on llvmdev.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45418 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6e141fd04897e5eb4925bb6351297170ebd8a756 |
|
13-Dec-2007 |
Evan Cheng <evan.cheng@apple.com> |
Implicit def instructions, e.g. X86::IMPLICIT_DEF_GR32, are always re-materializable and they should not be spilled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44960 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 22f07ffd27d1d721634d502c37267721d2e025cf |
|
11-Dec-2007 |
Evan Cheng <evan.cheng@apple.com> |
Switch over to MachineLoopInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44838 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 041b3f835682588cb63df7e609d726369dd6b7d3 |
|
09-Dec-2007 |
Bill Wendling <isanbard@gmail.com> |
Reverting 44702. It wasn't correct to rename them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44727 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 320c630c1b55e17fa00249d499f974cb1a4238f8 |
|
08-Dec-2007 |
Bill Wendling <isanbard@gmail.com> |
Renaming:
isTriviallyReMaterializable -> hasNoSideEffects
isReallyTriviallyReMaterializable -> isTriviallyReMaterializable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44702 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 33faddc35d5da8451f03edf27f90b901ba529c58 |
|
06-Dec-2007 |
Evan Cheng <evan.cheng@apple.com> |
Turning simple splitting on. Start testing new coalescer heuristics as new llcbeta.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44660 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 5ef3a04b542c4e585276768fa9ca2af698ef5c87 |
|
06-Dec-2007 |
Evan Cheng <evan.cheng@apple.com> |
Fix for PR1831: if all defs of an interval are re-materializable, then it's a preferred spill candiate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44644 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d120ffd26f2715c600b028d4eac9a3c41a9f4653 |
|
05-Dec-2007 |
Evan Cheng <evan.cheng@apple.com> |
MachineInstr can change. Store indexes instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44612 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| adf85906906ebf85c57c333e8209f37ef11a6c99 |
|
05-Dec-2007 |
Evan Cheng <evan.cheng@apple.com> |
If a split live interval is spilled again, remove the kill marker on its last use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44611 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f38d14f03e495ea98ae16bda6febbde276513294 |
|
05-Dec-2007 |
Evan Cheng <evan.cheng@apple.com> |
Clobber more bugs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44610 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| b50bb8cf197709b3f49044740044c06d8f314564 |
|
05-Dec-2007 |
Evan Cheng <evan.cheng@apple.com> |
Fix kill info for split intervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44609 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 018f9b020bb12b731b0a7081578e5f82fb35092d |
|
05-Dec-2007 |
Evan Cheng <evan.cheng@apple.com> |
- Mark last use of a split interval as kill instead of letting spiller track it.
This allows an important optimization to be re-enabled.
- If all uses / defs of a split interval can be folded, give the interval a
low spill weight so it would not be picked in case spilling is needed (avoid
pushing other intervals in the same BB to be spilled).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44601 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 597d10d84fb6b34f7776121404d5ed802b21b2b6 |
|
04-Dec-2007 |
Evan Cheng <evan.cheng@apple.com> |
Discard split intervals made empty due to folding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44565 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 31d43183a40fb721cfe0bb903f147d0d5235c1b9 |
|
03-Dec-2007 |
Evan Cheng <evan.cheng@apple.com> |
Typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44532 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 70306f8348f27c61cfed5a60e2fceac0f29746a2 |
|
03-Dec-2007 |
Evan Cheng <evan.cheng@apple.com> |
Update kill info for uses of split intervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44531 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| aee4af68ae2016afc5b4ec0c430e539c5810a766 |
|
02-Dec-2007 |
Evan Cheng <evan.cheng@apple.com> |
Remove redundant foldMemoryOperand variants and other code clean up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44517 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e3110d0825e6316fd2dd21d6a4e593295cd413f1 |
|
01-Dec-2007 |
Evan Cheng <evan.cheng@apple.com> |
Fix a bug where splitting cause some unnecessary spilling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44482 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e62f97c094dba44e4c259d20135167fa91912eea |
|
01-Dec-2007 |
Evan Cheng <evan.cheng@apple.com> |
Allow some reloads to be folded in multi-use cases. Specifically testl r, r -> cmpl [mem], 0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44479 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| cddbb83ea82e98658d9f530c50a7b9d23249afc2 |
|
30-Nov-2007 |
Evan Cheng <evan.cheng@apple.com> |
Do not fold reload into an instruction with multiple uses. It issues one extra load.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44467 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| cb3c330d39442130d0587208d673ce9c33c7008f |
|
30-Nov-2007 |
Evan Cheng <evan.cheng@apple.com> |
Do not lose rematerialization info when spilling already split live intervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44443 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 1953d0cb7d6d27da3ad067468a7ad6dd7c4fa46e |
|
29-Nov-2007 |
Evan Cheng <evan.cheng@apple.com> |
Fix a major performance issue with splitting. If there is a def (not def/use)
in the middle of a split basic block, create a new live interval starting at
the def. This avoid artifically extending the live interval over a number of
cycles where it is dead. e.g.
bb1:
= vr1204 (use / kill) <= new interval starts and ends here.
...
...
vr1204 = (new def) <= start a new interval here.
= vr1204 (use)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44436 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c3fc7d9ec9b495c8a88cd854247105c296d3aabd |
|
29-Nov-2007 |
Evan Cheng <evan.cheng@apple.com> |
Replace the odd kill# hack with something less fragile.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44434 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 0cbb1164b3227f25f5e5d3681800a8e50e6b9865 |
|
29-Nov-2007 |
Evan Cheng <evan.cheng@apple.com> |
Fixed various live interval splitting bugs / compile time issues.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44428 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| cada245d06959831b90f8c29f92e77beda4b71cb |
|
28-Nov-2007 |
Evan Cheng <evan.cheng@apple.com> |
Recover compile time regression.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44386 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 81a038218171860ee4c382849c647d3dc841fe8b |
|
17-Nov-2007 |
Evan Cheng <evan.cheng@apple.com> |
Live interval splitting:
When a live interval is being spilled, rather than creating short, non-spillable
intervals for every def / use, split the interval at BB boundaries. That is, for
every BB where the live interval is defined or used, create a new interval that
covers all the defs and uses in the BB.
This is designed to eliminate one common problem: multiple reloads of the same
value in a single basic block. Note, it does *not* decrease the number of spills
since no copies are inserted so the split intervals are *connected* through
spill and reloads (or rematerialization). The newly created intervals can be
spilled again, in that case, since it does not span multiple basic blocks, it's
spilled in the usual manner. However, it can reuse the same stack slot as the
previously split interval.
This is currently controlled by -split-intervals-at-bb.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44198 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 5d446265c740c17ed12e693423f0363296670d60 |
|
15-Nov-2007 |
Evan Cheng <evan.cheng@apple.com> |
Fix a thinko in post-allocation coalescer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44166 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c498b0281fa81bc213ad1a1228664d480936c0e6 |
|
14-Nov-2007 |
Evan Cheng <evan.cheng@apple.com> |
Clean up sub-register implementation by moving subReg information back to
MachineOperand auxInfo. Previous clunky implementation uses an external map
to track sub-register uses. That works because register allocator uses
a new virtual register for each spilled use. With interval splitting (coming
soon), we may have multiple uses of the same register some of which are
of using different sub-registers from others. It's too fragile to constantly
update the information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44104 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f2fbca68f868122d6df0bfc9952b4e4c3dfb60b7 |
|
12-Nov-2007 |
Evan Cheng <evan.cheng@apple.com> |
Refactor some code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44010 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 29121848b912b1e062760e5d14c6fbec63b16d9b |
|
07-Nov-2007 |
Evan Cheng <evan.cheng@apple.com> |
Simplify my (il)logic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43819 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| be6781b5d00107f4b60797c3ebdc0aab110487ff |
|
06-Nov-2007 |
Evan Cheng <evan.cheng@apple.com> |
When the allocator rewrite a spill register with new virtual register, it replaces other operands of the same register. Watch out for situations where
only some of the operands are sub-register uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43776 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ab847242976b8e7c495308f8b771ae5d0db8b340 |
|
06-Nov-2007 |
Evan Cheng <evan.cheng@apple.com> |
Fix a bug where a def use operand isn't being detected as a sub-register use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43763 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 5f5f3b6333ed5ecaf40699e8cd0b1aba524cbf0f |
|
05-Nov-2007 |
Evan Cheng <evan.cheng@apple.com> |
Fix PR1187.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43692 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c92da3882ee4e18153bb36fcdf33af393aba8259 |
|
03-Nov-2007 |
Evan Cheng <evan.cheng@apple.com> |
There are times when the coalescer would not coalesce away a copy but the copy
can be eliminated by the allocator is the destination and source targets the
same register. The most common case is when the source and destination registers
are in different class. For example, on x86 mov32to32_ targets GR32_ which
contains a subset of the registers in GR32.
The allocator can do 2 things:
1. Set the preferred allocation for the destination of a copy to that of its source.
2. After allocation is done, change the allocation of a copy destination (if
legal) so the copy can be eliminated.
This eliminates 443 extra moves from 403.gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43662 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| a5bfc97da713ec9e185226d44e6adb4d3087b304 |
|
17-Oct-2007 |
Evan Cheng <evan.cheng@apple.com> |
Apply Chris' suggestions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43069 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 4ca980e7f9ce7b78955307c2d07001a24d3b6bef |
|
17-Oct-2007 |
Evan Cheng <evan.cheng@apple.com> |
Clean up code that calculate MBB live-in's.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43060 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 48ff282dd49197d2b42285b769126ba7991aa93a |
|
12-Oct-2007 |
Evan Cheng <evan.cheng@apple.com> |
Did mean to leave this in. INSERT_SUBREG isn't being coalesced yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42916 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 32dfbeada7292167bb488f36a71a5a6a519ddaff |
|
12-Oct-2007 |
Evan Cheng <evan.cheng@apple.com> |
EXTRACT_SUBREG coalescing support. The coalescer now treats EXTRACT_SUBREG like
(almost) a register copy. However, it always coalesced to the register of the
RHS (the super-register). All uses of the result of a EXTRACT_SUBREG are sub-
register uses which adds subtle complications to load folding, spiller rewrite,
etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42899 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 537d5c27ff64b021ba14e2dc9589bf321dd2327a |
|
08-Oct-2007 |
Evan Cheng <evan.cheng@apple.com> |
Kill cycle of an live range is always the last use index + 1.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42742 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| cb406c25973b4e88a6c10ad839ef1beeb3664715 |
|
03-Oct-2007 |
Dan Gohman <gohman@apple.com> |
Use empty() member functions when that's what's being tested for instead
of comparing begin() and end().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42585 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 92dfe2001e96f6e2b6d327e8816f38033f88b295 |
|
14-Sep-2007 |
Dan Gohman <gohman@apple.com> |
Remove isReg, isImm, and isMBB, and change all their users to use
isRegister, isImmediate, and isMachineBasicBlock, which are equivalent,
and more popular.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41958 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| dd199d29b781bc713462f1255b63d3f153bfd9e9 |
|
06-Sep-2007 |
Evan Cheng <evan.cheng@apple.com> |
Fix a memory leak.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41739 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f3bb2e65d12857f83b273f4ecab013680310bbbc |
|
05-Sep-2007 |
Evan Cheng <evan.cheng@apple.com> |
Use pool allocator for all the VNInfo's to improve memory access locality. This reduces coalescing time on siod Mac OS X PPC by 35%. Also remove the back ptr from VNInfo to LiveInterval and other tweaks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41729 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 34c2a9f57ccf57f341ad27cef59e4c5eb2253e1d |
|
30-Aug-2007 |
Evan Cheng <evan.cheng@apple.com> |
Try fold re-materialized load instructions into its uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41598 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 7ecb38be0a533e7b9c7d3b8e9b5c8a6fa5f6b349 |
|
29-Aug-2007 |
Evan Cheng <evan.cheng@apple.com> |
Change LiveRange so it keeps a pointer to the VNInfo rather than an index.
Changes related modules so VNInfo's are not copied. This decrease
copy coalescing time by 45% and overall compilation time by 10% on siod.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41579 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| bc165e436beb02443abea9736c1b77e2dd7828b6 |
|
16-Aug-2007 |
Evan Cheng <evan.cheng@apple.com> |
Fix some kill info update bugs; add hidden option -disable-rematerialization to turn off remat for debugging.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41118 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 549f27d3070195d6647b796841a5291b4549e8e0 |
|
14-Aug-2007 |
Evan Cheng <evan.cheng@apple.com> |
Re-implement trivial rematerialization. This allows def MIs whose live intervals that are coalesced to be rematerialized.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41060 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 4f8ff168de12eabdeb4b9437bf9402489ecf85cb |
|
11-Aug-2007 |
Evan Cheng <evan.cheng@apple.com> |
Code to maintain kill information during register coalescing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41016 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 24c2e5cf7e926452ea5875d027ec0d24d9c19e39 |
|
08-Aug-2007 |
Evan Cheng <evan.cheng@apple.com> |
Adding kill info to val#.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40925 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 8df786012dc6b875f31ba4152e09c6e0098082ee |
|
08-Aug-2007 |
Evan Cheng <evan.cheng@apple.com> |
- Each val# can have multiple kills.
- Fix some minor bugs related to special markers on val# def. ~0U means
undefined, ~1U means dead val#.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40916 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| a8d94f1315f722de056af03763664b77a5baac26 |
|
08-Aug-2007 |
Evan Cheng <evan.cheng@apple.com> |
- LiveInterval value#'s now have 3 components: def instruction #,
kill instruction #, and source register number (iff the value# is defined by a
copy).
- Now def instruction # is set for every value#, not just for copy defined ones.
- Update some outdated code related inactive live ranges.
- Kill info not yet set. That's next patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40913 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 292da949f6c87d6499425d64d37d7c5870ec57ad |
|
27-Jun-2007 |
Evan Cheng <evan.cheng@apple.com> |
If a livein is not used in the block. It's live through.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37764 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 75611fb4e6ab253be30ac29a2b15e9bf8c1d146e |
|
27-Jun-2007 |
Evan Cheng <evan.cheng@apple.com> |
Fix an obvious bug. Old code only worked for the entry block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37743 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 82a87a01723c095176c6940bcc63d3a7c8007b4b |
|
19-Jun-2007 |
Dan Gohman <gohman@apple.com> |
Replace M_REMATERIALIZIBLE and the newly-added isOtherReMaterializableLoad
with a general target hook to identify rematerializable instructions. Some
instructions are only rematerializable with specific operands, such as loads
from constant pools, while others are always rematerializable. This hook
allows both to be identified as being rematerializable with the same
mechanism.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37644 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c101e95cb6aae1fd6a0727ba4b518a7894ae3089 |
|
14-Jun-2007 |
Dan Gohman <gohman@apple.com> |
Add a target hook to allow loads from constant pools to be rematerialized, and an
implementation for x86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37576 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 2513330de8f8020d15d5bc96640a0957b7c733b9 |
|
08-Jun-2007 |
David Greene <greened@obbligato.org> |
Factor live variable analysis so it does not do register coalescing
simultaneously. Move that pass to SimpleRegisterCoalescing.
This makes it easier to implement alternative register allocation and
coalescing strategies while maintaining reuse of the existing live
interval analysis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37520 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 8dfffd5a079c35e317b843f9f249d2fa36bcd944 |
|
14-May-2007 |
Evan Cheng <evan.cheng@apple.com> |
Only worry about intervening kill if there are more than one live ranges in the interval.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37052 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 2f6cb2b14c5811b154b06163355b3c8bc8b73231 |
|
14-May-2007 |
Evan Cheng <evan.cheng@apple.com> |
Fix for PR1406:
v1 =
r2 = move v1
= op r2<kill>
...
r2 = move v1
= op r2<kill>
Clear the first r2 kill if v1 and r2 are joined.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37050 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 1997473cf72957d0e70322e2fe6fe2ab141c58a6 |
|
03-May-2007 |
Devang Patel <dpatel@apple.com> |
Drop 'const'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36662 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 3e15bf33e024b9df9e89351a165acfdb1dde51ed |
|
02-May-2007 |
Devang Patel <dpatel@apple.com> |
Use 'static const char' instead of 'static const int'.
Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36652 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c718288f4939258a51ec5ae0c5be7b1a05eb6898 |
|
02-May-2007 |
Lauro Ramos Venancio <lauro.venancio@gmail.com> |
Fix build error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36648 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 794fd75c67a2cdc128d67342c6d88a504d186896 |
|
01-May-2007 |
Devang Patel <dpatel@apple.com> |
Do not use typeinfo to identify pass in pass manager.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36632 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| faa510726f4b40aa4495e60e4d341c6467e3fb01 |
|
26-Apr-2007 |
Evan Cheng <evan.cheng@apple.com> |
Rename findRegisterUseOperand to findRegisterUseOperandIdx to avoid confusion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36483 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 24a3cc4c83e5edb25fadf7b8979a26b4451795c6 |
|
25-Apr-2007 |
Evan Cheng <evan.cheng@apple.com> |
Fix for PR1306.
- A register def / use now implicitly affects sub-register liveness but does
not affect liveness information of super-registers.
- Def of a larger register (if followed by a use later) is treated as
read/mod/write of a smaller register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36434 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f44c72817e3a7f517ad796705effb8d59e6a6dfa |
|
18-Apr-2007 |
Evan Cheng <evan.cheng@apple.com> |
VarInfo::UsedBlocks is no longer used. Remove.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36250 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| faf05bbaea5893488dac4eee58700912ddfe28cc |
|
18-Apr-2007 |
Evan Cheng <evan.cheng@apple.com> |
Don't populate TryAgainList when coalescing only physical registers with virtual registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36240 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 20b0abc24fb3fa15098b7cb12c7762fb0770e133 |
|
17-Apr-2007 |
Evan Cheng <evan.cheng@apple.com> |
Copy coalescing change to prevent a physical register from being pin to a
long live interval that has low usage density.
1. Change order of coalescing to join physical registers with virtual
registers first before virtual register intervals become too long.
2. Check size and usage density to determine if it's worthwhile to join.
3. If joining is aborted, assign virtual register live interval allocation
preference field to the physical register.
4. Register allocator should try to allocate to the preferred register
first (if available) to create identify moves that can be eliminated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36218 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 9193514e2e3e599e241220b72bc9add25a80a8fd |
|
04-Apr-2007 |
Evan Cheng <evan.cheng@apple.com> |
Re-materialize all loads from fixed stack slots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35660 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 710216275b93b332bc69f41a1d4553197b64edf8 |
|
04-Apr-2007 |
Evan Cheng <evan.cheng@apple.com> |
Trivially re-materializable instructions have spill weights that are half of what it would be otherwise.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35658 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| bcfd4665b5597ed1ba679584a69080396d68bcf9 |
|
02-Apr-2007 |
Evan Cheng <evan.cheng@apple.com> |
Ugh. Copy coalescer does not update register numbers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35600 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 2f524575396b740b8bdae076b5711e602e82f834 |
|
30-Mar-2007 |
Evan Cheng <evan.cheng@apple.com> |
Bug fix for PR1279. When isDead is propagate by copy coalescing, we keep length
of dead def live interval at 1 to avoid multiple def's targeting the same
register. The previous patch missed a case where the source operand is live-in.
In that case, remove the whole interval.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35512 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 2005a02f321c315c1d6dcbe482024999b48b1c10 |
|
28-Mar-2007 |
Evan Cheng <evan.cheng@apple.com> |
Move rematerialization out of beta.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35419 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d592a28ca1506f2ccd6384679d87cce4b4fd874a |
|
28-Mar-2007 |
Evan Cheng <evan.cheng@apple.com> |
Fix for PR1279. Dead def has a live interval of length 1. Copy coalescing should
not violate that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35396 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ad7ccf34b5de14bd2b9ddc8072d14582a2ce29d9 |
|
27-Mar-2007 |
Evan Cheng <evan.cheng@apple.com> |
Fix for PR1266. Don't mark a two address operand IsKill.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35365 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 2c3535d2a6738d154914a59f272fac45e50b706b |
|
22-Mar-2007 |
Evan Cheng <evan.cheng@apple.com> |
Fix for PR1257. Bug in live range shortening as a result of copy coalescing
where the destination is dead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35252 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 2638e1a6b9e3c0e22b398987e1db99bee81db4fb |
|
20-Mar-2007 |
Evan Cheng <evan.cheng@apple.com> |
First cut trivial re-materialization support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35208 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 757072d954937514585b5c213f01f851d31826a1 |
|
19-Mar-2007 |
Evan Cheng <evan.cheng@apple.com> |
Remove -reduce-joining-phys-regs options. Make it on by default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35165 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 79b098445b93e551dba79aeb9584ee24be0d3dae |
|
19-Mar-2007 |
Evan Cheng <evan.cheng@apple.com> |
Minor bug fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35153 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| cf596c54d4089ef23ce00be04bbb674d3ae2e0a6 |
|
18-Mar-2007 |
Evan Cheng <evan.cheng@apple.com> |
- Merge UsedBlocks info after two virtual registers are coalesced.
- Use distance to closest use to determine whether to abort coalescing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35141 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ba1a3df608a14ca37ca944f4c942c202e919ea80 |
|
17-Mar-2007 |
Evan Cheng <evan.cheng@apple.com> |
Joining a live interval of a physical register with a virtual one can turn out
to be really bad. Once they are joined they are not broken apart. Also, physical
intervals cannot be spilled!
Added a heuristic as a workaround for this. Be careful coalescing with a
physical register if the virtual register uses are "far". Check if there are
uses in the same loop as the source (copy instruction). Check if it is in the
loop preheader, etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35134 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 56fdd7af884a35673fb6dd3e01333960922c3ac2 |
|
15-Mar-2007 |
Evan Cheng <evan.cheng@apple.com> |
Debugging output stuff.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35117 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| a16d4429e49b5406c0af905953b5eae13b9cf47c |
|
03-Mar-2007 |
Evan Cheng <evan.cheng@apple.com> |
Watch out for cases like this:
entry (0x8b056f0, LLVM BB @0x8b01b30, ID#0):
Live Ins: %r0 %r1 %r2 %r3
%reg1032 = tMOVrr %r3<kill>
%reg1033 = tMOVri8 1
%reg1034 = tMOVri8 0
tCMPi8 %reg1029<kill>, 0
tBcc mbb<entry,0x8b06a10>, 0
Successors according to CFG: 0x8b06980 0x8b06a10
entry (0x8b06980, LLVM BB @0x8b01b30, ID#12):
Predecessors according to CFG: 0x8b056f0
%reg1036 = tMOVrr %reg1034<kill>
Successors according to CFG: 0x8b06a10
entry (0x8b06a10, LLVM BB @0x8b01b30, ID#13):
Predecessors according to CFG: 0x8b056f0 0x8b06980
%reg1024<dead> = tMOVrr %reg1030<kill>
...
reg1030 and r1 have already been joined. When reg1024 and reg1030 are joined,
r1 live range from function entry to the tMOVrr instruction are dead. Eliminate
r1 from the livein set of the entry BB, not the BB where the copy is.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34866 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 7b466d048110ec149446bfb9856f79b7b17cf5d3 |
|
02-Mar-2007 |
Evan Cheng <evan.cheng@apple.com> |
Dead live-in detection bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34843 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 8e92b4bae298d079e28f4166d335cc662a50d6cc |
|
01-Mar-2007 |
Evan Cheng <evan.cheng@apple.com> |
Oops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34768 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 88d1f587d2205b4275dc4c0319a5f2d4d1e6fd42 |
|
01-Mar-2007 |
Evan Cheng <evan.cheng@apple.com> |
Track all joined registers and eliminate unneeded kills after all joining are done.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34767 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| edeffb37dc41591b3d3943a5c02c04e55d348524 |
|
26-Feb-2007 |
Evan Cheng <evan.cheng@apple.com> |
Joining an interval with a dead copy instruction. Shorten the live range to the last use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34645 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 48ef398ebd2f2b992c81bebd5159de119ce62c80 |
|
25-Feb-2007 |
Evan Cheng <evan.cheng@apple.com> |
Fix a couple of bugs related IsDead back propagation during coalescing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34595 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 16191f03337645dc1638b7489d71d685e6c07cdd |
|
25-Feb-2007 |
Evan Cheng <evan.cheng@apple.com> |
If the liveinterval of the source instruction has been extended, remove the IsKill marker.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34594 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| da2295e631ae07788f7db53efa3bea6367e7656c |
|
23-Feb-2007 |
Evan Cheng <evan.cheng@apple.com> |
Handle cases when joining live intervals of two virtual registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34534 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 30cac02a925c9d56613711b0e77099cb7252bc9b |
|
23-Feb-2007 |
Evan Cheng <evan.cheng@apple.com> |
Remove unnecessary isKill properties if a live range has been lengthened due to coalescing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34503 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 9b25b8ca24d6df2e097741dcc15016772ee4eda7 |
|
21-Feb-2007 |
Jim Laskey <jlaskey@mac.com> |
Allow for live in registers for eh landing pads.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34475 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 788fb1c103f1d1b8ec7e7f96df01fbfc1a5005d9 |
|
21-Feb-2007 |
Evan Cheng <evan.cheng@apple.com> |
Out of bound reference.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34461 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| b371f457b0ea4a652a9f526ba4375c80ae542252 |
|
19-Feb-2007 |
Evan Cheng <evan.cheng@apple.com> |
Re-apply my liveintervalanalysis changes. Now with PR1207 fixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34428 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| a284cbf667e11660840dc7bae3ee9eeaa3c7cbd2 |
|
19-Feb-2007 |
Reid Spencer <rspencer@reidspencer.com> |
For PR1207:
Revert patches that caused the problem. Evan, please investigate and reapply
when you've discovered the problem.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34399 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| aa7976199c0dfe45f52f327b74fc547ad2c5fffd |
|
17-Feb-2007 |
Evan Cheng <evan.cheng@apple.com> |
- Changes how function livein's are handled, they now have a start index of 0.
- When coalescing a copy MI, if its destination is "dead", propagate the
property to the source MI's destination if there are no intervening uses.
- Detect dead function live-in's and remove them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34383 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 61de82d8853a02fe39c47302432abb70a586704f |
|
15-Feb-2007 |
Evan Cheng <evan.cheng@apple.com> |
Use BitVector instead of vector<bool> which can be extremely slow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34302 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 0c9f92e1ff64ee56724eae444a0442b02f83d0a8 |
|
13-Feb-2007 |
Evan Cheng <evan.cheng@apple.com> |
Allow any MachineBasicBlock (not just the entry block) to have live-in physical
registers. Make sure liveinterval analysis is correctly creating live ranges
for them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34217 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| cd3245ac45c595da96bb768a55cddc356dff55fe |
|
19-Dec-2006 |
Chris Lattner <sabre@nondot.org> |
Eliminate static ctors from Statistics
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32698 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e81561909d128c6e2d8033cb5465a49b2596b26a |
|
07-Dec-2006 |
Bill Wendling <isanbard@gmail.com> |
Changed llvm_ostream et all to OStream. llvm_cerr, llvm_cout, llvm_null, are
now cerr, cout, and NullStream resp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32298 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 51cdcd197268a7abf19b2698fc824e0da3d98049 |
|
07-Dec-2006 |
Evan Cheng <evan.cheng@apple.com> |
MI keeps a ptr of TargetInstrDescriptor, use it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32296 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ac0b6ae358944ae8b2b5a11dc08f52c3ed89f2da |
|
06-Dec-2006 |
Chris Lattner <sabre@nondot.org> |
Detemplatize the Statistic class. The only type it is instantiated with
is 'unsigned'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32279 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 97af751deb9b26fd42fbcee082da9ccc4ded5b45 |
|
02-Dec-2006 |
Jeff Cohen <jeffc@jolt-lang.org> |
Unbreak VC++ build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32113 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ba59a1e453e110f7b84233f07613f9c5d9a39b87 |
|
01-Dec-2006 |
Evan Cheng <evan.cheng@apple.com> |
Match TargetInstrInfo changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32098 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| bdc679d564e67a81792e463f6614b0088f975025 |
|
29-Nov-2006 |
Bill Wendling <isanbard@gmail.com> |
Converted to using llvm streams instead of <iostream>s
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31992 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| beeb77f3ae9e784f45ede2e38f51b9b25eb65913 |
|
16-Nov-2006 |
Bill Wendling <isanbard@gmail.com> |
Don't recompute getNumOperands for each iteration.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31783 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 01352aa1875ee08ae847cce398322042830d92ed |
|
16-Nov-2006 |
Bill Wendling <isanbard@gmail.com> |
Added a new method "CreateNewLiveInterval" which, given a list of
LiveRanges, creates a new LiveInterval from them. The LiveRanges should
have existed already in another LiveInterval, but removed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31780 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 9a1956ae6ad2d4892afbc9f1b97d645d220b6d4a |
|
15-Nov-2006 |
Evan Cheng <evan.cheng@apple.com> |
A register def can be partially dead when the whole register has use(s) but a subreg does not.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31760 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 438f7bc67cf235ccee7e6f7ac7f4ae2186eb8020 |
|
10-Nov-2006 |
Evan Cheng <evan.cheng@apple.com> |
Add implicit def / use operands to MachineInstr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31633 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d6c3422e3126927840683574a658a0deada903f0 |
|
08-Nov-2006 |
Jim Laskey <jlaskey@mac.com> |
Remove redundant <cmath>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31561 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 393ebae0ef7fa72d133bf901a02fcce3b5554ab7 |
|
07-Nov-2006 |
Chris Lattner <sabre@nondot.org> |
Enable improved spilling costs by default. This speeds up viterbi on x86
by 40%, FreeBench/fourinarow by 20%, and many other programs 10-25%.
On PPC, this speeds up fourinarow by 18%, and probably other things as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31504 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 7902c75331fa8f38fc8380f5573d935c0d149ef5 |
|
07-Nov-2006 |
Jim Laskey <jlaskey@mac.com> |
Use correct value for float HUGH_VAL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31500 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| b75a663707e40a6b72bf404e7fbf08f7d9e1eb90 |
|
07-Nov-2006 |
Chris Lattner <sabre@nondot.org> |
Add a new llcbeta option. This speeds up viterbi from 12.34 to 8.76s on
X86. If happy, I'll enable this by default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31493 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| bf105c842450d3308d024be203ddd533f37051ec |
|
03-Nov-2006 |
Evan Cheng <evan.cheng@apple.com> |
Proper check for two-addressness.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31408 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 3ed469ccd7b028a030b550d84b7336d146f5d8fa |
|
02-Nov-2006 |
Reid Spencer <rspencer@reidspencer.com> |
For PR786:
Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting
fall out by removing unused variables. Remaining warnings have to do with
unused functions (I didn't want to delete code without review) and unused
variables in generated code. Maintainers should clean up the remaining
issues when they see them. All changes pass DejaGnu tests and Olden.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31380 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 428b92eb83b457b71d29d1d4b7900d36a0ce9a53 |
|
15-Sep-2006 |
Chris Lattner <sabre@nondot.org> |
Keep track of the start of MBB's in a separate map from instructions. This
is faster and is needed for future improvements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30383 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 2926869b4a083fc951484de03a9867eabf81e880 |
|
05-Sep-2006 |
Chris Lattner <sabre@nondot.org> |
Fix a long-standing wart in the code generator: two-address instruction lowering
actually *removes* one of the operands, instead of just assigning both operands
the same register. This make reasoning about instructions unnecessarily complex,
because you need to know if you are before or after register allocation to match
up operand #'s with the target description file.
Changing this also gets rid of a bunch of hacky code in various places.
This patch also includes changes to fold loads into cmp/test instructions in
the X86 backend, along with a significant simplification to the X86 spill
folding code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30108 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| dffb2e83ed2546226d09c40aa43524e2392322da |
|
04-Sep-2006 |
Chris Lattner <sabre@nondot.org> |
Correct fix for a crasher on functions with live in values
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30099 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 5277e4304e9559c13aa42b1d056e828f8f75ff08 |
|
04-Sep-2006 |
Chris Lattner <sabre@nondot.org> |
Hack around a regression I introduced yesterday
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30098 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6b128bdc58a496e9f08e4d09416330320761baff |
|
03-Sep-2006 |
Chris Lattner <sabre@nondot.org> |
Avoid beating on the mi2i map when we know the answer already.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30066 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| fbecc5a593da0a5b4d9ff6be63c5558060e31e43 |
|
03-Sep-2006 |
Chris Lattner <sabre@nondot.org> |
minor speedup
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30065 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 1acb17cb8392dce33079fe45f383944ec6616757 |
|
02-Sep-2006 |
Chris Lattner <sabre@nondot.org> |
Iteration is required for some cases, even if they don't occur in crafty.
Restore it, which re-fixes X86/2006-08-21-ExtraMovInst.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30050 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f21f0205b5dec61f165518887f54e01ab5aab13c |
|
02-Sep-2006 |
Chris Lattner <sabre@nondot.org> |
When joining two intervals where the RHS is really simple, use a light-weight
method for joining the live ranges instead of the fully-general one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30049 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 8a67f6e848244b00dd706a7e01079d1b39c07731 |
|
01-Sep-2006 |
Chris Lattner <sabre@nondot.org> |
Pull some code out of a hot recursive function because the common case doesn't
need recursion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30015 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 238416c99b2a2baea06ac05a5964bbbbf660f3dd |
|
01-Sep-2006 |
Chris Lattner <sabre@nondot.org> |
Reserve space in the ValueNumberInfo vector. This speeds up live interval
analysis 16% on crafty.
Wrap long lines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30012 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| a2a8f0919d6d000e894f31b8cb416b4fbe17bb07 |
|
01-Sep-2006 |
Chris Lattner <sabre@nondot.org> |
Iterative coallescing doesn't buy us anything (we get identical results on
crafty with and without it). Removing it speeds up live intervals 6%.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30010 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 2ebfa0c61823c5d7528b1b3235106c30cb8d53f1 |
|
31-Aug-2006 |
Chris Lattner <sabre@nondot.org> |
Add a special case that speeds up coallescing a bit, but not enough.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29996 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| bfe180af9eef1cf767f61f501ca325fcce2ae7ce |
|
31-Aug-2006 |
Chris Lattner <sabre@nondot.org> |
Delete copies as they are coallesced instead of waiting until the end.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29995 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 91725b75852443923b419fd23215194cfc65dd88 |
|
31-Aug-2006 |
Chris Lattner <sabre@nondot.org> |
avoid calling the virtual isMoveInstr method endlessly by caching its results.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29994 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ba256037ced5606d5cea8a1676b21eaf91d924de |
|
31-Aug-2006 |
Chris Lattner <sabre@nondot.org> |
Fix a compiler crash bootstrapping llvm-gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29989 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6d8fbef015ff836bcb8f64f52c49805e43f8ea9f |
|
30-Aug-2006 |
Chris Lattner <sabre@nondot.org> |
Teach the coallescer to coallesce live intervals joined by an arbitrary
number of copies, potentially defining live ranges that appear to have
differing value numbers that become identical when coallsced. Among other
things, this fixes CodeGen/X86/shift-coalesce.ll and PR687.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29968 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 5d8925c7c506a54ebdfb0bc93437ec9f602eaaa0 |
|
28-Aug-2006 |
Chris Lattner <sabre@nondot.org> |
Eliminate RegisterAnalysis. RegisterPass now does all that is necessary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29921 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c9d94d12900bd0d2bd482ef31f8f1deb3ffafa23 |
|
27-Aug-2006 |
Chris Lattner <sabre@nondot.org> |
typo fix
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29910 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e7f729b42b54fa751ba3524e1c597aad6d3ec3d7 |
|
26-Aug-2006 |
Chris Lattner <sabre@nondot.org> |
Simplifications to liveinterval analysis, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29896 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c114b2cad7293d98686d380273085f5c32966b52 |
|
26-Aug-2006 |
Chris Lattner <sabre@nondot.org> |
Completely change the way that joining with physregs is implemented. This
paves the way for future changes, increases coallescing opportunities (in
theory, not witnessed in practice), and eliminates the really expensive
LiveIntervals::overlapsAliases method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29890 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f7da2c7b0c6293c268881628fc351bed7763f1f4 |
|
25-Aug-2006 |
Chris Lattner <sabre@nondot.org> |
Take advantage of the recent improvements to the liveintervals set (tracking
instructions which define each value#) to simplify and improve the coallescer.
In particular, this patch:
1. Implements iterative coallescing.
2. Reverts an unsafe hack from handlePhysRegDef, superceeding it with a
better solution.
3. Implements PR865, "coallescing" away the second copy in code like:
A = B
...
B = A
This also includes changes to symbolically print registers in intervals
when possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29862 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| be4f88a8b8bb3311e0dc4cde8533763d7923c3ea |
|
22-Aug-2006 |
Chris Lattner <sabre@nondot.org> |
Improve the LiveInterval class to keep track of which machine instruction
defines each value# tracked by the interval. This will be used to improve
coallescing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29830 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 8222b2de224647e4ca8ac36adff87b2c93daf7cc |
|
22-Aug-2006 |
Chris Lattner <sabre@nondot.org> |
Print physreg names symbolically in dumps
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29805 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 7c10b0d2c9b4d637edf27548c104b7199b0e3578 |
|
22-Aug-2006 |
Chris Lattner <sabre@nondot.org> |
Print debug info as:
*** Register mapping ***
reg 1024 -> %reg1028
reg 1026 -> EAX
reg 1027 -> %reg1028
instead of:
*** Register mapping ***
reg 1024 -> reg 1028
reg 1026 -> reg 15
reg 1027 -> reg 1028
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29803 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| cd4317efcf334be10d9a98008a1445d6e12a7712 |
|
21-Jul-2006 |
Jim Laskey <jlaskey@mac.com> |
Eliminate data relocations by using NULL instead of global empty list.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29250 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ed41f1bb1981a98eea63f00c5988cf62bbdd7c59 |
|
20-Jul-2006 |
Andrew Lenharth <andrewl@lenharth.org> |
Reduce number of exported symbols
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29220 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d74ea2bbd8bb630331f35ead42d385249bd42af8 |
|
24-May-2006 |
Chris Lattner <sabre@nondot.org> |
Patches to make the LLVM sources more -pedantic clean. Patch provided
by Anton Korobeynikov! This is a step towards closing PR786.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28447 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 647c15e58ed4c3fda81041d401ca7547639958dc |
|
12-May-2006 |
Evan Cheng <evan.cheng@apple.com> |
Backing out fix for PR770. Need to re-apply it after live range splitting is possible
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28236 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 993141402f57b4d4cbb7f8a3113f19c61688f9b7 |
|
11-May-2006 |
Evan Cheng <evan.cheng@apple.com> |
Set weight of zero length intervals to infinite to prevent them from being
spilled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28220 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e73701df947d23c65e96abc71a3be40ad77058ee |
|
09-May-2006 |
Evan Cheng <evan.cheng@apple.com> |
PR 770 - permit coallescing of registers in subset register classes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28197 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e53f4a055f74bded20d6129b4724ddd17fd199f6 |
|
04-May-2006 |
Chris Lattner <sabre@nondot.org> |
Move some methods out of MachineInstr into MachineOperand
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28102 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 35f2705e3de4600c3621b883eed9b22e4607ddf4 |
|
01-May-2006 |
Chris Lattner <sabre@nondot.org> |
Remove previous patch, which wasn't quite right.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28039 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 200370fb5617a1719f0054804b412469ce486ebd |
|
30-Apr-2006 |
Evan Cheng <evan.cheng@apple.com> |
Local spiller kills a store if the folded restore is turned into a copy.
But this is incorrect if the spilled value live range extends beyond the
current BB.
It is currently controlled by a temporary option -spiller-check-liveout.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28024 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 2c2c6c61f100bc7c3df873b11203fcea1b5e18fe |
|
23-Jan-2006 |
Chris Lattner <sabre@nondot.org> |
Add explicit #includes of <iostream>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25515 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 60d97d4f55b6bd51179eba3388c95d5ec6942ec8 |
|
10-Jan-2006 |
Chris Lattner <sabre@nondot.org> |
Minor cleanup, no functionality change for current targets
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25173 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 3b9db830f7f0ed33af13459be3fd60ebe01a13ca |
|
03-Jan-2006 |
Chris Lattner <sabre@nondot.org> |
Change a variable from being an iterator to a raw MachineInstr*, to make
GDB use tolerable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25064 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c60e6020c0dd1260b0d60835e2ab823f97a4b810 |
|
26-Oct-2005 |
Chris Lattner <sabre@nondot.org> |
Fix some spello's pointed out by Gabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24019 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| aa51a484e188ecb8d3e4b6ac852c553a4aacc89a |
|
21-Oct-2005 |
Chris Lattner <sabre@nondot.org> |
Make the coallescer a bit smarter, allowing it to join more live ranges.
For example, we can now join things like [0-30:0)[31-40:1)[52-59:2)
with [40:60:0) if the 52-59 range is defined by a copy from the 40-60 range.
The resultant range ends up being [0-30:0)[31-60:1).
This fires a lot through-out the test suite (e.g. shrinking bc from
19492 -> 18509 machineinstrs) though most gains are smaller (e.g. about
50 copies eliminated from crafty).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23866 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 3c3fe462f7978b429ecdd71750c26be25c3d1335 |
|
21-Sep-2005 |
Chris Lattner <sabre@nondot.org> |
Expose the LiveInterval interfaces as public headers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23400 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ceb0a5223180c01c6ea6e26ae9556b3797b47f02 |
|
09-Sep-2005 |
Chris Lattner <sabre@nondot.org> |
remove debugging code *slaps head*
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23294 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| b11443dc8458b0ba72d484dacf99dffa2e8d3b51 |
|
09-Sep-2005 |
Chris Lattner <sabre@nondot.org> |
When spilling a live range that is used multiple times by one instruction,
only add a reload live range once for the instruction. This is one step
towards fixing a regalloc pessimization that Nate notice, but is later undone
by the spiller (so no code is changed).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23293 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| dc6e2e0a5f3ee81d85922790aaedc80740820a8b |
|
07-Sep-2005 |
Chris Lattner <sabre@nondot.org> |
Fix a bug that Tzu-Chien Chiu noticed: live interval analysis does NOT
preserve livevar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23259 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 5ab6f5fe666d0e3403d9b777324d1a1999118153 |
|
02-Sep-2005 |
Chris Lattner <sabre@nondot.org> |
Teach live intervals to not crash on dead livein regs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23206 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ab4b66d4c279e8cd9e448687020fc838e7881dbc |
|
24-Aug-2005 |
Chris Lattner <sabre@nondot.org> |
Simplify this code by using higher-level LiveVariables methods
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22989 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| cef21c354408980eab7922c35af7523b08b5bec9 |
|
28-Jul-2005 |
Chris Lattner <sabre@nondot.org> |
Fix debug info to not print out recently freed memory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22529 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 8e7a70976deee78a84099b916591d40f7a1cdc34 |
|
28-Jul-2005 |
Chris Lattner <sabre@nondot.org> |
Print symbolic register names in debug dumps
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22528 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 38135af219c48a8626d6af34a92e7e8bb957c81f |
|
14-May-2005 |
Chris Lattner <sabre@nondot.org> |
Print the symbolic register name in a register allocator debug dump.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22002 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 712ad0c36dcfacb30620c793a6ffe4e80bd5d569 |
|
13-May-2005 |
Chris Lattner <sabre@nondot.org> |
allow a virtual register to be associated with live-in values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21927 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7e |
|
22-Apr-2005 |
Misha Brukman <brukman+llvm@gmail.com> |
Remove trailing whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21420 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 8e7d87b22867cc5add0c2e9fda4fddb340128403 |
|
09-Apr-2005 |
Chris Lattner <sabre@nondot.org> |
there is no need to remove this instruction, linscan does it already as it
removes noop moves.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21183 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 799a919dbc03d8451434a1f3afc6fe571212d19c |
|
09-Apr-2005 |
Chris Lattner <sabre@nondot.org> |
Adjust live intervals to support a livein set
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21182 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e97568c3c41e6de2b726d2cd99724659650e9614 |
|
10-Mar-2005 |
Chris Lattner <sabre@nondot.org> |
I didn't mean to check this in. :(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20555 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f768bba43f5c036039851d2fcca8212edca18467 |
|
10-Mar-2005 |
Chris Lattner <sabre@nondot.org> |
Allow the live interval analysis pass to be a bit more aggressive about
numbering values in live ranges for physical registers.
The alpha backend currently generates code that looks like this:
vreg = preg
...
preg = vreg
use preg
...
preg = vreg
use preg
etc. Because vreg contains the value of preg coming in, each of the
copies back into preg contain that initial value as well.
In the case of the Alpha, this allows this testcase:
void "foo"(int %blah) {
store int 5, int *%MyVar
store int 12, int* %MyVar2
ret void
}
to compile to:
foo:
ldgp $29, 0($27)
ldiq $0,5
stl $0,MyVar
ldiq $0,12
stl $0,MyVar2
ret $31,($26),1
instead of:
foo:
ldgp $29, 0($27)
bis $29,$29,$0
ldiq $1,5
bis $0,$0,$29
stl $1,MyVar
ldiq $1,12
bis $0,$0,$29
stl $1,MyVar2
ret $31,($26),1
This does not seem to have any noticable effect on X86 code.
This fixes PR535.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20536 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 28696bee024805a6b191cfe12e1a24784dae8aa7 |
|
08-Jan-2005 |
Chris Lattner <sabre@nondot.org> |
Silence warnings from VS
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19386 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ce9653ce449f1409815547e1bf60abcd1332d2c9 |
|
07-Dec-2004 |
Reid Spencer <rspencer@reidspencer.com> |
For PR387:\
Make only one print method to avoid overloaded virtual warnings when \
compiled with -Woverloaded-virtual
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18589 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ad3c74fc9b52b652859807580c8e40b67394d689 |
|
26-Oct-2004 |
Chris Lattner <sabre@nondot.org> |
Reduce usage of MRegisterInfo::getRegClass
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17238 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 7a36ae8b0103088328e3a4992ac08b3dce312248 |
|
25-Oct-2004 |
Chris Lattner <sabre@nondot.org> |
Patch to support MSVC better, contributed by Morten Ofstad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17215 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| bec6a9ea1281a0b3b37aece91ab0df21e086af61 |
|
02-Oct-2004 |
Chris Lattner <sabre@nondot.org> |
When a virtual register is folded into an instruction, keep track of whether
it was a use, def, or both. This allows us to be less pessimistic in our
analysis of them. In practice, this doesn't make a big difference, but it
doesn't hurt either.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16632 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ef0543689ff90337af358add9dad74a1e23e9d74 |
|
01-Oct-2004 |
Chris Lattner <sabre@nondot.org> |
Pretty print a bit nicer :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16628 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 477e4555de341c5de780de3720d6f115ec133c4e |
|
30-Sep-2004 |
Chris Lattner <sabre@nondot.org> |
There is no need to call MachineInstr::print directly, just send the MI& to an ostream.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16613 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 70ca358b7d540b6061236ddf757085042873c12c |
|
30-Sep-2004 |
Chris Lattner <sabre@nondot.org> |
* Wrap some comments to 80 cols
* Add const_iterator stuff
* Add a print method, which means that I can now call dump() from the
debugger.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16612 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 2c4f7b5faaeedd97058ec4cfa44177124c42b9e1 |
|
09-Sep-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Grow the map on entry so that we don't crash if joinIntervals never
runs (if coalescing is disabled for example).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16259 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 5d0d1e350a30772fd70798b5733bb060febd7b0d |
|
08-Sep-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Use a DenseMap for mapping reg->reg. This improves the LiveInterval
analysis running time from 2.7869secs to 2.5226secs on 176.gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16244 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 08a6c7614be9793754b17930ba619e875aef9585 |
|
03-Sep-2004 |
Misha Brukman <brukman+llvm@gmail.com> |
Order #includes alphabetically, local .h files first.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16153 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 20aa474f8fbebde588edc101b90e834df28ce4ce |
|
03-Sep-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Fixes to make LLVM compile with vc7.1.
Patch contributed by Paolo Invernizzi!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16152 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 551ccae044b0ff658fe629dd67edd5ffe75d10e8 |
|
02-Sep-2004 |
Reid Spencer <rspencer@reidspencer.com> |
Changes For Bug 352
Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16137 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d19e2901c1b79d287d01079659684f3a4951a69e |
|
31-Aug-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Minor code clarity changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16123 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d8d26b3268acf7f157028f0cb60a545b185e8905 |
|
27-Aug-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Only update LiveVariables if it is available. addIntervalsForSpills
runs after the initial run of the live interval analysis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16075 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 5327801fb87e3eda52a33f82e6211181030ecb93 |
|
27-Aug-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Use newly added API in MRegisterInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16060 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d0d0a1a08f9e27f4c950e846e0a21c3c3f11e40c |
|
24-Aug-2004 |
Chris Lattner <sabre@nondot.org> |
Fix a bug in a previous checkin of mine, correcting
Regression.CodeGen.Generic.2004-04-09-SameValueCoalescing.llx and the
code size problem.
This bug prevented us from doing most register coallesces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16031 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 3bba026994f01b2b5bdcdf4b628fa93a8ae9d6ef |
|
16-Aug-2004 |
Chris Lattner <sabre@nondot.org> |
Reduce usage of MRegisterInfo::getRegClass
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15784 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 706515727c6d024015fffded2b3109a4f0ac5299 |
|
04-Aug-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Clean up whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15490 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 1a8ea01f01b30e28e4e3ac0e3a344c4a4d579270 |
|
04-Aug-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Convert indentation to 2 spaces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15489 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c25b55a5b237772bbd7cc55988d3ca0ec569aede |
|
25-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
Fix the sense of joinable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15196 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 62d4e16a059b5bbcd49b1bcab0d4854e784821f9 |
|
25-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
Fix a bug where we incorrectly value numbered the first PHI definition the
same as the PHI use. This is not correct as the PHI use value is different
depending on which branch is taken. This fixes espresso with aggressive
coallescing, and perhaps others.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15189 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c83e40d1b6582155286f1044623d544dea20202e |
|
25-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
Add debugging output for joining assignments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15187 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| a1613db62fec94845aa8306232fb665273615bad |
|
24-Jul-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Change std::map<unsigned, LiveInterval*> into a std::map<unsigned,
LiveInterval>. This saves some space and removes the pointer
indirection caused by following the pointer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15167 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 060913cce42d8b746194c7ebd8b19c9789a03909 |
|
24-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
whoops, didn't mean to remove this
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15157 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 4df98e546dd0cca214df661ae1072e1a3f6eff98 |
|
24-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
Completely eliminate the intervals_ list. instead, the r2iMap_ maintains
ownership of the intervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15155 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 7ac2d3146a196fa0120c579ecd2ddd69652ad230 |
|
24-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
Big change to compute logical value numbers for each LiveRange added to an
Interval. This generalizes the isDefinedOnce mechanism that we used before
to help us coallesce ranges that overlap. As part of this, every logical
range with a different value is assigned a different number in the interval.
For example, for code that looks like this:
0 X = ...
4 X += ...
...
N = X
We now generate a live interval that contains two ranges: [2,6:0),[6,?:1)
reflecting the fact that there are two different values in the range at
different positions in the code.
Currently we are not using this information at all, so this just slows down
liveintervals. In the future, this will change.
Note that this change also substantially refactors the joinIntervalsInMachineBB
method to merge the cases for virt-virt and phys-virt joining into a single
case, adds comments, and makes the code a bit easier to follow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15154 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f35fef7060c465dd7b578bf6339a18e8a8911888 |
|
23-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
More minor changes:
* Inline some functions
* Eliminate some comparisons from the release build
This is good for another .3 on gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15144 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| a3b8b5c0e0a1d0942288568b2012592184ca67c5 |
|
23-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
Rename LiveIntervals.(cpp|h) -> LiveIntervalAnalysis.(cpp|h)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15135 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| fb449b9ea5a37fb411aee7d42f6a76119602288d |
|
23-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
Pull the LiveRange and LiveInterval classes out of LiveIntervals.h (which
will soon be renamed) into their own file. The new file should not emit
DEBUG output or have other side effects. The LiveInterval class also now
doesn't know whether its working on registers or some other thing.
In the future we will want to use the LiveInterval class and friends to do
stack packing. In addition to a code simplification, this will allow us to
do it more easily.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15134 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ec2bc645053e9051ada01fac6a555df17a85c91d |
|
23-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
Improve comments a bit
Use an explicit LiveRange class to represent ranges instead of an std::pair.
This is a minor cleanup, but is really intended to make a future patch simpler
and less invasive.
Alkis, could you please take a look at LiveInterval::liveAt? I suspect that
you can add an operator<(unsigned) to LiveRange, allowing us to speed up the
upper_bound call by quite a bit (this would also apply to other callers of
upper/lower_bound). I would do it myself, but I still don't understand that
crazy liveAt function, despite the comment. :)
Basically I would like to see this:
LiveRange dummy(index, index+1);
Ranges::const_iterator r = std::upper_bound(ranges.begin(),
ranges.end(),
dummy);
Turn into:
Ranges::const_iterator r = std::upper_bound(ranges.begin(),
ranges.end(),
index);
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15130 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| fe1630b43ef3e9506fde9780108c2af0431393e9 |
|
23-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
Force coallescing of live ranges that have a single definition, even if they
interfere. Because these intervals have a single definition, and one of them
is a copy instruction, they are always safe to merge even if their lifetimes
interfere. This slightly reduces the amount of spill code, for example on
252.eon, from:
12837 spiller - Number of loads added
7604 spiller - Number of stores added
5842 spiller - Number of register spills
18155 liveintervals - Number of identity moves eliminated after coalescing
to:
12754 spiller - Number of loads added
7585 spiller - Number of stores added
5803 spiller - Number of register spills
18262 liveintervals - Number of identity moves eliminated after coalescing
The much much bigger win would be to merge intervals with multiple definitions
(aka phi nodes) but this is not that day.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15124 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e8850f476eba1b839b24bd926bab2dfd8b452307 |
|
22-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
Fix broken -debug printing
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15115 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d3014edc51af0751e7f05180e9f48162433fb4ba |
|
22-Jul-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Sorting is now handled by both linearscan and iterative scan so live
intervals need not be sorted anymore. Removing this redundant step
improves LiveIntervals running time by 5% on 176.gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15106 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6beef3e1a085a0f3693fa6eff1b0b702e2c246e7 |
|
22-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
That funny 2-address lowering pass can also cause multiple definitions,
fortunately, they are easy to handle if we know about them. This patch fixes
some serious pessimization of code produced by the linscan register allocator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15092 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 7848e68c1635ccba5a08d55314d4e5aed5ab54b9 |
|
21-Jul-2004 |
Brian Gaeke <gaeke@uiuc.edu> |
These files don't need to include <iostream> since they include "Support/Debug.h".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15089 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6bd23c083290ab0f68388397f213323f386fc36e |
|
20-Jul-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Remove unneeded functor. LiveInterval has a < operator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15031 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 8640f4e666086cc6e7447dc164105e428e6cb81a |
|
19-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
Fix a bug that occurs when the last instruction in a range is dead
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15005 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| cc0d156f7bca0811aade0a95b0e7419176383c90 |
|
19-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
When joining intervals, join intervals in deeply nested loops first. This
is a simple change, but seems to improve code a little. For example, on
256.bzip2, we went from 75.0s -> 73.33s (2% speedup).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15004 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 1c5c0444f1326b58cf05015651f36f2b04ca322d |
|
19-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
Split joinIntervals into two methods
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15003 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 74de8b1b26b12fda3364382946e519a2e37b6709 |
|
19-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
There is no need to store the MBB along with the MI any more, we can now
ask instructions for their parent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14998 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 472405e0dc05f6fb8c09af00713ff893fff25b94 |
|
19-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
Simplify the interface to LiveVariables::addVirtualRegister(Killed|Dead)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14997 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 8ea13c6233d7dded98d933b435f2727a38149a70 |
|
19-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
Two changes, both very significant:
* vreg <-> vreg joining now works, enable it unconditionally when joining
is enabled (which is the default).
* Fix a serious pessimization of spill code where we were saying that a
spilled DEF operand was live into the subsequent instruction. This allows
for substantially better code when spilling starts to happen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14993 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 57eb15e316c8f186b988dea7f8962ffa827d4a71 |
|
19-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
See comments. The live intervals were not coming out of the spiller in sorted
order, causing the inactive list in the linearscan list to get unsorted, which
basically fuxored everything up severely.
These seems to fix the joiner, so with more testing I will enable it by default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14992 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6097d13b2a624048dbe02e39e2dfb23bfa269b64 |
|
19-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
remove the mbbi2mbbMap_, which was just keeping track of mbb order anyway.
Heavily refactor handleVirtualRegisterDef, adding comments and making it more
efficient. It is also much easier to follow and convince ones self that it is
correct :)
Add -debug output to the joine, showing the result of joining the intervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14989 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e1b9536d546b78f8cffc7efbb2ff75d7e15f9749 |
|
17-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
It looks like physref->virtreg joining is working fine. Enable it by default
but make virtreg->virtreg joining stay off by default
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14916 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 80b27ced2d5e6340bb62d75a8c6f23198e69a1af |
|
09-Jul-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Fix typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14720 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 607baea7d2f3155a4ca391a1d9fb1f4b0178ebb2 |
|
09-Jul-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Improve code comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14719 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 3877652e683cc85dd3cd512d6af0accbce84cad5 |
|
07-Jul-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Disable coalescing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14655 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 5de868b0b2daf145d7991bc9b3bf25807bcc7ca7 |
|
06-Jul-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Do not crash when joining two intervals of registers of different
classes: just ignore that move. Thanks to Vladimir Prus who found the
bug!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14644 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 230b4fb8a0d7b2b0e0d533cf37b05a084d140a5c |
|
02-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
Revert patches 1.79 and 1.80 which had to do with dead MBB's. Now that they
don't exist, we don't have to pretend to handle them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14567 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 8490f9c92e354fd9cd242bae89b24e6c59e5c794 |
|
01-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
Now that MachineFunction/MachineBasicBlock keep a mapping of blocks to ID #'s
use them instead of a local LiveVariables numbering
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14523 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 8ba9771549bcff6109ad45ff3944a1b6c3c54b46 |
|
01-Jul-2004 |
Chris Lattner <sabre@nondot.org> |
Start using MBB numbers directly instead of going through the live variables
map.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14518 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 91a350ddd13de9c972c583b4a1ad3ac114c117e7 |
|
29-Jun-2004 |
Chris Lattner <sabre@nondot.org> |
In line with the previous patch, do not assert out if analyzing a dead basic block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14475 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 59850a8f8f94c59e8894edcbf8629a5d88624dc6 |
|
29-Jun-2004 |
Chris Lattner <sabre@nondot.org> |
Do not dereference end iterators. It hurts when you do that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14474 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| b140762a45d21aaed054f15adaff0fc2274d939d |
|
25-Jun-2004 |
Tanya Lattner <tonic@nondot.org> |
Made a fix so that you can print out MachineInstrs that belong to a MachineBasicBlock that is not yet attached to a MachineFunction. This change includes changing the third operand (TargetMachine) to a pointer for the MachineInstr::print function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14389 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 418da55c89c9ba355b51dceecb16f4388ef35119 |
|
21-Jun-2004 |
Chris Lattner <sabre@nondot.org> |
Rename Interval class to LiveInterval to avoid conflicting with the already
existing llvm::Interval class.
Patch contributed by Vladimir Prus!
http://mail.cs.uiuc.edu/pipermail/llvmbugs/2004-June/000710.html
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14281 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 9bcdcd17c7219dbc68de2f11ca2de86471c8c390 |
|
02-Jun-2004 |
Chris Lattner <sabre@nondot.org> |
Adjust to new TargetMachine interface
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13956 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6924063bf2fdcc455bcb87807ab452ab7fc69773 |
|
30-May-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Pull Interval class out of LiveIntervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13910 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 26f5a69e52b64e035d26c135979a39b39fd6ba3e |
|
30-May-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
When spilling an register, introduce a new temporary for each of its
spills. This allows for more flexibility when allocating registers for
spill code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13907 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f717a0569886be297903078bcd779e84254d0010 |
|
29-May-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Remove defs vector from live intervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13892 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| feab248c93eeb1028ac014fa9546a02013dd3396 |
|
08-May-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Remove unneeded header
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13416 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| a19eedeb7aafc418ef2f017b8215ceafa7f1a76c |
|
06-May-2004 |
Chris Lattner <sabre@nondot.org> |
numeric_limits::infinity() apparently does not work on all systems. As a
workaround, use the C HUGE_VAL macro instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13377 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 015959ee38e4fd4a920f6b0065c50e524762f580 |
|
01-May-2004 |
Chris Lattner <sabre@nondot.org> |
Operate on the Machine CFG instead of on the LLVM CFG
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13302 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6e4d0d6546774d21a8f4f55c591df42557ca6c62 |
|
12-Apr-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Fix bug introduced in previous commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12872 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 43b61f724ef68810c63fc54c99e88f9b278f05c0 |
|
12-Apr-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Correctly compute spill weights
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12869 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e633352fd57d54612f8986978b6fe3cb9ba2f620 |
|
12-Apr-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Print def lists a bit more compactly
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12866 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 9a8b490735d216435862a3d52e669357f165550f |
|
09-Apr-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Add definition list to each live interval.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12791 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 39354c99a158685d8bc91b0836c283e936a29cb2 |
|
14-Mar-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Change MRegisterInfo::foldMemoryOperand to return the folded
instruction to make the API more flexible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12386 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 5f37502bfbadfa65de087627bd67fd58bb03725c |
|
01-Mar-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Add the long awaited memory operand folding support for linear scan
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12058 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 71e353ed3530a5da48c3dd3257c410f6c4ce2e3e |
|
26-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Uncomment assertions that register# != 0 on calls to
MRegisterInfo::is{Physical,Virtual}Register. Apply appropriate fixes
to relevant files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11882 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 98e17cf54345a4e9ab0ded690cdb41c0cd219c8e |
|
23-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Move LiveIntervals.h up to be the first included header
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11721 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| a2f6a408dc6616713b2e63425cf8cf7792c66c80 |
|
23-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Move LiveIntervals.h to lib/CodeGen since it shouldn't be exposed to other parts of the compiler
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11719 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 0f338a1e8cd8167d22e2d011e0bec7eaadc6154a |
|
22-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Print basic block boundaries in machine instruction debug output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11704 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 7200c6b82acb8401048a2bc8a423f23b48db6731 |
|
22-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Abstract merging of ranges away from number of slots per instruction.
Also make it less aggressive as the current implementation breaks in
some cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11696 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d6f6d1a80daf89ad0bddc4b8335e1b2ae1ec3410 |
|
21-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Make 'fold' statistic's description the same in both allocators.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11687 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 007726ca6f64ea74c20ddb90093ee8d6801733af |
|
20-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Some more statistics improvements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11676 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| df158c7e3f09c05805e129fc2e8e661ccbc21f54 |
|
20-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Disambiguate statistic descriptions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11675 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| cea44711203cfcb3b18528401ac1ad170677ebfe |
|
20-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Rename statistic and add another one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11674 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 39a0d5c1123cfe4ddf826690b6744cc7248e3149 |
|
20-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Too many changes in one commit:
1. LiveIntervals now implement a 4 slot per instruction model. Load,
Use, Def and a Store slot. This is required in order to correctly
represent caller saved register clobbering on function calls,
register reuse in the same instruction (def resues last use) and
also spill code added later by the allocator. The previous
representation (2 slots per instruction) was insufficient and as a
result was causing subtle bugs.
2. Fixes in spill code generation. This was the major cause of
failures in the test suite.
3. Linear scan now has core support for folding memory operands. This
is untested and not enabled (the live interval update function does
not attempt to fold loads/stores in instructions).
4. Lots of improvements in the debugging output of both live intervals
and linear scan. Give it a try... it is beautiful :-)
In summary the above fixes all the issues with the recent reserved
register elimination changes and get the allocator very close to the
next big step: folding memory operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11654 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 23c114fd3bec342ac1a2a45801b892d6b4517afc |
|
18-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Be more agressive when joining ranges.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11575 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 99d9923608bfd0feff288d667c3e4f94c4132c26 |
|
18-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Fix overly conservative spill interval computation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11574 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 355a724bd8366b982950ac913b0589d40eaf379b |
|
17-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Fix spilled interval update. It was too conservative.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11516 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 843b160a2040b3ec4d3452678450afa11704c473 |
|
15-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Eliminate the use of spill (reserved) registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11476 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6ab5c15962cb16402713747f1fbe85e001318e7d |
|
14-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Use std::numeric_limits<float>::infinity() instead of
std::numeric_limits<float>::max() for weighting preallocated
intervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11427 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| be766c72464116a445a02b542a450c4274bab5d0 |
|
13-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Remove getAllocatedRegNum(). Use getReg() instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11393 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| c0b9dc5be79f009d260edb5cd5e1d8346587aaa2 |
|
12-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Change MachineBasicBlock's vector of MachineInstr pointers into an
ilist of MachineInstr objects. This allows constant time removal and
insertion of MachineInstr instances from anywhere in each
MachineBasicBlock. It also allows for constant time splicing of
MachineInstrs into or out of MachineBasicBlocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11340 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 1cbe4d0ad0888e50858cca83cf2a0d3083709513 |
|
10-Feb-2004 |
Chris Lattner <sabre@nondot.org> |
Do not use MachineOperand::isVirtualRegister either!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11283 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 0b8cb2bc47a6bee59c8c3f46d4cc047badf7f8ac |
|
05-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Change live interval representation. Machine instructions now have two
slots each. As a concequence they get numbered as 0, 2, 4 and so
on. The first slot is used for operand uses and the second for
defs. Here's an example:
0: A = ...
2: B = ...
4: C = A + B ;; last use of A
The live intervals should look like:
A = [1, 5)
B = [3, x)
C = [5, y)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11141 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| ad48cd6327df13ad4b8530733bbf115224bf9562 |
|
05-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
We don't need to scan the blocks that we are live-in on every
access. Rather we only have to do it on the creation of the interval.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11135 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| b606eaca1b149ef74c578a6a11d65339c125edab |
|
02-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Should be more careful. The previously applied change made all counts
outside of loops = 0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11085 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| b180e3e92ba8783b1f93995c98dfe1634c5f9205 |
|
01-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Change string for joined intervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11057 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| b0b0ebaac09a930f7cbd302255fa23c5d8107e66 |
|
01-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Change xor to ^.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11054 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 676cf8cb1d613d626f826a45b44658ae35f58c7c |
|
01-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Missed one silly assert :-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11048 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 01e74a2aab64c5901a62d9ba9e1c263759929390 |
|
01-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Simplify joinIntervals() code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11047 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 4f67b8664889d9e93b452a9a5f099d41d1bd235a |
|
01-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Use MRegisterInfo::isPhysicalRegister and
MRegisterInfo::isVirtualRegister.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11045 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 52220f61bba91ab787d4cc0aee47df4e2ca55c04 |
|
01-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Apply final part of Chris' patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11040 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 02ba13c9897ae2b19f9201e57460d7ee2b753a0b |
|
01-Feb-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Be a little smarter on the way we handle physical register defs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11038 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 08cec00588ec1a8fa85b208555f006d7396ae7a4 |
|
31-Jan-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Merge safe parts from last night's buggy commit. These do not break
any test cases :-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11032 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 97017de1872e08ffcdde2fccdfd399647c1ccc4a |
|
31-Jan-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Optimize liveAt() and overlaps(). We now use a binary search instead
of a linear search to find the first range for comparisons. This cuts
down the linear scan register allocator running time by a factor of 3
in 254.perlbmk and by a factor of 2.2 in 176.gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11030 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 4d46e1e521c0df1990ea50f8146d22bd77ea71a6 |
|
31-Jan-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Revert last night's changes as they broke some tests. Will remerge parts of the patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11029 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 32bdd4ea65f58e3227176b9a5a43013fb13f06a5 |
|
31-Jan-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Several performance enhancements and cleanups from Chris.
Simplification of LiveIntervals::Interval::overlaps() and addition of
examples to overlaps() and liveAt() to make them clearer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11028 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 79b0c3f0b9d91bbda354a2c6f22b6578655a5143 |
|
23-Jan-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Fix failing test cases with joined live intervals. It turns out that
when joining we need to check if we overlap with the second interval
or any of its aliases.
Also make joining intervals the default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10973 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e88280a4224730dcf8076e0d9a20973c5761fd06 |
|
23-Jan-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Add option to join live intervals. Two intervals are joined if there
is a move between two registers, at least one of the registers is
virtual and the two live intervals do not overlap.
This results in about 40% reduction in intervals, 30% decrease in the
register allocators running time and a 20% increase in peephole
optimizations (mainly move eliminations).
The option can be enabled by passing -join-liveintervals where
appropriate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10965 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 1075ecd32f53b7bc12e4a8f6917d7d1aebd4672a |
|
22-Jan-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Revert previous change. The code was correct...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10957 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| e1a210777d4950fa47817e61a81118351c9a2311 |
|
22-Jan-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Fix incorrect negatives in LiveIntervals::Interval::liveAt().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10956 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 1893a05b28bf03e0ded1ed651cc1d71c7854ad93 |
|
16-Jan-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Add asserts to previous change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10893 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f5f1689ed28025cef601034052ef9c214797e8af |
|
16-Jan-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Use a list instead of a vector to store intervals. This will be needed
when we join intervals and one of the two will need to be removed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10892 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| d6e40a6cbced8265334ee0375f5996098dfdccb2 |
|
14-Jan-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Properly update #intervals statistic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10847 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 9739736b94b1116be2043e05567aa8899593ab29 |
|
14-Jan-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Fix bug in LiveIntervals::Interval::overlaps and
LiveIntervals::Interval::liveAt. Both were considering the live ranges
closed in the end, when they are actually open.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10835 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| af25473d5e99e0c0968746e12d8827e4b712bd31 |
|
13-Jan-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Fix miscomputation of live intervals. The catch is that registers can
be dead at the defining instruction but can only be killed in
subsequent ones.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10833 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 1a119e24106810310825f44c7bfd232d3272e639 |
|
13-Jan-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Remove allocatable registers vector. It is already provided by
LiveVariables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10830 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| a3a6524965416647883bc0b78ff6f18fb3f7b5fc |
|
13-Jan-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Cleanup debugging output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10824 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 63841bc85d15ca0ce1b3208084f4262f3d33ef21 |
|
13-Jan-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Fix output of live intervals to show correctly its closed, open
ranges, i.e. [a,b)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10822 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 19b6486d3891c8a02a301aa1b44348a420772fcf |
|
13-Jan-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Correctly compute live variable information for physical registers
when an implicitely defined register is later used by an alias. For example:
call foo
%reg1024 = mov %AL
The call implicitely defines EAX but only AL is used. Before this fix
no information was available on AL. Now EAX and all its aliases except
AL get defined and die at the call instruction whereas AL lives to be
killed by the assignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10813 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 80b378cf7c3dce77029dc3118e1f63bc6d389da1 |
|
07-Jan-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Change implementation of LiveIntervals::overlap(). This results in a
30-50% decrease in running time of the linear scan register allocator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10707 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 63caedf046bcce1f2981c5305d297c2b1890bfc7 |
|
05-Jan-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Remove simple coalescing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10695 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 26bfc08b80c904c71487ac1ab49a8b3a15a8d3e9 |
|
28-Dec-2003 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Add coalescing to register allocator. A hint is added to each interval
which denotes the register we would like to be assigned to (virtual or
physical). In register allocation, if this hint exists and we can map
it to a physical register (it is either a physical register or it is a
virtual register that already got assigned to a physical one) we use
that register if it is available instead of a random one in the free
pool.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10634 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 7a40eaaceec0af76d5b97610f3d4e7a47a19d245 |
|
24-Dec-2003 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Do a separate pass to compute spill weights because doing it inline
with live intervals was missing registers that were used before they
were defined (in the arbitrary order live intervals numbers
instructions).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10603 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 056063e2645d86b11a441abfff4bfd96dc4edf8c |
|
22-Dec-2003 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Fix crash when compiling twolf.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10584 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 6b4edbaaf9021e0434f0ce0c3724eb43ed41b770 |
|
21-Dec-2003 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Change weight into a float so that we can take into account the
nesting level when computing it. Right now the allocator uses:
w = sum_over_defs_uses( 10 ^ nesting level );
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10569 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 169cfd01964fc03828a7f2cad5d710890fbb08d8 |
|
21-Dec-2003 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Add support for inactive intervals. This effectively reuses registers
for live ranges that fall into assigned registers' holes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10566 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 4c080863de86448d905beab27686da823b6d44c1 |
|
18-Dec-2003 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Remove TwoAddressInstruction from the public headers and add an ID
instead, since this pass doesn't expose any state to its users.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10520 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| a71e05acdd7c6a8e815db46b5fb6dc1d87826aab |
|
18-Dec-2003 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Modify linear scan register allocator to use the two-address
instruction pass. This also fixes all remaining bugs for this new
allocator to pass all tests under test/Programs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10515 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| 43f692f90f6b27304570e1b1807542dff4b8e847 |
|
18-Dec-2003 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
When a variable is killed and redifined in a basic block only one
killing instruction is tracked. This causes the LiveIntervals to
create bogus intervals. The workaound is to add a range to the
interval from the redefinition to the end of the basic block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10510 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| dd2cc65f34f9b7bfda1cd0c42becedfc361d46f8 |
|
18-Dec-2003 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Handle multiple virtual register definitions gracefully.
Move some of the longer LiveIntervals::Interval method out of the
header and add debug information to them. Fix bug and simplify range
merging code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10509 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
|
| f6f91bf6680668990ff3804b14cf05beedc56ec4 |
|
15-Dec-2003 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Change preserve all claim to just preserve live variables and phielimination.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10469 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
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| 4d7af65903cbc858464362e70a6adf499982ec8a |
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14-Dec-2003 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Change interface of MachineOperand as follows:
a) remove opIsUse(), opIsDefOnly(), opIsDefAndUse()
b) add isUse(), isDef()
c) rename opHiBits32() to isHiBits32(),
opLoBits32() to isLoBits32(),
opHiBits64() to isHiBits64(),
opLoBits64() to isLoBits64().
This results to much more readable code, for example compare
"op.opIsDef() || op.opIsDefAndUse()" to "op.isDef()" a pattern used
very often in the code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10461 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
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| 4c214d2bf0da92a7973bb7902c0d6d055b1fa991 |
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13-Dec-2003 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Ignore non-allocatable physical registers in live interval analysis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10449 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
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| 9435eda6993944e74419d2f586fdd25635293760 |
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13-Dec-2003 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Handle explicit physical register defs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10445 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
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| b27ef248f579b354aab434f63c417ab1103e47e2 |
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05-Dec-2003 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Move operator<<(std::ostream&, const LiveInterval&) out of the header file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10290 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
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| 91ceae6d2060367a5212b15b26faa804ea0448a5 |
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05-Dec-2003 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Sort live intervals by increasing start point.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10289 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
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| ff0cbe175df40e0d2b36e59c6fb72f211f1cba4c |
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20-Nov-2003 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Merging the linear scan register allocator in trunk. It currently passes most tests under test/Programs/SingleSource/Benchmarks/Shootout so development will continue on trunk. The allocator is not enabled by default. You will need to pass -regallo=linearscan to lli or llc to use it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10103 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
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