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Author SHA1 Message Date
Jakob Stoklund Olesen
bf5d485c4d Never delete instructions that define reserved registers. 
I think this was already the intention, but DeadMachineInstructionElim
was accidentally tracking the liveness of reserved registers. Now,
instructions with reserved defs are never deleted.

This prevents the call stack adjustment instructions from getting
deleted when enabling register masks.

llvm-svn: 150116
 2012-02-09 00:15:39 +00:00
Jakob Stoklund Olesen
996101938f Handle register masks in MachineCopyPropagation. 
For simplicity, treat calls with register masks as basic block
boundaries.  This means we can't copy propagate callee-saved registers
across calls, but I don't think that is a big deal.

llvm-svn: 150108
 2012-02-08 22:37:35 +00:00
Evan Cheng
1be96ff50e Commit Andy Zhang's test for the lea patch. 
llvm-svn: 150107
 2012-02-08 22:33:17 +00:00
Chris Lattner
eaaee90a17 fix broken link 
llvm-svn: 150105
 2012-02-08 22:20:00 +00:00
Kostya Serebryany
2de61e1628 [asan] unpoison the stack before every noreturn call. Fixes asan issue 37. llvm part 
llvm-svn: 150102
 2012-02-08 21:36:17 +00:00
Andrew Trick
b9d2e9e81d Codegen pass definition cleanup. No functionality. 
Moving toward a uniform style of pass definition to allow easier target configuration.
Globally declare Pass ID.
Globally declare pass initializer.
Use INITIALIZE_PASS consistently.
Add a call to the initializer from CodeGen.cpp.
Remove redundant "createPass" functions and "getPassName" methods.

While cleaning up declarations, cleaned up comments (sorry for large diff).

llvm-svn: 150100
 2012-02-08 21:23:13 +00:00
Andrew Trick
8f7cc1b245 Move pass configuration out of pass constructors: MachineLICM. 
llvm-svn: 150099
 2012-02-08 21:23:03 +00:00
Andrew Trick
a9303f3424 whitespace 
llvm-svn: 150098
 2012-02-08 21:23:00 +00:00
Andrew Trick
c210c552ee Move pass configuration out of pass constructors: StackSlotColoring. 
llvm-svn: 150097
 2012-02-08 21:22:57 +00:00
Andrew Trick
a6dea8798a Move pass configuration out of pass constructors: PostRAScheduler. 
llvm-svn: 150096
 2012-02-08 21:22:53 +00:00
Andrew Trick
9da1cc8ddd Move pass configuration out of pass constructors: BranchFolderPass 
llvm-svn: 150095
 2012-02-08 21:22:48 +00:00
Andrew Trick
beefd7ef4e whitespace 
llvm-svn: 150094
 2012-02-08 21:22:43 +00:00
Andrew Trick
fb24596a02 Added TargetPassConfig::setOpt 
llvm-svn: 150093
 2012-02-08 21:22:39 +00:00
Andrew Trick
135effe79b Added Pass::createPass(ID) to handle pass configuration by ID 
llvm-svn: 150092
 2012-02-08 21:22:34 +00:00
Andrew Trick
e696d2f01f Move pass configuration out of pass constructors: TailDuplicate::PreRegAlloc 
llvm-svn: 150091
 2012-02-08 21:22:30 +00:00
Jakob Stoklund Olesen
729c7eab42 Add Register mask support to RABasic. 
When a virtual register is live across a call, limit the search space to
call-preserved registers.

llvm-svn: 150081
 2012-02-08 18:54:35 +00:00
Benjamin Kramer
38ab261390 Don't map registers to the invalid dwarf register (-1). It's the default value. 
X86GenRegisterInfo.inc | 1032 -------------------------------------------------
  1 file changed, 1032 deletions(-)

llvm-svn: 150080
 2012-02-08 18:46:26 +00:00
Brendon Cahoon
39fcf7dc1b Use TSFlag bit to describe instruction properties. 
Creating the isPredicated TSFlag enables the code
to use the property defined in the instruction format
instead of using a large switch statement.

llvm-svn: 150078
 2012-02-08 18:25:47 +00:00
Jakob Stoklund Olesen
74f9e359dd Keep track of register masks in LiveIntervalAnalysis. 
Build an ordered vector of register mask operands (i.e., calls) when
computing live intervals. Provide a checkRegMaskInterference() function
that computes a bit mask of usable registers for a live range.

This is a quick way of determining of a live range crosses any calls,
and restricting it to the callee saved registers if it does.
Previously, we had to discover call clobbers for each candidate register
independently.

llvm-svn: 150077
 2012-02-08 17:33:45 +00:00
Benjamin Kramer
b42d2a7238 Value initialize MCRegisterClasses. Not sure how could miss this during the MCTargetDesc refactor. 
llvm-svn: 150076
 2012-02-08 14:43:53 +00:00
Duncan Sands
230a53240a Use Use::set rather than finding the operand number of the use 
and setting that.

llvm-svn: 150074
 2012-02-08 14:10:53 +00:00
Benjamin Kramer
74f9379254 PathV2: Remove static StringRef ctors. 
llvm-svn: 150071
 2012-02-08 13:13:47 +00:00
Elena Demikhovsky
87a6e08d3a Fixed a bug in printing "cmp" pseudo ops. 
> This IR code
> %res = call <8 x float> @llvm.x86.avx.cmp.ps.256(<8 x float> %a0, <8 x float> %a1, i8 14)
> fails with assertion:
>
> llc: X86ATTInstPrinter.cpp:62: void llvm::X86ATTInstPrinter::printSSECC(const llvm::MCInst*, unsigned int, llvm::raw_ostream&): Assertion `0 && "Invalid ssecc argument!"' failed.
> 0  llc             0x0000000001355803
> 1  llc             0x0000000001355dc9
> 2  libpthread.so.0 0x00007f79a30575d0
> 3  libc.so.6       0x00007f79a23a1945 gsignal + 53
> 4  libc.so.6       0x00007f79a23a2f21 abort + 385
> 5  libc.so.6       0x00007f79a239a810 __assert_fail + 240
> 6  llc             0x00000000011858d5 llvm::X86ATTInstPrinter::printSSECC(llvm::MCInst const*, unsigned int, llvm::raw_ostream&) + 119

I added the full testing for all possible pseudo-ops of cmp.
I extended X86AsmPrinter.cpp and X86IntelInstPrinter.cpp.

You'l also see lines alignments (unrelated to this fix) in X86IselLowering.cpp from my previous check-in.

llvm-svn: 150068
 2012-02-08 08:37:26 +00:00
Craig Topper
f19c739d2d Remove a couple unneeded intrinsic patterns 
llvm-svn: 150067
 2012-02-08 08:29:30 +00:00
Chris Lattner
9cb250a113 No actual functional change here, just some clarifications: 
Clarify that contributors are agreeing to license their code under the 
license corresponding to the subproject that they are contributing to,
as requested by a potential contributor.

Also, as a drive-by, update the llvm-gcc/GPL section to mention dragonegg
and say that GPL code is all in its own repo's.

llvm-svn: 150065
 2012-02-08 07:58:38 +00:00
Craig Topper
6dbd5e534c Remove GCC builtins for vpermilp* intrinsics as clang no longer needs them. Custom lower the intrinsics to the vpermilp target specific node and remove intrinsic patterns. 
llvm-svn: 150060
 2012-02-08 06:36:57 +00:00
Chad Rosier
b70d1dfae6 [fast-isel] Add support for SUBs with non-legal types. 
llvm-svn: 150047
 2012-02-08 02:45:44 +00:00
Chad Rosier
66b35d7220 Add comment to test case. 
llvm-svn: 150046
 2012-02-08 02:30:12 +00:00
Chad Rosier
1ef78d6989 [fast-isel] Add support for ORs with non-legal types. 
llvm-svn: 150045
 2012-02-08 02:29:21 +00:00
Andrew Trick
bbd036d602 Added MachineInstr::isBundled() to check if an instruction is part of a bundle. 
llvm-svn: 150044
 2012-02-08 02:17:25 +00:00
Andrew Trick
a8f16ce003 misched: bug in debug output. 
llvm-svn: 150043
 2012-02-08 02:17:21 +00:00
Andrew Trick
e77bb4ffea whitespace 
llvm-svn: 150042
 2012-02-08 02:17:18 +00:00
Andrew Trick
b2b5b758d9 stale comment 
llvm-svn: 150041
 2012-02-08 02:17:16 +00:00
Chris Lattner
1c0f1d4d1f add an explicit section on static constructors. 
llvm-svn: 150037
 2012-02-08 01:44:00 +00:00
Kostya Serebryany
d0b4cd4c46 Don't use static CTORs for the Attributes constants, while still keeping the class type-safe 
llvm-svn: 150031
 2012-02-08 01:11:21 +00:00
Eric Christopher
4330499af4 Add support for a temporary forward decl type. We want this so we 
can rauw forward declarations if we decide to emit the full type.

Part of rdar://10809898

llvm-svn: 150024
 2012-02-08 00:22:26 +00:00
Devang Patel
5b37f2548b Remove tabs. 
llvm-svn: 150022
 2012-02-08 00:17:07 +00:00
Chad Rosier
26610906f0 [fast-isel] Add support for indirect branches. 
llvm-svn: 150014
 2012-02-07 23:56:08 +00:00
Devang Patel
c8bfdb1c36 Remove tabs. 
llvm-svn: 150012
 2012-02-07 23:33:58 +00:00
Evan Cheng
ab4ad855cc Use LEA to adjust stack ptr for Atom. Patch by Andy Zhang. 
llvm-svn: 150008
 2012-02-07 22:50:41 +00:00
Hal Finkel
0bf758d7ea Allow bugpoint to recognize -bb-vectorize 
llvm-svn: 150003
 2012-02-07 21:11:12 +00:00
David Blaikie
7503072263 Correct use of const in ParseCommandLineOptions 
llvm-svn: 149999
 2012-02-07 19:36:01 +00:00
Benjamin Kramer
26c6e4b9e0 ocaml bindings: landing pad is now the last opcode. 
llvm-svn: 149997
 2012-02-07 18:58:19 +00:00
Benjamin Kramer
6d9863be3a Add a unittest for rotating a really big APInt. 
Clang miscompiles it under certain circumstances, and it's a good exercise for APInt.

llvm-svn: 149986
 2012-02-07 16:27:39 +00:00
NAKAMURA Takumi
dde136cf30 Bitcode/BitstreamReader.h: Tweak for big endian hosts. 
llvm-svn: 149980
 2012-02-07 10:53:19 +00:00
Bill Wendling
cd6addef26 Rephrase to add clarity. 
llvm-svn: 149972
 2012-02-07 08:42:29 +00:00
Anat Shemer
8a46f38a55 test commit 
llvm-svn: 149971
 2012-02-07 08:18:05 +00:00
Evan Cheng
653966d99b Do not fold ADD / SUB into load / store (to form pre-indexed, post-indexed 
load / store) if the ADD / SUB has a live definition of CPSR.

Bug reported by David Meyer. Alas, no test case.

llvm-svn: 149970
 2012-02-07 07:09:28 +00:00
Craig Topper
a8a69356e1 Add instruction selection for 256-bit VPSHUFD and 128-bit VPERMILPS/VPERMILPD. 
llvm-svn: 149968
 2012-02-07 06:28:42 +00:00
Craig Topper
639b152ca5 Convert assert(0) to llvm_unreachable 
llvm-svn: 149967
 2012-02-07 05:05:23 +00:00