Pete Cooper [Tue, 28 Feb 2012 05:06:24 +0000 (05:06 +0000)]
Reverted r152620 - DSE: Shorten memset when a later store overwrites the start of it. There were all sorts of buildbot issues
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151621
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Pete Cooper [Tue, 28 Feb 2012 04:27:10 +0000 (04:27 +0000)]
DSE: Shorten memset when a later store overwrites the start of it
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151620
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Bill Wendling [Tue, 28 Feb 2012 04:01:21 +0000 (04:01 +0000)]
Oops...Don't commit the other stuff..
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151618
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Bill Wendling [Tue, 28 Feb 2012 03:47:09 +0000 (03:47 +0000)]
Modify comment to reflect the importance of this code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151617
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Akira Hatanaka [Tue, 28 Feb 2012 03:18:43 +0000 (03:18 +0000)]
Add comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151615
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Akira Hatanaka [Tue, 28 Feb 2012 03:17:38 +0000 (03:17 +0000)]
Do not reserve $gp as a dedicated global base register if the target ABI is not O32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151614
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Charles Davis [Tue, 28 Feb 2012 02:55:41 +0000 (02:55 +0000)]
Strip extraneous information, if present, from the linker version string on
Mac OS X. Patch by Fabian Groffen, with a slight tweak by me.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151612
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Akira Hatanaka [Tue, 28 Feb 2012 02:55:02 +0000 (02:55 +0000)]
Add support for floating point base register + offset register addressing mode
load and store instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151611
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Jakob Stoklund Olesen [Tue, 28 Feb 2012 02:08:50 +0000 (02:08 +0000)]
Handle regmasks in MachineCSE.
Don't attempt to extend physreg live ranges across calls.
<rdar://problem/
10942095>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151610
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Rafael Espindola [Tue, 28 Feb 2012 02:01:55 +0000 (02:01 +0000)]
Enable -Wcovered-switch-default as it matches the switch style used in llvm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151609
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Jakob Stoklund Olesen [Tue, 28 Feb 2012 01:42:41 +0000 (01:42 +0000)]
Handle regmasks in the machine code verifier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151607
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Jakob Stoklund Olesen [Tue, 28 Feb 2012 01:15:01 +0000 (01:15 +0000)]
Enable ARM base pointer when calling functions with large arguments.
When an outgoing call takes more than 2k of arguments on the stack, we
don't allocate that call frame in the prolog, but adjust the stack
pointer immediately before the call instead.
This causes problems with the emergency spill slot because PEI can't
track stack pointer adjustments on the second pass, and if the outgoing
arguments are too big, SP can't be used to reach the emergency spill
slot at all.
Work around these problems by ensuring there is a base or frame pointer
that can be used to access the emergency spill slot.
<rdar://problem/
10917166>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151604
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Michael J. Spencer [Tue, 28 Feb 2012 00:40:37 +0000 (00:40 +0000)]
[Object] Add {begin,end}_dynamic_symbols stubs and implementation for ELF.
Add -D option to llvm-nm to dump dynamic symbols.
Patch by David Meyer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151600
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Chad Rosier [Tue, 28 Feb 2012 00:23:01 +0000 (00:23 +0000)]
Fix 80-column violation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151599
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Hal Finkel [Mon, 27 Feb 2012 23:59:33 +0000 (23:59 +0000)]
Allow llvm-stress to optionally generate the other floating-point types (half, ppcf128, mmx, etc.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151596
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Bill Wendling [Mon, 27 Feb 2012 23:48:30 +0000 (23:48 +0000)]
Add back removed code. It still causes LLVM to miscompile. But not having it breaks other things.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151594
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Preston Gurd [Mon, 27 Feb 2012 23:35:03 +0000 (23:35 +0000)]
This patch adds instruction latencies for the SSE instructions
to the instruction scheduler for the Intel Atom.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151590
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Preston Gurd [Mon, 27 Feb 2012 23:31:51 +0000 (23:31 +0000)]
test commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151588
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Eli Friedman [Mon, 27 Feb 2012 23:16:46 +0000 (23:16 +0000)]
Duncan pointed out that if the alignment isn't explicitly specified, it defaults to the ABI alignment. Given that, make this code a bit more aggressive in such cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151584
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Evandro Menezes [Mon, 27 Feb 2012 23:00:52 +0000 (23:00 +0000)]
Delete incorrect reference to inexistent Hexagon architecture manuals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151582
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Bill Wendling [Mon, 27 Feb 2012 22:55:40 +0000 (22:55 +0000)]
Don't use #if 0. Just remove until I can address this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151580
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Bill Wendling [Mon, 27 Feb 2012 22:53:42 +0000 (22:53 +0000)]
XFAIL test until <rdar://problem/
10913281> is fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151578
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Bill Wendling [Mon, 27 Feb 2012 22:34:19 +0000 (22:34 +0000)]
The code that cleans up multiple, isomorphic types has a subtle error that
manifests itself when building LLVM with LTO.
<rdar://problem/
10913281>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151576
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Michael J. Spencer [Mon, 27 Feb 2012 22:06:44 +0000 (22:06 +0000)]
Remove duplicate copy of Object/ELF.h that somehow managed to get in.
Patch by David Meyer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151575
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Evan Cheng [Mon, 27 Feb 2012 21:46:42 +0000 (21:46 +0000)]
Fix for PR12090: clear def maps of aliases when visiting a copy. e.g.
%S5<def> = COPY %S0<kill>
First clear def map of Q1, etc.
No small test case available.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151574
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Jim Grosbach [Mon, 27 Feb 2012 21:36:23 +0000 (21:36 +0000)]
ARM BL/BLX instruction fixups should use relocations.
We on the linker to resolve calls to the appropriate BL/BLX instruction
to make interworking function correctly. It uses the symbol in the
relocation to do that, so we need to be careful about being too clever.
To enable this for ARM mode, split the BL/BLX fixup kind off from the
unconditional-branch fixups.
rdar://
10927209
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151571
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Argyrios Kyrtzidis [Mon, 27 Feb 2012 21:08:33 +0000 (21:08 +0000)]
Move "clang/Analysis/Support/SaveAndRestore.h" to "llvm/ADT/SaveAndRestore.h"
to make it more widely available.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151564
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Eli Friedman [Mon, 27 Feb 2012 20:46:07 +0000 (20:46 +0000)]
Teach BasicAA about the LLVM IR rules that allow reading past the end of an object given sufficient alignment. Fixes PR12098.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151553
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Roman Divacky [Mon, 27 Feb 2012 20:42:19 +0000 (20:42 +0000)]
Test the section specification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151552
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Derek Schuff [Mon, 27 Feb 2012 20:31:47 +0000 (20:31 +0000)]
Fix PR12089
http://llvm.org/bugs/show_bug.cgi?id=12089
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151550
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Roman Divacky [Mon, 27 Feb 2012 20:20:47 +0000 (20:20 +0000)]
Reapply r151278 with fixes.
MCize function entry label emission on PowerPC64 properly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151547
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Chad Rosier [Mon, 27 Feb 2012 19:43:12 +0000 (19:43 +0000)]
Add q suffix aliases for the fistp and fisttp mnemonics.
rdar://
10921670
PR11935
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151543
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Akira Hatanaka [Mon, 27 Feb 2012 19:17:53 +0000 (19:17 +0000)]
Remove unnecessary template parameters.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151540
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Akira Hatanaka [Mon, 27 Feb 2012 19:09:08 +0000 (19:09 +0000)]
Fix instruction predicates that were not set correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151538
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Jakob Stoklund Olesen [Mon, 27 Feb 2012 18:24:30 +0000 (18:24 +0000)]
Update machine code verifier.
After the SlotIndex slot names were updated, it is possible to apply
stricter checks to live intervals.
Also treat bundles as bags of operands when checking live intervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151531
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Kevin Enderby [Mon, 27 Feb 2012 18:15:15 +0000 (18:15 +0000)]
Fix the symbolic operand added for the C disassmbler API for the ARM bl
thumb instruction. The PC adjustment is +4 in Thumb mode and +8 in ARM mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151530
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Jakob Stoklund Olesen [Mon, 27 Feb 2012 18:09:36 +0000 (18:09 +0000)]
Add a MachineOperand iterator class.
The MIOperands iterator can visit operands on a single instruction, or
all operands in a bundle. This simplifies code like the register
allocator that treats bundles as a set of operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151529
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Benjamin Kramer [Mon, 27 Feb 2012 12:48:24 +0000 (12:48 +0000)]
Plog a memleak in GlobalOpt.
Found by valgrind.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151525
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Duncan Sands [Mon, 27 Feb 2012 12:11:41 +0000 (12:11 +0000)]
Micro-optimization, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151524
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Jay Foad [Mon, 27 Feb 2012 11:00:17 +0000 (11:00 +0000)]
Help the compiler to eliminate some dead code when hashing an array of T
where sizeof (T) is a multiple of 4.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151523
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Duncan Sands [Mon, 27 Feb 2012 09:54:35 +0000 (09:54 +0000)]
The value numbering function is recursive, so it is possible for multiple new
value numbers to be assigned when calculating any particular value number.
Enhance the logic that detects new value numbers to take this into account,
for a tiny compile time speedup. Fix a comment typo while there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151522
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Duncan Sands [Mon, 27 Feb 2012 08:14:30 +0000 (08:14 +0000)]
When performing a conditional branch depending on the value of a comparison
%cmp (eg: A==B) we already replace %cmp with "true" under the true edge, and
with "false" under the false edge. This change enhances this to replace the
negated compare (A!=B) with "false" under the true edge and "true" under the
false edge. Reported to improve perlbench results by 1%.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151517
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Craig Topper [Mon, 27 Feb 2012 02:59:43 +0000 (02:59 +0000)]
Remove HexagonGenIntrinsics.inc from Hexagon cmake file. It does not appear in the Makefile and the output it produces isn't used. The Hexagon intrinsics are all in the global Intrinsics.gen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151514
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Craig Topper [Mon, 27 Feb 2012 02:31:09 +0000 (02:31 +0000)]
Update tblgen command guide. Remove unused tblgen InstrEnumEmitter files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151513
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Jia Liu [Mon, 27 Feb 2012 02:21:34 +0000 (02:21 +0000)]
delete useless comment&blank
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151512
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Rafael Espindola [Mon, 27 Feb 2012 02:13:03 +0000 (02:13 +0000)]
Fix this assert. IP can point to an instruction with strange dominance
properties (invoke). Just assert that the instruction we return dominates
the insertion point.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151511
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Craig Topper [Mon, 27 Feb 2012 01:54:29 +0000 (01:54 +0000)]
X86 disassembler support for jcxz, jecxz, and jrcxz. Fixes PR11643. Patch by Kay Tiong Khoo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151510
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Chad Rosier [Sun, 26 Feb 2012 22:26:37 +0000 (22:26 +0000)]
Remove more GCC FE build stuff.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151507
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Chad Rosier [Sun, 26 Feb 2012 22:17:05 +0000 (22:17 +0000)]
Installing the GCC front end is no longer supported.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151506
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Chad Rosier [Sun, 26 Feb 2012 22:12:59 +0000 (22:12 +0000)]
Cleanup the LLVM Getting Started page.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151505
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Chad Rosier [Sun, 26 Feb 2012 21:34:02 +0000 (21:34 +0000)]
Add href to clang in overview.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151503
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Chad Rosier [Sun, 26 Feb 2012 21:31:25 +0000 (21:31 +0000)]
Remove references to llvm-gcc from overview and tutorial.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151502
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Nadav Rotem [Sun, 26 Feb 2012 13:56:18 +0000 (13:56 +0000)]
Add support for random constant vectors.
Patch by Joey Gouly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151489
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Nadav Rotem [Sun, 26 Feb 2012 12:34:17 +0000 (12:34 +0000)]
Style fix: Remove unneeded parentheses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151488
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Nadav Rotem [Sun, 26 Feb 2012 12:00:22 +0000 (12:00 +0000)]
Fix a bug in the code that checks if a store value is a vector of i1s
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151487
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Nadav Rotem [Sun, 26 Feb 2012 08:59:25 +0000 (08:59 +0000)]
Fix compilation on MSVC. Rename "_BB" to "Block"
Thanks zygoloid.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151481
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Nadav Rotem [Sun, 26 Feb 2012 08:43:43 +0000 (08:43 +0000)]
fix a copy-and-paste error in the docs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151480
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Nadav Rotem [Sun, 26 Feb 2012 08:35:53 +0000 (08:35 +0000)]
Add a random .LL file generator to stress-test different llvm components.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151479
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Rafael Espindola [Sun, 26 Feb 2012 05:49:57 +0000 (05:49 +0000)]
Add testcase for the previous commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151475
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Rafael Espindola [Sun, 26 Feb 2012 05:30:08 +0000 (05:30 +0000)]
Don't call dominates on unreachable instructions. Should fix the dragonegg
build. Testcase is still reducing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151474
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Hal Finkel [Sun, 26 Feb 2012 04:13:31 +0000 (04:13 +0000)]
Default TargetData alignment information for 128-bit floating-point types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151473
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Rafael Espindola [Sun, 26 Feb 2012 02:36:56 +0000 (02:36 +0000)]
And update the comment...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151472
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Rafael Espindola [Sun, 26 Feb 2012 02:29:18 +0000 (02:29 +0000)]
Enable the assert that got all this dominator work started.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151471
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Rafael Espindola [Sun, 26 Feb 2012 02:23:37 +0000 (02:23 +0000)]
Use the DT dominates function in the verifier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151470
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Rafael Espindola [Sun, 26 Feb 2012 02:19:19 +0000 (02:19 +0000)]
Change the implementation of dominates(inst, inst) to one based on what the
verifier does. This correctly handles invoke.
Thanks to Duncan, Andrew and Chris for the comments.
Thanks to Joerg for the early testing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151469
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Rafael Espindola [Sun, 26 Feb 2012 02:14:25 +0000 (02:14 +0000)]
Don't call dominates on unreachable instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151468
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Nick Lewycky [Sun, 26 Feb 2012 02:09:49 +0000 (02:09 +0000)]
Reinstate the optimization from r151449 with a fix to not turn 'gep %x' into
'gep null' when the icmp predicate is unsigned (or is signed without inbounds).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151467
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Rafael Espindola [Sun, 26 Feb 2012 01:50:14 +0000 (01:50 +0000)]
Don't call dominates on unreachable instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151466
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Nick Lewycky [Sat, 25 Feb 2012 23:01:19 +0000 (23:01 +0000)]
Roll these back to r151448 until I figure out how they're breaking
MultiSource/Applications/lua.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151463
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Nick Lewycky [Sat, 25 Feb 2012 20:19:07 +0000 (20:19 +0000)]
An argument and a local identified object (eg. a noalias call) could turn out
equal if both are null. In the test, scope type %t and global @y by adding a
'gep' prefix to them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151452
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Nick Lewycky [Sat, 25 Feb 2012 19:12:58 +0000 (19:12 +0000)]
Fix five-letter typo in comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151450
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Nick Lewycky [Sat, 25 Feb 2012 19:07:42 +0000 (19:07 +0000)]
Teach instsimplify to be more aggressive when analyzing comparisons of pointers
by using llvm::isIdentifiedObject. Also teach it to handle GEPs that have
the same base pointer and constant operands. Fixes PR11238!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151449
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Nick Lewycky [Sat, 25 Feb 2012 10:56:28 +0000 (10:56 +0000)]
Move isKnownNonNull from private implementation detail of BasicAA to a public
function that others can use, next to llvm::isIdentifiedObject.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151446
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Nick Lewycky [Sat, 25 Feb 2012 07:20:06 +0000 (07:20 +0000)]
Remove spurious emacs mode marker.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151440
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Hal Finkel [Sat, 25 Feb 2012 03:40:11 +0000 (03:40 +0000)]
Revert r151278, breaks static linking.
Reverting this because it breaks static linking on ppc64. Specifically, it may be linkonce_odr functions that are the problem.
With this patch, if you link statically, calls to some functions end up calling their descriptor addresses instead
of calling to their entry points. This causes the execution to fail with SIGILL (b/c the descriptor address just
has some pointers, not code).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151433
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NAKAMURA Takumi [Sat, 25 Feb 2012 03:37:25 +0000 (03:37 +0000)]
Target/X86: Fix assertion failures and warnings caused by r151382 _ftol2 lowering for i386-*-win32 targets. Patch by Joe Groff.
[Joe Groff] Hi everyone. My previous patch applied as r151382 had a few problems:
Clang raised a warning, and X86 LowerOperation would assert out for
fptoui f64 to i32 because it improperly lowered to an illegal
BUILD_PAIR. Here's a patch that addresses these issues. Let me know if
any other changes are necessary. Thanks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151432
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Chad Rosier [Sat, 25 Feb 2012 03:07:57 +0000 (03:07 +0000)]
Add comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151431
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Chad Rosier [Sat, 25 Feb 2012 02:56:01 +0000 (02:56 +0000)]
Add support for disabling llvm.lifetime intrinsics in the AlwaysInliner. These
are optimization hints, but at -O0 we're not optimizing. This becomes a problem
when the alwaysinline attribute is abused.
rdar://
10921594
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151429
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Lang Hames [Sat, 25 Feb 2012 02:01:00 +0000 (02:01 +0000)]
Make the peephole optimizer clear kill flags on a vreg if it's about to add new
uses of the vreg, since the old kills may no longer be valid. This was causing
-verify-machineinstrs to complain about uses after kills, and could potentially
have been causing subtle register allocation issues, but I haven't come across a
test case yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151425
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Chad Rosier [Sat, 25 Feb 2012 01:10:59 +0000 (01:10 +0000)]
Fix indentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151420
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Eric Christopher [Sat, 25 Feb 2012 01:02:44 +0000 (01:02 +0000)]
Grammar-o.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151418
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Lang Hames [Sat, 25 Feb 2012 00:46:38 +0000 (00:46 +0000)]
Fixed typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151417
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Akira Hatanaka [Sat, 25 Feb 2012 00:21:52 +0000 (00:21 +0000)]
Add definitions of floating point multiply add/sub and negative multiply
add/sub instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151415
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Akira Hatanaka [Fri, 24 Feb 2012 22:34:47 +0000 (22:34 +0000)]
Add an option to use a virtual register as the global base register instead of
reserving a physical register ($gp or $28) for that purpose.
This will completely eliminate loads that restore the value of $gp after every
function call, if the register allocator assigns a callee-saved register, or
eliminate unnecessary loads if it assigns a temporary register.
example:
.cpload $25 // set $gp.
...
.cprestore 16 // store $gp to stack slot 16($sp).
...
jalr $25 // function call. clobbers $gp.
lw $gp, 16($sp) // not emitted if callee-saved reg is chosen.
...
lw $2, 4($gp)
...
jalr $25 // function call.
lw $gp, 16($sp) // not emitted if $gp is not live after this instruction.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151402
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Benjamin Kramer [Fri, 24 Feb 2012 22:09:25 +0000 (22:09 +0000)]
Remove unused cl::opt, make another opt static.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151398
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Jakob Stoklund Olesen [Fri, 24 Feb 2012 21:52:44 +0000 (21:52 +0000)]
Add missing static
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151396
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Ahmed Charles [Fri, 24 Feb 2012 19:06:15 +0000 (19:06 +0000)]
Fix undefined behavior.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151385
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Jim Grosbach [Fri, 24 Feb 2012 19:06:05 +0000 (19:06 +0000)]
Thumb2 asm aliases for wide bitwise w/ immediate instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151384
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Chris Lattner [Fri, 24 Feb 2012 19:01:58 +0000 (19:01 +0000)]
fix PR12075, a regression in a recent transform I added. In unreachable code, gep chains can be infinite. Just like "stripPointerCasts", use a set to keep track of visited instructions so we don't recurse infinitely.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151383
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Michael J. Spencer [Fri, 24 Feb 2012 19:01:22 +0000 (19:01 +0000)]
Add WIN_FTOL_* psudo-instructions to model the unique calling convention
used by the Win32 _ftol2 runtime function. Patch by Joe Groff!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151382
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Jakob Stoklund Olesen [Fri, 24 Feb 2012 18:34:20 +0000 (18:34 +0000)]
Add a -stress-regalloc=<N> option.
This will limit all register classes to N registers in order to stress
test register allocation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151379
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Hal Finkel [Fri, 24 Feb 2012 17:54:01 +0000 (17:54 +0000)]
X11/X2 loads around indirect calls on ppc64 should not be deleted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151374
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Hal Finkel [Fri, 24 Feb 2012 17:53:59 +0000 (17:53 +0000)]
Don't crash when a glue node contains an internal CopyToReg
This is necessary to support the existing ppc lowering code for indirect calls.
Fixes PR12071.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151373
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Duncan Sands [Fri, 24 Feb 2012 15:16:31 +0000 (15:16 +0000)]
Teach GVN that x+y is the same as y+x and that x<y is the same as y>x.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151365
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Benjamin Kramer [Fri, 24 Feb 2012 14:01:17 +0000 (14:01 +0000)]
SDAGBuilder: Remove register sets that were never read and prune dead code surrounding it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151364
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Kristof Beyls [Fri, 24 Feb 2012 13:52:45 +0000 (13:52 +0000)]
test commit. removing unnecessary whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151363
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NAKAMURA Takumi [Fri, 24 Feb 2012 13:29:50 +0000 (13:29 +0000)]
test/CodeGen/X86/2012-02-23-mmx-inlineasm.ll: Fixup to add -march=x86.
-mcpu does not choose arch automatically, on non-x86 hosts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151362
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Richard Osborne [Fri, 24 Feb 2012 11:49:08 +0000 (11:49 +0000)]
Remove dead code.
Patch by Ahmed Charles
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151360
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Duncan Sands [Fri, 24 Feb 2012 09:01:34 +0000 (09:01 +0000)]
Workaround a miscompilation by gcc-4.3 that showed up as a failure
of the StringRef.Split2 unittest on 32 bit machines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151358
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Nick Lewycky [Fri, 24 Feb 2012 07:59:05 +0000 (07:59 +0000)]
ScheduleDAGInstrs.h:155: warning: suggest parentheses around `&&' within `||'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151355
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