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618898e933
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40367 Commits

Author SHA1 Message Date
Eli Friedman
618898e933 PR7750: !CExpr->isNullValue() only properly computes whether CExpr is nonnull 
if CExpr is a ConstantInt.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109773 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-29 18:03:33 +00:00
Nate Begeman
692433bc2d Add intrinsics __builtin_arm_qadd & __builtin_arm_qsub to allow access to the QADD & QSUB instructions. 
Behave identically to __qadd & __qsub RealView instruction intrinsics.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109770 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-29 17:56:55 +00:00
Benjamin Kramer
1abcd06856 Plug the remaining MC leaks by giving MCObjectStreamer/MCAsmStreamer ownership of the TargetAsmBackend and the MCCodeEmitter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109767 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-29 17:48:06 +00:00
Dale Johannesen
c46a5f20c5 Comment typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109765 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-29 17:45:24 +00:00
Jakob Stoklund Olesen
b2eeed7464 Revert r109652, and remove the offending assert in loadRegFromStackSlot instead. 
We do sometimes load from a too small stack slot when dealing with x86 arguments
(varargs and smaller-than-32-bit args). It looks like we know what we are doing
in those cases, so I am going to remove the assert instead of artifically
enlarging stack slot sizes.

The assert in storeRegToStackSlot stays in. We don't want to write beyond the
bounds of a stack slot.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109764 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-29 17:42:27 +00:00
Daniel Dunbar
a685582048 CrashRecovery: Use ThreadLocal::erase() instead of set(0). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109752 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-29 15:24:21 +00:00
Benjamin Kramer
3bce5adb32 Stop leaking std::strings in GetDwarfFile. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109746 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-29 13:53:19 +00:00
Benjamin Kramer
808ecfce6a COFFObjectWriter: Don't leak COFFSymbols and COFFSections. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109745 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-29 11:57:59 +00:00
Daniel Dunbar
dade28ee4e Make sure to include config.h, to pickup LLVM_ON_WIN32. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109721 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-29 01:52:04 +00:00
Daniel Dunbar
56491303a6 MC: Destroy Macro instances. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109720 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-29 01:51:55 +00:00
Eric Christopher
e6cbfa6b09 Speculatively revert r109705 since it seems to be causing some build bot 
angst.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109718 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-29 01:25:38 +00:00
Daniel Dunbar
d9082dfd9a CrashRecoveryContext: Add a simple POSIX implementation. 
- This works, but won't handle crashes on stack overflow, or signals delivered
   to a thread other than the one that crashed. The latter is particular annoying
   on Darwin, because SIGABRT tends to go to the main thread.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109717 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-29 01:21:47 +00:00
Jakob Stoklund Olesen
4bd94f7bbe Fix a bug in the -regalloc=fast handling of exotic two-address instruction with 
multiple defs, like t2LDRSB_POST.

The first def could accidentally steal the physreg that the second, tied def was
required to be allocated to.

Now, the tied use-def is treated more like an early clobber, and the physreg is
reserved before allocating the other defs.

This would never be a problem when the tied def was the only def which is the
usual case.

This fixes MallocBench/gs for thumb2 -O0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109715 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-29 00:52:19 +00:00
Dan Gohman
c6743207e2 Factor out some of the code for updating old SCEVUnknown values, and 
extend it to handle the case where multiple RAUWs affect a single
SCEVUnknown.

Add a ScalarEvolution unittest to test for this situation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109705 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-29 00:17:55 +00:00
Owen Anderson
e2fb451dbb Pass the queried value by argument rather than in a member, in preparation for supporting PHI translation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109701 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 23:50:08 +00:00
Jim Grosbach
542f642684 ARM mode version of r109693. Remove incorrect substitution pattern for UXTB16. It wrongly assumed the input shift was actually a rotate. rdar://8240138 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109696 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 23:25:44 +00:00
Jim Grosbach
7946494ceb Remove incorrect substitution pattern for UXTB16. It wrongly assumed the input shift was actually a rotate. rdar://8240138 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109693 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 23:17:45 +00:00
Jim Grosbach
f0d7e36691 Remove dead prototype 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109691 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 23:16:12 +00:00
Gabor Greif
7d3056b160 simplify by using CallSite constructors; virtually eliminates CallSite::get from the tree 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109687 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 22:50:26 +00:00
Owen Anderson
826c148aa5 Add an erase() method to llvm::ThreadLocal. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109686 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 22:49:43 +00:00
Owen Anderson
9da5c997c0 Get rid of LVIQuery as a distinct data structure, so that we don't have to initialize a new set of maps on every query. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109679 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 22:07:25 +00:00
Dan Gohman
6bbe671e1c Make GlobalValue alignment consistent with load, store, and alloca 
alignment, fixing silent truncation of alignment values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109653 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 20:56:48 +00:00
Jakob Stoklund Olesen
4c010ec851 Create a fixed stack object for varargs that is as large as any register. 
The size of this object isn't used for anything - technically it is of variable
size.

This avoids a false positive from the assert in
X86InstrInfo::loadRegFromStackSlot, and fixes PR7735.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109652 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 20:55:38 +00:00
Kevin Enderby
7cbf73a73f Added first bit of support for the dwarf .file directive. This patch collects 
the info from the .file directive and makes file and directory tables that
will eventually be put out as part of the dwarf info in the output file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109651 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 20:55:35 +00:00
Daniel Dunbar
329878f4dd RegionInfo: Make sure to free cached nodes; Tobias, please check! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109650 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 20:28:50 +00:00
Daniel Dunbar
36880e704f MC: Put back the MCFragment vtable, so subclasses are destroyed properly (duh). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109649 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 20:28:45 +00:00
Dan Gohman
138aa2a82b Define a maximum supported alignment value for load, store, and 
alloca instructions (constrained by their internal encoding),
and add error checking for it. Fix an instcombine bug which
generated huge alignment values (null is infinitely aligned).
This fixes undefined behavior noticed by John Regehr.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109643 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 20:12:04 +00:00
Jakob Stoklund Olesen
a0c5bf19bf Print out the regclass of any virtual registers used by a machine instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109608 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 18:35:46 +00:00
Douglas Gregor
c19d865474 Unbreak my CMake build, say you'll compile for me again... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109598 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 17:17:46 +00:00
Dan Gohman
6d3b922670 Fix this code to avoid decrementing an iterator past the beginning 
of a std::vector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109597 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 17:15:36 +00:00
Dan Gohman
33591af872 When user code intentionally dereferences null, the alignment of the 
dereference is theoretically infinite. Put a cap on the computed
alignment to avoid overflow, noticed by John Regehr.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109596 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 17:14:23 +00:00
Dan Gohman
67d0498d53 Do GEP offset calculations with unsigned math rather than signed math 
to avoid undefined behavior on overflow, noticed by John Regehr.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109594 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 17:11:36 +00:00
Gabor Greif
f5e13095fa simplify 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109589 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 15:52:43 +00:00
Daniel Dunbar
a309dac868 Support: Add CrashRecoveryContext helper object. 
- Designed as a simple wrapper to allow clients to attempt to catch crashes
   (memory errors, assertion violations, etc.) and do some kind of recovery.

 - Currently doesn't actually attempt to catch crashes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109586 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 15:40:20 +00:00
Gabor Greif
5d4b32ef96 simplify 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109585 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 15:31:37 +00:00
Gabor Greif
d09475c226 use Value* constructor of CallSite to create potentially improper site, and test that 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109581 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 14:28:18 +00:00
Gabor Greif
ce4a62639f use Value* constructor of CallSite to create potentially improper site, and test that 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109580 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 12:35:54 +00:00
Gabor Greif
3737984e95 use Value* constructor of CallSite to create potentially improper site 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109579 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 12:19:46 +00:00
Gabor Greif
30ae792f06 simplify 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109578 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 10:57:28 +00:00
Gabor Greif
b0686ea808 simplify 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109577 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 10:46:09 +00:00
Dan Gohman
81f9121cda Make SCEVCallbackVH::allUsesReplacedWith update the old SCEVUnknown 
object, as it may still be referenced by SCEVs not cleaned up by the
use list traversal.

Also, in ScalarEvolution::forgetValue, only check for a SCEVUnknown
object for the original value, not for any value in the use list,
because other SCEVUnknown values aren't necessary obsolete at that
point.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109570 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 01:09:07 +00:00
Dan Gohman
59846aced2 Make SCEVCallbackVH::allUsesReplacedWith unconditionally delete 
the old value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109567 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 00:28:25 +00:00
Nate Begeman
51409214d7 Implement a vectorized algorithm for <16 x i8> << <16 x i8> 
This is about 4x faster and smaller than the existing scalarization.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109566 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 00:21:48 +00:00
Owen Anderson
9a65dc9968 Rearrange several datastructures in LazyValueInfo to improve compile time. 
This is still not perfect, but better than it was before.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109563 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-27 23:58:11 +00:00
Gabor Greif
b344a346f1 reintroduce original (asserting) semantics of CallSite(Instruction *II) 
add instead a CallSite(Value* V) constructor that is consistent with ImmutableCallSize
and use that one in client code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109553 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-27 22:53:28 +00:00
Nate Begeman
bdcb5afb77 ~40% faster vector shl <4 x i32> on SSE 4.1 Larger improvements for smaller types coming in future patches. 
For:

define <2 x i64> @shl(<4 x i32> %r, <4 x i32> %a) nounwind readnone ssp {
entry:
  %shl = shl <4 x i32> %r, %a                     ; <<4 x i32>> [#uses=1]
  %tmp2 = bitcast <4 x i32> %shl to <2 x i64>     ; <<2 x i64>> [#uses=1]
  ret <2 x i64> %tmp2
}

We get:

_shl:                                   ## @shl
	pslld	$23, %xmm1
	paddd	LCPI0_0, %xmm1
	cvttps2dq	%xmm1, %xmm1
	pmulld	%xmm1, %xmm0
	ret

Instead of:

_shl:                                   ## @shl
	pshufd	$3, %xmm0, %xmm2
	movd	%xmm2, %eax
	pshufd	$3, %xmm1, %xmm2
	movd	%xmm2, %ecx
	shll	%cl, %eax
	movd	%eax, %xmm2
	pshufd	$1, %xmm0, %xmm3
	movd	%xmm3, %eax
	pshufd	$1, %xmm1, %xmm3
	movd	%xmm3, %ecx
	shll	%cl, %eax
	movd	%eax, %xmm3
	punpckldq	%xmm2, %xmm3
	movd	%xmm0, %eax
	movd	%xmm1, %ecx
	shll	%cl, %eax
	movd	%eax, %xmm2
	movhlps	%xmm0, %xmm0
	movd	%xmm0, %eax
	movhlps	%xmm1, %xmm1
	movd	%xmm1, %ecx
	shll	%cl, %eax
	movd	%eax, %xmm0
	punpckldq	%xmm0, %xmm2
	movdqa	%xmm2, %xmm0
	punpckldq	%xmm3, %xmm0
	ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109549 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-27 22:37:06 +00:00
Gabor Greif
622b7cf147 recommit simplification (originally r109504, backed out in r109508) now that problem in CallSiteBase is fixed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109547 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-27 22:02:00 +00:00
Devang Patel
37032350c8 It is FE's responsibility to emit proper directory name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109538 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-27 20:51:15 +00:00
Jim Grosbach
977fa34df8 Grammar 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109525 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-27 18:36:27 +00:00
Nate Begeman
e0efc216eb Fix a crash in the dag combiner caused by ConstantFoldBIT_CONVERTofBUILD_VECTOR calling itself 
recursively and returning a SCALAR_TO_VECTOR node, but assuming the input was always a BUILD_VECTOR.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109519 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-27 18:02:18 +00:00