History log of /external/llvm/lib/CodeGen/LiveDebugVariables.cpp
Revision Date Author Comments (<<< Hide modified files) (Show modified files >>>)
cddc3e03e4ec99c0268c03a126195173e519ed58 04-Mar-2016 Pirama Arumuga Nainar <pirama@google.com> Update aosp/master LLVM for rebase to r256229

http://b/26987366

(cherry picked from commit f3ef5332fa3f4d5ec72c178a2b19dac363a19383)

Change-Id: Ic75dcb63191d65df1b69724576392c0aaeb47728
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
6948897e478cbd66626159776a8017b3c18579b9 01-Jul-2015 Pirama Arumuga Nainar <pirama@google.com> Update aosp/master LLVM for rebase to r239765

Bug: 20140355: This rebase pulls the upstream fix for the spurious
warnings mentioned in the bug.

Change-Id: I7fd24253c50f4d48d900875dcf43ce3f1721a3da
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
0c7f116bb6950ef819323d855415b2f2b0aad987 06-May-2015 Pirama Arumuga Nainar <pirama@google.com> Update aosp/master LLVM for rebase to r235153

Change-Id: I9bf53792f9fc30570e81a8d80d296c681d005ea7
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
4c5e43da7792f75567b693105cc53e3f1992ad98 08-Apr-2015 Pirama Arumuga Nainar <pirama@google.com> Update aosp/master llvm for rebase to r233350

Change-Id: I07d935f8793ee8ec6b7da003f6483046594bca49
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
ebe69fe11e48d322045d5949c83283927a0d790b 23-Mar-2015 Stephen Hines <srhines@google.com> Update aosp/master LLVM for rebase to r230699.

Change-Id: I2b5be30509658cb8266be782de0ab24f9099f9b9
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
37ed9c199ca639565f6ce88105f9e39e898d82d0 01-Dec-2014 Stephen Hines <srhines@google.com> Update aosp/master LLVM for rebase to r222494.

Change-Id: Ic787f5e0124df789bd26f3f24680f45e678eef2d
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
c6a4f5e819217e1e12c458aed8e7b122e23a3a58 21-Jul-2014 Stephen Hines <srhines@google.com> Update LLVM for rebase to r212749.

Includes a cherry-pick of:
r212948 - fixes a small issue with atomic calls

Change-Id: Ib97bd980b59f18142a69506400911a6009d9df18
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
dce4a407a24b04eebc6a376f8e62b41aaa7b071f 29-May-2014 Stephen Hines <srhines@google.com> Update LLVM for 3.5 rebase (r209712).

Change-Id: I149556c940fb7dc92d075273c87ff584f400941f
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
36b56886974eae4f9c5ebc96befd3e7bfe5de338 24-Apr-2014 Stephen Hines <srhines@google.com> Update to LLVM 3.5a.

Change-Id: Ifadecab779f128e62e430c2b4f6ddd84953ed617
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
4f3b5e8c9232e43d1291aab8db5f5698d7ee0ea4 10-Oct-2013 Matthias Braun <matze@braunis.de> Represent RegUnit liveness with LiveRange instance

Previously LiveInterval has been used, but having a spill weight and
register number is unnecessary for a register unit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192397 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
331de11a0acc6a095b98914b5f05ff242c9d7819 10-Oct-2013 Matthias Braun <matze@braunis.de> Rename LiveRange to LiveInterval::Segment

The Segment struct contains a single interval; multiple instances of this struct
are used to construct a live range, but the struct is not a live range by
itself.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192392 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
818833f27929d650b4323774cd3660860588f687 17-Sep-2013 Adrian Prantl <aprantl@apple.com> Debug info: Fix PR16736 and rdar://problem/14990587.
A DBG_VALUE is register-indirect iff the first operand is a register
_and_ the second operand is an immediate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190821 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
1feb5854aeeda897e9318c8193d187673c8576b8 15-Aug-2013 Mark Lacey <mark.lacey@apple.com> Track new virtual registers by register number.

Track new virtual registers by register number, rather than by the live
interval created for them. This is the first step in separating the
creation of new virtual registers and new live intervals. Eventually
live intervals will be created and populated on demand after the virtual
registers have been created and used in instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188434 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
3517640443f0b5224e2a6414c246ac60016ee9d4 09-Jul-2013 Adrian Prantl <aprantl@apple.com> Reapply an improved version of r180816/180817.

Change the informal convention of DBG_VALUE machine instructions so that
we can express a register-indirect address with an offset of 0.
The old convention was that a DBG_VALUE is a register-indirect value if
the offset (operand 1) is nonzero. The new convention is that a DBG_VALUE
is register-indirect if the first operand is a register and the second
operand is an immediate. For plain register values the combination reg,
reg is used. MachineInstrBuilder::BuildMI knows how to build the new
DBG_VALUES.

rdar://problem/13658587

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185966 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
6d9dbd5526e3161db884fc4fe99c278bb59ccc19 16-Jun-2013 David Blaikie <dblaikie@gmail.com> Debug Info: Simplify Frame Index handling in DBG_VALUE Machine Instructions

Rather than using the full power of target-specific addressing modes in
DBG_VALUEs with Frame Indicies, simply use Frame Index + Offset. This
reduces the complexity of debug info handling down to two
representations of values (reg+offset and frame index+offset) rather
than three or four.

Ideally we could ensure that frame indicies had been eliminated by the
time we reached an assembly or dwarf generation, but I haven't spent the
time to figure out where the FIs are leaking through into that & whether
there's a good place to convert them. Some FI+offset=>reg+offset
conversion is done (see PrologEpilogInserter, for example) which is
necessary for some SelectionDAG assumptions about registers, I believe,
but it might be possible to make this a more thorough conversion &
ensure there are no remaining FIs no matter how instruction selection
is performed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184066 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
86a87d9ba1faf153e0e6eaddfd3e95595c83bcb1 01-May-2013 Adrian Prantl <aprantl@apple.com> Temporarily revert "Change the informal convention of DBG_VALUE so that we can express a"
because it breaks some buildbots.

This reverts commit 180816.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180819 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
a2b56692c8b824b8cc4a0927bb555f3718e9bee8 01-May-2013 Adrian Prantl <aprantl@apple.com> Change the informal convention of DBG_VALUE so that we can express a
register-indirect address with an offset of 0.
It used to be that a DBG_VALUE is a register-indirect value if the offset
(operand 1) is nonzero. The new convention is that a DBG_VALUE is
register-indirect if the first operand is a register and the second
operand is an immediate. For plain registers use the combination reg, reg.

rdar://problem/13658587

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180816 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
f098620095727dd2a823a94a3a8d47108361ad83 13-Feb-2013 Manman Ren <mren@apple.com> Clean up LDV, no functionality change.

Remove dead functions: renameRegister
Move private member variables from LDV to Impl
Remove ssp/uwtable from testing case


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175072 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
b3cecdfcf9a0b736d3c0f6f5abffb41ecda3577c 13-Feb-2013 Eric Christopher <echristo@gmail.com> Fix comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175024 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
4be3853fd0a0e3b37a27afe05327e638e680c463 13-Feb-2013 Manman Ren <mren@apple.com> Debug Info: LiveDebugVarible can remove DBG_VALUEs, make sure we emit them back.

RegisterCoalescer used to depend on LiveDebugVariable. LDV removes DBG_VALUEs
without emitting them at the end.

We fix this by removing LDV from RegisterCoalescer. Also add an assertion to
make sure we call emitDebugValues if DBG_VALUEs are removed at
runOnMachineFunction.

rdar://problem/13183203
Reviewed by Andy & Jakob


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175023 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
0b8c9a80f20772c3793201ab5b251d3520b9cea3 02-Jan-2013 Chandler Carruth <chandlerc@gmail.com> Move all of the header files which are involved in modelling the LLVM IR
into their new header subdirectory: include/llvm/IR. This matches the
directory structure of lib, and begins to correct a long standing point
of file layout clutter in LLVM.

There are still more header files to move here, but I wanted to handle
them in separate commits to make tracking what files make sense at each
layer easier.

The only really questionable files here are the target intrinsic
tablegen files. But that's a battle I'd rather not fight today.

I've updated both CMake and Makefile build systems (I think, and my
tests think, but I may have missed something).

I've also re-sorted the includes throughout the project. I'll be
committing updates to Clang, DragonEgg, and Polly momentarily.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171366 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
d04a8d4b33ff316ca4cf961e06c9e312eff8e64f 03-Dec-2012 Chandler Carruth <chandlerc@gmail.com> Use the new script to sort the includes of every file under lib.

Sooooo many of these had incorrect or strange main module includes.
I have manually inspected all of these, and fixed the main module
include to be the nearest plausible thing I could find. If you own or
care about any of these source files, I encourage you to take some time
and check that these edits were sensible. I can't have broken anything
(I strictly added headers, and reordered them, never removed), but they
may not be the headers you'd really like to identify as containing the
API being implemented.

Many forward declarations and missing includes were added to a header
files to allow them to parse cleanly when included first. The main
module rule does in fact have its merits. =]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169131 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
1ead68d769f27f6d68d4aaeffe4199fa2cacbc95 28-Nov-2012 Jakob Stoklund Olesen <stoklund@2pi.dk> Make the LiveRegMatrix analysis available to targets.

No functional change, just moved header files.

Targets can inject custom passes between register allocation and
rewriting. This makes it possible to tweak the register allocation
before rewriting, using the full global interference checking available
from LiveRegMatrix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168806 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.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/LiveDebugVariables.cpp
0bcbd1df7a204e1e512f1a27066d725309de1b13 28-Jun-2012 Bill Wendling <isanbard@gmail.com> Move lib/Analysis/DebugInfo.cpp to lib/VMCore/DebugInfo.cpp and
include/llvm/Analysis/DebugInfo.h to include/llvm/DebugInfo.h.

The reasoning is because the DebugInfo module is simply an interface to the
debug info MDNodes and has nothing to do with analysis.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159312 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
b150930910a254377a62ed74af981c37eafe8fcb 22-Jun-2012 Jakob Stoklund Olesen <stoklund@2pi.dk> Don't depend on live ranges being present.

DBG_VALUE instructions could be referring to non-existing virtual
registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159020 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
e8a0a1286417e73f4b2bffe21ae45882701e703f 22-Jun-2012 Jakob Stoklund Olesen <stoklund@2pi.dk> Use regunit liveness to guide LiveDebugVariables.

This should produce the same results as using physreg liveness directly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159009 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
70724aaf7329b8de8e53648b2a3afcbbf46ddbb7 16-May-2012 Jakob Stoklund Olesen <stoklund@2pi.dk> Handle NewReg==OldReg in renameRegister().

This can happen when widening a virtual register to a super-register
class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156867 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
b82062f65265666690270f3358b0d0f508d3fbba 15-Mar-2012 Eric Christopher <echristo@apple.com> Tabs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152842 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
7cc5177d460333ca9a2f3c0783dd0d0490456867 15-Mar-2012 Eric Christopher <echristo@apple.com> Typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152841 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.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/LiveDebugVariables.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/LiveDebugVariables.cpp
cb39064e7aee2273da1d00e6b800db84ddc34b6b 13-Nov-2011 Jakob Stoklund Olesen <stoklund@2pi.dk> Stop tracking spill slot uses in VirtRegMap.

Nobody cared, StackSlotColoring scans the instructions to find used stack
slots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144485 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
76f58d20313a23758399a59ceec0fbc6c2c16397 16-Sep-2011 Benjamin Kramer <benny.kra@googlemail.com> Namespacify.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139892 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
3a2d80df88c28dc8b2d3a855c3ebd7935c8ad125 13-Sep-2011 Devang Patel <dpatel@apple.com> Use a cache to maintain list of machine basic blocks for a given UserValue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139616 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
c722c3d5ffd4ad07e17f81c2b2eb7f8074559600 10-Aug-2011 Devang Patel <dpatel@apple.com> While extending definition range of a debug variable, consult lexical scopes also. There is no point extending debug variable out side its lexical block. This provides 6x compile time speedup in some cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137250 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
a2b552d0aec83b1d030b878a130c8fefafe4d3c3 09-Aug-2011 Devang Patel <dpatel@apple.com> Print variable's inline location in debug output.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137096 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
d9f3fc7faaa7686af3e1a004d86397da9c8e0449 04-Aug-2011 Devang Patel <dpatel@apple.com> Increment counter inside insertDebugValue().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136915 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
ad90d3a343ca73c32693e2b05b74462ccd9659cd 04-Aug-2011 Devang Patel <dpatel@apple.com> Add counter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136901 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
79513ed8598bd5ebc25b0764961f326d34aaf388 04-Aug-2011 Jakob Stoklund Olesen <stoklund@2pi.dk> Correctly handle multiple DBG_VALUE instructions at the same SlotIndex.

It is possible to have multiple DBG_VALUEs for the same variable:

32L TEST32rr %vreg0<kill>, %vreg0, %EFLAGS<imp-def>; GR32:%vreg0
DBG_VALUE 2, 0, !"i"
DBG_VALUE %noreg, %0, !"i"

When that happens, keep the last one instead of the first.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136842 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
a462d6e8ebe90f3732891b02a057a88038ac1228 07-Jul-2011 Devang Patel <dpatel@apple.com> Typo.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134559 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
cf724f078623e786fc92335fdb0ec70b46f2e86d 08-May-2011 Jakob Stoklund Olesen <stoklund@2pi.dk> Remove an assertion to fix PR9872.

It can happen that a live debug variable is the last use of a sub-register, and
the register allocator will pick a larger register class for the virtual
register. If the allocated register doesn't support the sub-register index,
just use %noreg for the debug variables instead of asserting.

In PR9872, a debug variable ends up in the sub_8bit_hi part of a GR32_ABCD
register. The register is split and one part is inflated to GR32 and assigned
%ESI because there are no more normal uses of sub_8bit_hi.

Since %ESI doesn't have that sub-register, substPhysReg asserted. Now it will
simply insert a %noreg instead, and the debug variable will be marked
unavailable in that range.

We don't currently have a way of saying: !"value" is in bits 8-15 of %ESI, I
don't know if DWARF even supports that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131073 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
6212f9a304d7f8061c87920d39bddbc19afecb0c 06-May-2011 Jakob Stoklund Olesen <stoklund@2pi.dk> Iterate backwards over debug locations when splitting them so they can be safely erased.

This should unbreak dragonegg-i386-linux and build-self-4-mingw32.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131007 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
f42b66169d75301346e3685fd2b3e45e47806367 06-May-2011 Jakob Stoklund Olesen <stoklund@2pi.dk> Update LiveDebugVariables after live range splitting.

After a virtual register is split, update any debug user variables that resided
in the old register. This ensures that the LiveDebugVariables are still correct
after register allocation.

This may create DBG_VALUE instructions that place a user variable in a register
in parts of the function and in a stack slot in other parts. DwarfDebug
currently doesn't support that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130998 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
e77150bbcbf1f53b3830904be4d243c618c00b14 06-May-2011 Jakob Stoklund Olesen <stoklund@2pi.dk> Use TargetMachine hooks to properly print debug variable locations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130997 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.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/LiveDebugVariables.cpp
28cf1156c93afabedc69fe7b73aa92ce85e323a5 22-Mar-2011 Jakob Stoklund Olesen <stoklund@2pi.dk> Reapply r128045 and r128051 with fixes.

This will extend the ranges of debug info variables in registers until they are
clobbered.

Fix 1: Don't mistake DBG_VALUE instructions referring to incoming arguments on
the stack with DBG_VALUE instructions referring to variables in the frame
pointer. This fixes the gdb test-suite failure.

Fix 2: Don't trace through copies to physical registers setting up call
arguments. These registers are call clobbered, and the source register is more
likely to be a callee-saved register that can be extended through the call
instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128114 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
c1dbd5d9c30ea67ae45f190ff90e076cdf8bbc17 22-Mar-2011 Andrew Trick <atrick@apple.com> Revert r128045 and r128051, debug info enhancements.

Temporarily reverting these to see if we can get llvm-objdump to link. Hopefully this is not the problem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128097 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
e17232ee4de2f608f0e5d965368c2bc54b6c1e83 22-Mar-2011 Jakob Stoklund Olesen <stoklund@2pi.dk> Dont emit 'DBG_VALUE %noreg, ...' to terminate user variable ranges.

These ranges get completely jumbled by the post-ra scheduler, and it is not
really reasonable to expect it to make sense of them.

Instead, teach DwarfDebug to notice when user variables in registers are
clobbered, and terminate the ranges there.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128045 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
1744e476ec3df0350a1163bf2c6439ea21aefbba 18-Mar-2011 Jakob Stoklund Olesen <stoklund@2pi.dk> Extend live debug values down the dominator tree by following copies.

The llvm.dbg.value intrinsic refers to SSA values, not virtual registers, so we
should be able to extend the range of a value by tracking that value through
register copies. This greatly improves the debug value tracking for function
arguments that for some reason are copied to a second virtual register at the
end of the entry block.

We only extend the debug value range where its register is killed. All original
llvm.dbg.value locations are still respected.

Copies from physical registers are ignored. That should not be a problem since
the entry block already adds DBG_VALUE instructions for the virtual registers
holding the function arguments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127912 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
f827cd717b63fd3f1d9ad16e69087c65e9af8c82 04-Feb-2011 Devang Patel <dpatel@apple.com> DebugLoc associated with a machine instruction is used to emit location entries. DebugLoc associated with a DBG_VALUE is used to identify lexical scope of the variable. After register allocation, while inserting DBG_VALUE remember original debug location for the first instruction and reuse it, otherwise dwarf writer may be mislead in identifying the variable's scope.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124845 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
eea666f216ad3a8f8cd88a969176f86add7228f3 14-Jan-2011 Jakob Stoklund Olesen <stoklund@2pi.dk> Better terminator avoidance.

This approach also works when the terminator doesn't have a slot index. (Which
can happen??)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123413 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
a6ada9f725b0015c419a7ef661e833f9e9b26ff8 13-Jan-2011 Jakob Stoklund Olesen <stoklund@2pi.dk> Temporary workaround for an i386 crash in LiveDebugVariables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123400 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
25dc2268a5aedcb5da57f065dbdb40d790b11bc0 13-Jan-2011 Jakob Stoklund Olesen <stoklund@2pi.dk> Try again enabling LiveDebugVariables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123342 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
f0704d28f34b872f949ef8030651c7159ff6f32f 13-Jan-2011 Jakob Stoklund Olesen <stoklund@2pi.dk> Don't emit a DBG_VALUE for a spill slot that the rewriter decided not to use after all.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123339 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
12a40314a91511b65bc83782fd5a3e981331adb1 13-Jan-2011 Jakob Stoklund Olesen <stoklund@2pi.dk> Fix braino in dominator tree walk.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123338 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
f203627f21614cbef9526aa791b3e7b0493d1e41 12-Jan-2011 Jakob Stoklund Olesen <stoklund@2pi.dk> Sometimes, old virtual registers can linger on DBG_VALUE instructions.

Make sure we don't crash in that case, but simply turn them into %noreg instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123335 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
2df5458535c54c1e214da65191ef86c38b57da39 12-Jan-2011 Jakob Stoklund Olesen <stoklund@2pi.dk> The world is not ready for LiveDebugVariables yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123290 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
a518ccc26a0e01d93a58e305f7c19c42fa640bb9 11-Jan-2011 Jakob Stoklund Olesen <stoklund@2pi.dk> Enable LiveDebugVariables by default.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123282 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
b08773749a42a8c68afca96360b6e361147779b4 11-Jan-2011 Jakob Stoklund Olesen <stoklund@2pi.dk> Don't insert DBG_VALUE instructions after the first terminator.

For one, MachineBasicBlock::getFirstTerminator() doesn't understand what is
happening, and it also makes sense to have all control flow run through the
DBG_VALUE.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123277 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.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/LiveDebugVariables.cpp
0804ead404d694b35e9c55ccbf43f99cd394e487 09-Jan-2011 Jakob Stoklund Olesen <stoklund@2pi.dk> Simplify LiveDebugVariables by storing MachineOperand copies locations instead
of using a Location class with the same information.

When making a copy of a MachineOperand that was already stored in a
MachineInstr, it is necessary to clear the parent pointer on the copy. Otherwise
the register use-def lists become inconsistent.

Add MachineOperand::clearParent() to do that. An alternative would be a custom
MachineOperand copy constructor that cleared ParentMI. I didn't want to do that
because of the performance impact.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123109 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.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/LiveDebugVariables.cpp
51a666f0e50a34b74212db9c5814153c885153a5 07-Jan-2011 Devang Patel <dpatel@apple.com> Speculatively revert r123032.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123039 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
1dea232624c246341a5a98e0d481ba89f854012c 07-Jan-2011 Devang Patel <dpatel@apple.com> Appropriately truncate debug info range in dwarf output.
Enable live debug variables pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123032 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
6ed4c6af97db8b2bbfd6b54dd2a58f16cf0c592b 03-Dec-2010 Jakob Stoklund Olesen <stoklund@2pi.dk> Rename virtRegMap to avoid confusion with the VirtRegMap that it isn't.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120846 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
5daec2215bdb6f484956362d81e5923bb2bffd58 03-Dec-2010 Jakob Stoklund Olesen <stoklund@2pi.dk> Coalesce debug locations when possible, causing less DBG_VALUE instructions to
be emitted.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120845 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
42acf069c9e46395a2fa230ed6b89b402828e3d5 03-Dec-2010 Jakob Stoklund Olesen <stoklund@2pi.dk> Emit DBG_VALUE instructions from LiveDebugVariables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120842 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
8d2584a1d9ab56d35884d035e4da6146b4d7391f 03-Dec-2010 Jakob Stoklund Olesen <stoklund@2pi.dk> Also update virtRegMap when renaming virtual registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120841 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
30e2128a731e5a0bcac45a6a79a03bdedce68a0a 02-Dec-2010 Jakob Stoklund Olesen <stoklund@2pi.dk> Update LiveDebugVariables during coalescing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120720 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
0613516b16466a92c68d60734801221506c85e86 02-Dec-2010 Jakob Stoklund Olesen <stoklund@2pi.dk> Implement the first half of LiveDebugVariables.

Scan the MachineFunction for DBG_VALUE instructions, and replace them with a
data structure similar to LiveIntervals. The live range of a DBG_VALUE is
determined by propagating it down the dominator tree until a new DBG_VALUE is
found. When a DBG_VALUE lives in a register, its live range is confined to the
live range of the register's value.

LiveDebugVariables runs before coalescing, so DBG_VALUEs are not artificially
extended when registers are joined.

The missing half will recreate DBG_VALUE instructions from the intervals when
register allocation is complete.

The pass is disabled by default. It can be enabled with the temporary command
line option -live-debug-variables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120636 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp
bb7b23f5b79a7ca2aa62faa1a6078428af597234 30-Nov-2010 Jakob Stoklund Olesen <stoklund@2pi.dk> Stub out a new LiveDebugVariables pass.

This analysis is going to run immediately after LiveIntervals. It will stay
alive during register allocation and keep track of user variables mentioned in
DBG_VALUE instructions.

When the register allocator is moving values between registers and the stack, it
is very hard to keep track of DBG_VALUE instructions. We usually get it wrong.
This analysis maintains a data structure that makes it easy to update DBG_VALUE
instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120385 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/LiveDebugVariables.cpp