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Author SHA1 Message Date
Nadav Rotem
f01cad69c1 Document change. Describe the pass and some papers that inspired the design of the pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166386 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-21 04:04:25 +00:00
Nadav Rotem
5a418ba5f5 Vectorizer: fix a bug in the classification of induction/reduction phis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166384 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-21 02:38:01 +00:00
Lang Hames
64486737d5 Allow the commuted form of tied-operand constraints in tablegen ("$dst = $src", 
rather than "$src = $dst").


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166382 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-20 22:44:13 +00:00
Nadav Rotem
ccaccfa8bf Fix an infinite loop in the loop-vectorizer. 
PR14134.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166379 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-20 20:45:01 +00:00
Dmitri Gribenko
b8f2d82403 Document current Doxygen use practices in Coding Standards. Mostly it is 
obvious stuff and most new code being committed conforms to that.  Some old
code does not; this might cause confusion and this is the motivation to
document the correct guidelines.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166378 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-20 13:27:43 +00:00
Benjamin Kramer
63a4c24616 Symbol hygiene: Make sure declarations and definitions match, make helper functions static. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166376 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-20 12:53:26 +00:00
Benjamin Kramer
2a13242b20 SROA: Simplify code. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166375 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-20 12:04:57 +00:00
Benjamin Kramer
82a1833865 InstCombine: Fix an edge case where constant icmps could sneak into ConstantFoldInstOperands and crash. 
Have to refactor the ConstantFolder interface one day to define bugs like this away. Fixes PR14131.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166374 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-20 08:43:52 +00:00
Nadav Rotem
bf8772ed2c Vectorize: teach cavVectorizeMemory to distinguish between A[i]+=x and A[B[i]]+=x. 
If the pointer is consecutive then it is safe to read and write. If the pointer is non-loop-consecutive then
it is unsafe to vectorize it because we may hit an ordering issue.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166371 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-20 08:26:33 +00:00
Nadav Rotem
71a1482239 Fix a typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166367 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-20 05:03:27 +00:00
Nadav Rotem
e6748f91ea Vectorizer: refactor the memory checks to a new function. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166366 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-20 04:59:06 +00:00
Nadav Rotem
2dc1921e9b Vectorization docs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166364 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-20 02:34:34 +00:00
Chad Rosier
4e472d2277 [ms-inline asm] Rename AsmOpRewrite to just AsmRewrite to be more generic. No functional change intended. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166360 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-20 01:02:45 +00:00
Chad Rosier
17feeec8d8 [ms-inline asm] If the state of the parser is ignore, then don't parse the 
inline assembly.  Also make sure the remove the ignored statements from the IR.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166357 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-20 00:47:08 +00:00
Nadav Rotem
4ade92b614 LoopVectorize: Keep the IRBuilder on the stack. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166354 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 23:27:19 +00:00
Chad Rosier
13090f70fc [ms-inline asm] Continue parsing even when we're in an ignore block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166352 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 23:15:00 +00:00
Nadav Rotem
5dbe64e2bc Vectorizer: Add support for loop reductions. 
For example:

  for (i=0; i<n; i++)
   sum += A[i] +  B[i] + i;



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166351 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 23:05:40 +00:00
Shuxin Yang
cfc6cb0c61 1. Remove noreturn attribute from __builtin_debugtrap(). 
(The change at Clang side was committed in r166345)

2. Cosmetic change in order to conform to coding standards. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166350 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 23:00:20 +00:00
Chad Rosier
ab450e42f1 [ms-inline asm] Reset the opcode prior to parsing a statement. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166349 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 22:57:33 +00:00
Akira Hatanaka
30580cea43 [mips] Use 64-bit registers to return an sret pointer if target ABI is N64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166344 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 22:11:40 +00:00
Eric Christopher
60f0819cb5 Grammar-o. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166343 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 22:10:54 +00:00
Akira Hatanaka
2b861be96e [mips] Add code to do tail call optimization. 
Currently, it is enabled only if option "enable-mips-tail-calls" is given and
all of the callee's arguments are passed in registers.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166342 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 21:47:33 +00:00
Akira Hatanaka
e050902ca7 [mips] Fix TAILCALL's operand node type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166341 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 21:30:15 +00:00
Nadav Rotem
a04a4a79ea revert r166264 because the LTO build is still failing 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166340 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 21:28:43 +00:00
Akira Hatanaka
e06ce4c2c4 [mips] Delete MipsFunctionInfo::MaxCallFrameSize which is no longer used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166339 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 21:18:38 +00:00
Akira Hatanaka
01a75c46e3 [mips] Add tail call instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166338 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 21:14:34 +00:00
Akira Hatanaka
1f027135a8 [mips] Make the branch nodes used in jump instructions a template parameter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166337 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 21:11:03 +00:00
Akira Hatanaka
58d1e3f72a Add node and enum for mips tail call. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166318 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 20:59:39 +00:00
Chad Rosier
96d58e64cf [ms-inline asm] Have the TargetParser callback to Sema to determine the size of 
a memory operand.  Retain this information and then add the sizing directives
to the IR.  This allows the backend to do proper instruction selection.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166316 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 20:57:14 +00:00
Michael Liao
e2b95ebfb0 Add 'IntrNoReturn' for longjmp intrinsics 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166314 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 20:43:54 +00:00
Benjamin Kramer
0aae4bd0fc SimplifyLibcalls: The return value of ffsll is always i32, even when the input is zero. 
Fixes PR13028.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166313 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 20:43:44 +00:00
Micah Villmow
28ce1cc183 Fix a build error for ocaml bindings that was introduced with the TargetData --> DataLayout changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166309 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 20:36:22 +00:00
Chad Rosier
faf547053b [ms-inline asm] Add a MCAsmParserSemaCallback to the TargetAsmParser. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166308 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 20:35:42 +00:00
Daniel Dunbar
6b283ea945 lit: Rename the valgrind leaks feature to match what is currently used 
(vg_leak).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166306 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 20:29:30 +00:00
Daniel Dunbar
f793fbc569 lit: Remove support for XTARGET. 
- The XTARGET feature (inherited from old DG tests) was just confusing (and
   barely ever used). The same effect can now be achieved with a combination of
   the more useful REQUIRES and XFAIL.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166305 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 20:29:27 +00:00
Daniel Dunbar
f854597fc1 lit: Add 'valgrind' and 'valgrind-leaks' features when valgrind is used. 
- These can be used with the XFAIL options.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166303 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 20:12:00 +00:00
Daniel Dunbar
9f4acd0aab tests: Stop mangling '-vg' into the triple, we don't use this currently. 
- Also, lit is going to get a valgrind feature, instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166302 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 20:11:56 +00:00
Shuxin Yang
970755e519 This patch is to fix radar://8426430. It is about llvm support of __builtin_debugtrap() 
which is supposed to consistently raise SIGTRAP across all systems. In contrast,
__builtin_trap() behave differently on different systems. e.g. it raises SIGTRAP on ARM, and
SIGILL on X86. The purpose of __builtin_debugtrap() is to consistently provide "trap"
functionality, in the mean time preserve the compatibility with on gcc on __builtin_trap().

  The X86 backend is already able to handle debugtrap(). This patch is to:
  1) make front-end recognize "__builtin_debugtrap()" (emboddied in the one-line change to Clang).
  2) In DAG legalization phase, by default, "debugtrap" will be replaced with "trap", which
     make the __builtin_debugtrap() "available" to all existing ports without the hassle of
     changing their code.
  3) If trap-function is specified (via -trap-func=xyz to llc), both __builtin_debugtrap() and
     __builtin_trap() will be expanded into the function call of the specified trap function.
    This behavior may need change in the future.

  The provided testing-case is to make sure 2) and 3) are working for ARM port, and we
already have a testing case for x86. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166300 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 20:11:16 +00:00
Chad Rosier
9abfbdfc77 [ms-inline asm] Add the isParsingInlineAsm() function to the MCAsmTargetParser. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166292 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 17:57:49 +00:00
Benjamin Kramer
7182126b0f Indvars: Don't recursively delete instruction during BB iteration. 
This can invalidate the iterators leading to use after frees and crashes.
Fixes PR12536.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166291 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 17:53:54 +00:00
Daniel Dunbar
de7c37efe2 Fix some doc-os. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166290 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 17:23:39 +00:00
Daniel Dunbar
7badf45739 lit: Propagate TERM variable in environment, some tools can do really obscure 
odd things if this is missing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166289 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 17:23:34 +00:00
Michael Liao
facace808c Lower BUILD_VECTOR to SHUFFLE + INSERT_VECTOR_ELT for X86 
- If INSERT_VECTOR_ELT is supported (above SSE2, either by custom
  sequence of legal insn), transform BUILD_VECTOR into SHUFFLE +
  INSERT_VECTOR_ELT if most of elements could be built from SHUFFLE with few
  (so far 1) elements being inserted.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166288 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 17:15:18 +00:00
Benjamin Kramer
239fd44f7a SCEVExpander: Don't crash when trying to merge two constant phis. 
Just constant fold them so they can't cause any trouble. Fixes PR12627.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166286 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 16:37:30 +00:00
Alexey Samsonov
34674fea97 [ASan] Support comments in ASan/TSan blacklist file as lines starting with # 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166283 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 15:24:46 +00:00
Evgeniy Stepanov
4a2dec05ce Move SplitBlockAndInsertIfThen to BasicBlockUtils. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166278 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 10:48:31 +00:00
Benjamin Kramer
17f68c52d2 LoopVectorize: Keep the IRBuilder on the stack. 
No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166274 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 08:42:02 +00:00
Stepan Dyatkovskiy
0d3c8d5d16 ARM: 
Removed extra stack frame object for fixed byval arguments,
VarArgsStyleRegisters invocation was reworked due to some improper usage in
past. PR14099 also demonstrates it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166273 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 08:23:06 +00:00
Nick Lewycky
0d7d11d57f Pacify -Wnon-virtual-dtor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166270 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 07:00:09 +00:00
Kostya Serebryany
bd0052a0f2 [asan] make sure asan erases old unused allocas after it created a new one. This became important after the recent move from ModulePass to FunctionPass because no cleanup is happening after asan pass any more. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166267 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 06:20:53 +00:00