| 4a0a18af4a9a47466a6077a158387ba4f57bf636 |
|
01-Sep-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Permit remat of partial register defs when it is safe.
An instruction may define part of a register where the other bits are
undefined. In that case, it is safe to rematerialize the instruction.
For example:
%vreg2:ssub_0<def> = VLDRS <cp#0>, 0, pred:14, pred:%noreg, %vreg2<imp-def>
The extra <imp-def> operand indicates that the instruction does not read
the other parts of the virtual register, so a remat is safe.
This patch simply allows multiple def operands for the virtual register.
It is MI->readsVirtualRegister() that determines if we depend on a
previous value so remat is impossible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138953 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 9d548d0343774636e72713d678a078c8e808ed29 |
|
01-Sep-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Prevent remat of partial register redefinitions.
An instruction that redefines only part of a larger register can never
be rematerialized since the virtual register value depends on the old
value in other parts of the register.
This was fixed for the inline spiller in r138794. This patch fixes the
problem for all register allocators, and includes a small test case.
<rdar://problem/10032939>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138944 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| cb08f18d5b88ffa4ba8efd7cac0b8820d6f0ec71 |
|
23-Aug-2011 |
Evan Cheng <evan.cheng@apple.com> |
Follow up to Jim's r138278. This fixes commuteInstruction so it handles two-address instructions correctly. I'll let Jim add a test case. :-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138289 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 2df3f58a0b3937f2cbd76d3417d2905ca86cf8fa |
|
08-Aug-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Hoist hasLoadFromStackSlot and hasStoreToStackSlot.
These the methods are target-independent since they simply scan the
memory operands. They can live in TargetInstrInfoImpl.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137063 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| e837dead3c8dc3445ef6a0e2322179c57e264a13 |
|
28-Jun-2011 |
Evan Cheng <evan.cheng@apple.com> |
- Rename TargetInstrDesc, TargetOperandInfo to MCInstrDesc and MCOperandInfo and
sink them into MC layer.
- Added MCInstrInfo, which captures the tablegen generated static data. Chang
TargetInstrInfo so it's based off MCInstrInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134021 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| fa226bccaa90c520cac154df74069bbabb976eab |
|
02-Jun-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Use TRI::has{Sub,Super}ClassEq() where possible.
No functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132455 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 08c5a347a05e73a34c70ec8b694b1e89b96a6bf5 |
|
21-Apr-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Permit remat when a virtual register has multiple defs.
TII::isTriviallyReMaterializable() shouldn't depend on any properties of the
register being defined by the instruction. Rematerialization is going to create
a new virtual register anyway.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129882 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| c8bfd1d78ff9a307d1d4cb57cce4549b538e60f4 |
|
21-Jan-2011 |
Andrew Trick <atrick@apple.com> |
Convert -enable-sched-cycles and -enable-sched-hazard to -disable
flags. They are still not enable in this revision.
Added TargetInstrInfo::isZeroCost() to fix a fundamental problem with
the scheduler's model of operand latency in the selection DAG.
Generalized unit tests to work with sched-cycles.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123969 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 9fe2009956fc40f3aea46fb3c38dcfb61c4aca46 |
|
20-Jan-2011 |
Evan Cheng <evan.cheng@apple.com> |
Sorry, several patches in one.
TargetInstrInfo:
Change produceSameValue() to take MachineRegisterInfo as an optional argument.
When in SSA form, targets can use it to make more aggressive equality analysis.
Machine LICM:
1. Eliminate isLoadFromConstantMemory, use MI.isInvariantLoad instead.
2. Fix a bug which prevent CSE of instructions which are not re-materializable.
3. Use improved form of produceSameValue.
ARM:
1. Teach ARM produceSameValue to look pass some PIC labels.
2. Look for operands from different loads of different constant pool entries
which have same values.
3. Re-implement PIC GA materialization using movw + movt. Combine the pair with
a "add pc" or "ldr [pc]" to form pseudo instructions. This makes it possible
to re-materialize the instruction, allow machine LICM to hoist the set of
instructions out of the loop and make it possible to CSE them. It's a bit
hacky, but it significantly improve code quality.
4. Some minor bug fixes as well.
With the fixes, using movw + movt to materialize GAs significantly outperform the
load from constantpool method. 186.crafty and 255.vortex improved > 20%, 254.gap
and 176.gcc ~10%.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123905 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| c36b7069b42bece963b7e6adf020353ce990ef76 |
|
08-Jan-2011 |
Evan Cheng <evan.cheng@apple.com> |
Do not model all INLINEASM instructions as having unmodelled side effects.
Instead encode llvm IR level property "HasSideEffects" in an operand (shared
with IsAlignStack). Added MachineInstrs::hasUnmodeledSideEffects() to check
the operand when the instruction is an INLINEASM.
This allows memory instructions to be moved around INLINEASM instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123044 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 2da8bc8a5f7705ac131184cd247f48500da0d74e |
|
24-Dec-2010 |
Andrew Trick <atrick@apple.com> |
Various bits of framework needed for precise machine-level selection
DAG scheduling during isel. Most new functionality is currently
guarded by -enable-sched-cycles and -enable-sched-hazard.
Added InstrItineraryData::IssueWidth field, currently derived from
ARM itineraries, but could be initialized differently on other targets.
Added ScheduleHazardRecognizer::MaxLookAhead to indicate whether it is
active, and if so how many cycles of state it holds.
Added SchedulingPriorityQueue::HasReadyFilter to allowing gating entry
into the scheduler's available queue.
ScoreboardHazardRecognizer now accesses the ScheduleDAG in order to
get information about it's SUnits, provides RecedeCycle for bottom-up
scheduling, correctly computes scoreboard depth, tracks IssueCount, and
considers potential stall cycles when checking for hazards.
ScheduleDAGRRList now models machine cycles and hazards (under
flags). It tracks MinAvailableCycle, drives the hazard recognizer and
priority queue's ready filter, manages a new PendingQueue, properly
accounts for stall cycles, etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122541 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 6b1207267f01877ff9b351786c902cb2ecd354c0 |
|
08-Dec-2010 |
Andrew Trick <atrick@apple.com> |
Generalize PostRAHazardRecognizer so it can be used in any pass for
both forward and backward scheduling. Rename it to
ScoreboardHazardRecognizer (Scoreboard is one word). Remove integer
division from the scoreboard's critical path.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121274 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 93a95ae8a9d8eb19dc0d90281473be2fb1c05a17 |
|
21-Sep-2010 |
Chris Lattner <sabre@nondot.org> |
force clients of MachineFunction::getMachineMemOperand to provide a
MachinePointerInfo, propagating the type out a level of API. Remove
the old MachineFunction::getMachineMemOperand impl.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114393 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 3ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1 |
|
10-Sep-2010 |
Evan Cheng <evan.cheng@apple.com> |
Teach if-converter to be more careful with predicating instructions that would
take multiple cycles to decode.
For the current if-converter clients (actually only ARM), the instructions that
are predicated on false are not nops. They would still take machine cycles to
decode. Micro-coded instructions such as LDM / STM can potentially take multiple
cycles to decode. If-converter should take treat them as non-micro-coded
simple instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113570 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 134d8eec8789184c7a7290ee101ca3d6f62f384a |
|
22-Jul-2010 |
Chris Lattner <sabre@nondot.org> |
remove the JIT "NeedsExactSize" feature and supporting logic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109167 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 9fac4159ddf65d90ebcccd80a0ba513cd8e95be1 |
|
13-Jul-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Don't add memory operands to storeRegToStackSlot / loadRegFromStackSlot results,
they already have one.
This fixes the himenobmtxpa miscompilation on ARM.
The PostRA scheduler got confused by the double memoperand and hoisted a stack
slot load above a store to the same slot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108219 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 744b3a5acdbd4d0fac9c6a7c9ad702502cc3cc37 |
|
11-Jul-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Remove TargetInstrInfo::copyRegToReg entirely.
Targets must now implement TargetInstrInfo::copyPhysReg instead. There is no
longer a default implementation forwarding to copyRegToReg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108095 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 1f32340d95ac480bfc74bcfd00fd5cffbe078652 |
|
09-Jul-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Automatically fold COPY instructions into stack load/store.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108012 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.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/TargetInstrInfoImpl.cpp
|
| 3651d92d91062ea4b1ee8b2a88eca03bd39e1968 |
|
08-Jul-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Add TargetInstrInfo::copyPhysReg hook and use it from LowerSubregs.
This target hook is intended to replace copyRegToReg entirely, but for now it
calls copyRegToReg.
Any remaining calls to copyRegToReg wil be replaced by COPY instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107854 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 4d54e5b2dd4a3d3bed38ff9c7aa57fc66adb5855 |
|
22-Jun-2010 |
Evan Cheng <evan.cheng@apple.com> |
Tail merging pass shall not break up IT blocks. rdar://8115404
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106517 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 86050dc8cc0aaea8c9dfeb89de02cafbd7f48d92 |
|
19-Jun-2010 |
Evan Cheng <evan.cheng@apple.com> |
Allow ARM if-converter to be run after post allocation scheduling.
- This fixed a number of bugs in if-converter, tail merging, and post-allocation
scheduler. If-converter now runs branch folding / tail merging first to
maximize if-conversion opportunities.
- Also changed the t2IT instruction slightly. It now defines the ITSTATE
register which is read by instructions in the IT block.
- Added Thumb2 specific hazard recognizer to ensure the scheduler doesn't
change the instruction ordering in the IT block (since IT mask has been
finalized). It also ensures no other instructions can be scheduled between
instructions in the IT block.
This is not yet enabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106344 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 774bc882fdb3bbb0558075360c6e5bc510a0bdad |
|
14-Jun-2010 |
Evan Cheng <evan.cheng@apple.com> |
- Do away with SimpleHazardRecognizer.h. It's not used and offers little value.
- Rename ExactHazardRecognizer to PostRAHazardRecognizer and move its header to include to allow targets to extend it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105959 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 44acc24117b1a9eafb7b9b993731ca0115569ea2 |
|
12-Jun-2010 |
Evan Cheng <evan.cheng@apple.com> |
Code formatting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105861 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 9edf7deb37f0f97664f279040fa15d89f32e23d9 |
|
03-Jun-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Slightly change the meaning of the reMaterialize target hook when the original
instruction defines subregisters.
Any existing subreg indices on the original instruction are preserved or
composed with the new subreg index.
Also substitute multiple operands mentioning the original register by using the
new MachineInstr::substituteRegister() function. This is necessary because there
will soon be <imp-def> operands added to non read-modify-write partial
definitions. This instruction:
%reg1234:foo = FLAP %reg1234<imp-def>
will reMaterialize(%reg3333, bar) like this:
%reg3333:bar-foo = FLAP %reg333:bar<imp-def>
Finally, replace the TargetRegisterInfo pointer argument with a reference to
indicate that it cannot be NULL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105358 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.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/TargetInstrInfoImpl.cpp
|
| 506049f29f4f202a8e45feb916cc0264440a7f6d |
|
03-Mar-2010 |
Evan Cheng <evan.cheng@apple.com> |
- Change MachineInstr::isIdenticalTo to take a new option that determines whether it should skip checking defs or at least virtual register defs. This subsumes part of the TargetInstrInfo::isIdentical functionality.
- Eliminate TargetInstrInfo::isIdentical and replace it with produceSameValue. In the default case, produceSameValue just checks whether two machine instructions are identical (except for virtual register defs). But targets may override it to check for unusual cases (e.g. ARM pic loads from constant pools).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97628 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 30ac0467ced4627a9b84d8a1d3ca5e8706ddad63 |
|
07-Jan-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Add Target hook to duplicate machine instructions.
Some instructions refer to unique labels, and so cannot be trivially cloned
with CloneMachineInstr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92873 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 7896c9f436a4eda5ec15e882a7505ba482a2fcd0 |
|
03-Dec-2009 |
Chris Lattner <sabre@nondot.org> |
improve portability to avoid conflicting with std::next in c++'0x.
Patch by Howard Hinnant!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90365 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 39aa7251a27735479305b3e7a9629b9c2a6abcc3 |
|
16-Nov-2009 |
Evan Cheng <evan.cheng@apple.com> |
Check if subreg index is zero.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88899 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| d57cdd5683ea926e489067364fb7ffe5fd5d35ee |
|
14-Nov-2009 |
Evan Cheng <evan.cheng@apple.com> |
- Change TargetInstrInfo::reMaterialize to pass in TargetRegisterInfo.
- If destination is a physical register and it has a subreg index, use the
sub-register instead.
This fixes PR5423.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88745 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 78e5c1140adc926e7c004748c1c912bfddd875b4 |
|
07-Nov-2009 |
Evan Cheng <evan.cheng@apple.com> |
- Add TargetInstrInfo::isIdentical(). It's similar to MachineInstr::isIdentical
except it doesn't care if the definitions' virtual registers differ. This is
used by machine LICM and other MI passes to perform CSE.
- Teach Thumb2InstrInfo::isIdentical() to check two t2LDRpci_pic are identical.
Since pc relative constantpool entries are always different, this requires it
it check if the values can actually the same.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86328 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| ff89dcb06fbd103373436e2d0ae85f252fae2254 |
|
18-Oct-2009 |
Evan Cheng <evan.cheng@apple.com> |
-Revert parts of 84326 and 84411. Distinquishing between fixed and non-fixed
stack slots and giving them different PseudoSourceValue's did not fix the
problem of post-alloc scheduling miscompiling llvm itself.
- Apply Dan's conservative workaround by assuming any non fixed stack slots can
alias other memory locations. This means a load from spill slot #1 cannot
move above a store of spill slot #2.
- Enable post-alloc scheduling for x86 at optimization leverl Default and above.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84424 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 20270c909357e5e501cac1f5393430dfacfc57d8 |
|
18-Oct-2009 |
Evan Cheng <evan.cheng@apple.com> |
Only fixed stack objects and spill slots should be get FixedStack PseudoSourceValue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84411 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 6553155172a2e74feff1253837daa608123de54a |
|
17-Oct-2009 |
Evan Cheng <evan.cheng@apple.com> |
Revert 84315 for now. Re-thinking the patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84321 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| bf125583f8bd8196a34921276add7f304b7c1433 |
|
17-Oct-2009 |
Evan Cheng <evan.cheng@apple.com> |
Rename getFixedStack to getStackObject. The stack objects represented are not
necessarily fixed. Only those will negative frame indices are "fixed."
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84315 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 3a6b9eb868f579b945aa8ec8fadf65e4dd913555 |
|
12-Oct-2009 |
Dale Johannesen <dalej@apple.com> |
Revert the kludge in 76703. I got a clean
bootstrap of FSF-style PPC, so there is some
reason to believe the original bug (which was
never analyzed) has been fixed, probably by
82266.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83871 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.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/TargetInstrInfoImpl.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/TargetInstrInfoImpl.cpp
|
| 28f02fdd76f4efc05d14649e0eec90ce8e71e17e |
|
21-Sep-2009 |
Dan Gohman <gohman@apple.com> |
Change MachineMemOperand's alignment value to be the alignment of
the base pointer, without the offset. This matches MemSDNode's
new alignment behavior, and holds more interesting information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82473 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
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| fc6ad402fb267cba1625801444aad30da43d383a |
|
22-Jul-2009 |
Evan Cheng <evan.cheng@apple.com> |
Let each target determines whether a machine instruction is dead. If true, that allows late codeine passes to delete it.
This is considered a workaround. The problem is some targets are not modeling side effects correctly. PPC is apparently one of those. This patch allows ppc llvm-gcc to bootstrap on Darwin. Once we find out which instruction definitions are wrong, we can remove the PPCInstrInfo workaround.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76703 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.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/TargetInstrInfoImpl.cpp
|
| 34c75093f085c7958fa3bd31f3c4a50942d83505 |
|
11-Jul-2009 |
Evan Cheng <evan.cheng@apple.com> |
Use findCommutedOpIndices to find the operands to commute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75312 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 261ce1d5f89155d2e6f914f281db2004c89ee839 |
|
10-Jul-2009 |
Evan Cheng <evan.cheng@apple.com> |
Remove TargetInstrInfo::CommuteChangesDestination and added findCommutedOpIndices which returns the operand indices which are swapped (when applicable). This allows for some code clean up and future enhancements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75264 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
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| 498c2903e28b56b73b8056335ad7f1eb6347b8ed |
|
01-Jul-2009 |
Evan Cheng <evan.cheng@apple.com> |
CommuteChangesDestination() should check if to-be-commuted instruction defines any register. Also teaches the default commuteInstruction() to commute instruction without definitions (e.g. X86::test / ARM::tsp).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74602 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 587daedce2d6c2b2d380b6a5843a6f8b6cfc79e4 |
|
13-May-2009 |
Bill Wendling <isanbard@gmail.com> |
Change MachineInstrBuilder::addReg() to take a flag instead of a list of
booleans. This gives a better indication of what the "addReg()" is
doing. Remembering what all of those booleans mean isn't easy, especially if you
aren't spending all of your time in that code.
I took Jakob's suggestion and made it illegal to pass in "true" for the
flag. This should hopefully prevent any unintended misuse of this (by reverting
to the old way of using addReg()).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71722 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| d62e06c53b8b7e555617dc9b24b98c007d63de5d |
|
03-Feb-2009 |
Bill Wendling <isanbard@gmail.com> |
Explicitly pass in debug location information to BuildMI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63599 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| c54baa2d43730f1804acfb4f4e738fba72f966bd |
|
03-Dec-2008 |
Dan Gohman <gohman@apple.com> |
Split foldMemoryOperand into public non-virtual and protected virtual
parts, and add target-independent code to add/preserve
MachineMemOperands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60488 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.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/TargetInstrInfoImpl.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/TargetInstrInfoImpl.cpp
|
| 3885578a36072dd55c3381b99d4a88299dddbfa3 |
|
11-Sep-2008 |
Evan Cheng <evan.cheng@apple.com> |
Fix a 80 column violation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56097 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 44eb65cf58e3ab9b5621ce72256d1621a18aeed7 |
|
15-Aug-2008 |
Owen Anderson <resistor@mac.com> |
Convert uses of std::vector in TargetInstrInfo to SmallVector. This change had to be propoagated down into all the targets and up into all clients of this API.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54802 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.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/TargetInstrInfoImpl.cpp
|
| 58dcb0e0cd3fa973b5fd005aecab1df6aeea5cd6 |
|
16-Jun-2008 |
Evan Cheng <evan.cheng@apple.com> |
Add option to commuteInstruction() which forces it to create a new (commuted) instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52308 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 52e724ad7e679ee590f4bd763d55280586a8f1bc |
|
16-Apr-2008 |
Nicolas Geoffray <nicolas.geoffray@lip6.fr> |
Infrastructure for getting the machine code size of a function and an instruction. X86, PowerPC and ARM are implemented
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49809 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| ca1267c02b025cc719190b05f9e1a5d174a9caf7 |
|
31-Mar-2008 |
Evan Cheng <evan.cheng@apple.com> |
Move reMaterialize() from TargetRegisterInfo to TargetInstrInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48995 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| f20db159541bf27f5d2fdf8d4ba1c8b270b936df |
|
15-Feb-2008 |
Evan Cheng <evan.cheng@apple.com> |
Added CommuteChangesDestination(). This returns true if commuting the specified
machine instr will change its definition register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47166 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| 9cec00e7f1dec7c3142d81c1256d198afa3718d3 |
|
13-Feb-2008 |
Evan Cheng <evan.cheng@apple.com> |
Simplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47058 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|
| a4d16a1f0dcdd1ab2862737105f900e2c577532d |
|
13-Feb-2008 |
Evan Cheng <evan.cheng@apple.com> |
commuteInstr() can now commute non-ssa machine instrs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47043 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.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/TargetInstrInfoImpl.cpp
|
| 8ca5c67c6e95fdcf5ddb2f06586873c843dd0cde |
|
07-Jan-2008 |
Chris Lattner <sabre@nondot.org> |
Add predicates methods to TargetOperandInfo, and switch all clients
over to using them, instead of diddling Flags directly. Change the
various flags from const variables to enums.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45677 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.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/TargetInstrInfoImpl.cpp
|
| 641055225092833197efe8e5bce01d50bcf1daae |
|
01-Jan-2008 |
Chris Lattner <sabre@nondot.org> |
Fix a problem where lib/Target/TargetInstrInfo.h would include and use
a header file from libcodegen. This violates a layering order: codegen
depends on target, not the other way around. The fix to this is to
split TII into two classes, TII and TargetInstrInfoImpl, which defines
stuff that depends on libcodegen. It is defined in libcodegen, where
the base is not.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45475 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
|