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Author SHA1 Message Date
Dan Gohman
b4699b3002 Add some extra friend declarations to fix a gcc-4.0 compile error. 
This is a temporary fix, until more elaborate changes are ready.

llvm-svn: 109593
 2010-07-28 17:09:24 +00:00
Gabor Greif
ecd9b45b05 simplify 
llvm-svn: 109589
 2010-07-28 15:52:43 +00:00
Daniel Dunbar
4cf25fa76a 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.

llvm-svn: 109586
 2010-07-28 15:40:20 +00:00
Gabor Greif
4909c0a1f1 simplify 
llvm-svn: 109585
 2010-07-28 15:31:37 +00:00
Gabor Greif
16a98fddef use Value* constructor of CallSite to create potentially improper site, and test that 
llvm-svn: 109581
 2010-07-28 14:28:18 +00:00
Gabor Greif
9bb43864b1 use Value* constructor of CallSite to create potentially improper site, and test that 
llvm-svn: 109580
 2010-07-28 12:35:54 +00:00
Gabor Greif
f6966fafe3 use Value* constructor of CallSite to create potentially improper site 
llvm-svn: 109579
 2010-07-28 12:19:46 +00:00
Gabor Greif
e27a194ce5 simplify 
llvm-svn: 109578
 2010-07-28 10:57:28 +00:00
Gabor Greif
6dc7dec8c1 simplify 
llvm-svn: 109577
 2010-07-28 10:46:09 +00:00
Gabor Greif
37e8f2b3b8 we are supposed to only create proper CallSites from an instruction (esp. CallInst and InvokeInst) 
llvm-svn: 109576
 2010-07-28 10:44:59 +00:00
Eric Christopher
1b1705cfa9 Filter out patterns that have PredicateOperands. 
llvm-svn: 109572
 2010-07-28 01:52:23 +00:00
Dan Gohman
2bea1e1572 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.

llvm-svn: 109570
 2010-07-28 01:09:07 +00:00
Dan Gohman
9a6ea54d94 Make SCEVCallbackVH::allUsesReplacedWith unconditionally delete 
the old value.

llvm-svn: 109567
 2010-07-28 00:28:25 +00:00
Nate Begeman
133820e806 Implement a vectorized algorithm for <16 x i8> << <16 x i8> 
This is about 4x faster and smaller than the existing scalarization.

llvm-svn: 109566
 2010-07-28 00:21:48 +00:00
Dan Gohman
2dcafa2402 Add a comment. 
llvm-svn: 109565
 2010-07-28 00:21:18 +00:00
Owen Anderson
2d39891e91 Rearrange several datastructures in LazyValueInfo to improve compile time. 
This is still not perfect, but better than it was before.

llvm-svn: 109563
 2010-07-27 23:58:11 +00:00
Owen Anderson
fd7fc038ac Fill out the interface of DenseSet a bit. 
llvm-svn: 109562
 2010-07-27 23:55:47 +00:00
Stuart Hastings
d2b44f0739 Testcase for r109556. Radar 8198362. 
llvm-svn: 109557
 2010-07-27 23:15:25 +00:00
Gabor Greif
ec0c7b2427 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

llvm-svn: 109553
 2010-07-27 22:53:28 +00:00
Nate Begeman
068e932975 ~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

llvm-svn: 109549
 2010-07-27 22:37:06 +00:00
Gabor Greif
8c197e5dbb recommit simplification (originally r109504, backed out in r109508) now that problem in CallSiteBase is fixed 
llvm-svn: 109547
 2010-07-27 22:02:00 +00:00
Gabor Greif
262e51d31d remove bogus assert, use static_cast for additional checking 
left two new asserts commented out, because they would fire in clang, have to hunt those down first

llvm-svn: 109544
 2010-07-27 21:46:11 +00:00
Devang Patel
38a7221118 It is FE's responsibility to emit proper directory name. 
llvm-svn: 109538
 2010-07-27 20:51:15 +00:00
Chris Lattner
1cc20eea6f make lookup failures not fatal. 
llvm-svn: 109530
 2010-07-27 18:59:50 +00:00
Jim Grosbach
2f4adcee5f Grammar 
llvm-svn: 109525
 2010-07-27 18:36:27 +00:00
Devang Patel
186cbcd229 Update tests to not rely on input file's absolute path. 
llvm-svn: 109521
 2010-07-27 18:13:53 +00:00
Nate Begeman
15fe179ecb 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.

llvm-svn: 109519
 2010-07-27 18:02:18 +00:00
Jim Grosbach
4d81e796cb 80 column 
llvm-svn: 109513
 2010-07-27 17:38:47 +00:00
Jim Grosbach
7e561eb81c fix typo 
llvm-svn: 109511
 2010-07-27 17:14:29 +00:00
Gabor Greif
2778a21978 recommit simplification (r109502, backed out r109509); seems to innocent 
llvm-svn: 109510
 2010-07-27 16:44:23 +00:00
Gabor Greif
c95e84ab61 back out this too to restore the bots 
llvm-svn: 109509
 2010-07-27 15:56:07 +00:00
Gabor Greif
981f3d3a31 back out r109504, breaks the bots 
llvm-svn: 109508
 2010-07-27 15:18:11 +00:00
Gabor Greif
394841cea8 simplify: CallSite::get --> CallSite constructor 
llvm-svn: 109506
 2010-07-27 15:02:37 +00:00
Gabor Greif
90a627cfaa simplify 
llvm-svn: 109504
 2010-07-27 14:38:38 +00:00
Gabor Greif
aaf68e2e5a use ImmutableCallSite for const-corrgoodness 
llvm-svn: 109503
 2010-07-27 14:15:29 +00:00
Gabor Greif
ee90e05139 simplify 
llvm-svn: 109502
 2010-07-27 13:31:22 +00:00
Mikhail Glushenkov
61338a536b Fix silent failure with no input files. 
llvm-svn: 109500
 2010-07-27 11:19:40 +00:00
Mikhail Glushenkov
33c561c22c Return -1 only on failure to execute a program. 
Also fix some comments.

llvm-svn: 109499
 2010-07-27 11:19:36 +00:00
Duncan Sands
a5314238d6 In commit 91421, isPod was changed from false to true for these value handles. 
Change it back again: destructors and constructors need to be run.

llvm-svn: 109498
 2010-07-27 09:09:05 +00:00
Tobias Grosser
cac9d6f302 Make coff-dump.py executable and add python as executable for this script. 
This fixes the MC/COFF/basic-coff.ll test case.

llvm-svn: 109497
 2010-07-27 09:01:26 +00:00
Tobias Grosser
ebc6c0cf50 RegionInfo: Add getMaxRegionExit() 
getMaxRegionExit returns the exit of the maximal refined region starting
at a specific basic block.

llvm-svn: 109496
 2010-07-27 08:39:43 +00:00
Duncan Sands
816457c7f3 After updating value handles for RAUW, check that no weak or tracking handles 
are still on the list.  This might happen if a CallbackVH created some new value
handles for the old value when doing RAUW.  Barf if it occurs, since it is almost
certainly a mistake.

llvm-svn: 109495
 2010-07-27 06:53:14 +00:00
Michael J. Spencer
33ac353ce4 Make MC use Windows COFF on Windows and add tests. 
llvm-svn: 109494
 2010-07-27 06:46:15 +00:00
Tobias Grosser
16789d79fe Add function to query RegionInfo about loops. 
* contains(Loop), * getOutermostLoop()
* Improve getNameStr() to return a sensible name, if basic blocks are not named.

llvm-svn: 109490
 2010-07-27 04:17:13 +00:00
Jakob Stoklund Olesen
b056152ccf The isLoadFromStackSlot and isStoreToStackSlot have no way of reporting 
subregister operands like this:

%reg1040:sub_32bit<def> = MOV32rm <fi#-2>, 1, %reg0, 0, %reg0, %reg1040<imp-def>; mem:LD4[FixedStack-2](align=8)

Make them return false when subreg operands are present. VirtRegRewriter is
making bad assumptions otherwise.

This fixes PR7713.

llvm-svn: 109489
 2010-07-27 04:17:01 +00:00
Jakob Stoklund Olesen
fa4bcde9d9 Add assertions that expose the PR7713 miscompilation: Accessing a stack slot 
with a too-big register class.

llvm-svn: 109488
 2010-07-27 04:16:58 +00:00
Bill Wendling
bb2398331b It's better to have the arrays, which would trigger the creation of stack 
protectors, to be near the stack protectors on the stack. Accomplish this by
tagging the stack object with a predicate that indicates that it would trigger
this. In the prolog-epilog inserter, assign these objects to the stack after the
stack protector but before the other objects.

llvm-svn: 109481
 2010-07-27 01:55:19 +00:00
Dan Gohman
66b6f7d702 Use AssertingVH for InsertedValues and InsertedPostIncValues, to verify 
that the values they refer to aren't being deleted underneath them.

Make sure these containters get cleared by clear(), which IndVarSimplify
and LSR both use before deleting instructions.

llvm-svn: 109478
 2010-07-27 01:19:06 +00:00
Owen Anderson
a3f9dea4c7 (Hopefully) One last test. 
llvm-svn: 109473
 2010-07-27 00:04:55 +00:00
Owen Anderson
f147c9caa8 Another test. 
llvm-svn: 109472
 2010-07-27 00:00:47 +00:00