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Author SHA1 Message Date
Chris Lattner 5cac0f71ca update this. 
llvm-svn: 113116
 2010-09-05 20:22:09 +00:00
Chris Lattner 1edf7434cf more cleanups 
llvm-svn: 113115
 2010-09-05 20:13:07 +00:00
Chris Lattner e6214557e7 Change lower atomic pass to use IntrinsicInst to simplify it a bit. 
llvm-svn: 113114
 2010-09-05 20:10:47 +00:00
Chris Lattner 05ef361b5e eliminate some non-obvious casts. UndefValue isa Constant. 
llvm-svn: 113113
 2010-09-05 20:03:09 +00:00
Chris Lattner 72d283c826 fix PR8063, a crash in globalopt in the malloc analysis code. 
llvm-svn: 113109
 2010-09-05 17:20:46 +00:00
Lang Hames 64a4a13617 Added initialisers for reduction rule counters. 
llvm-svn: 113108
 2010-09-05 13:42:32 +00:00
Nick Lewycky e3ac69eca3 Fix warning reported by MSVC++ builder. 
llvm-svn: 113106
 2010-09-05 09:11:38 +00:00
Nick Lewycky f3a07ec394 Switch FnSet to containing the ComparableFunction instead of a pointer to one. 
This reduces malloc traffic (yay!) and removes MergeFunctionsEqualityInfo.

llvm-svn: 113105
 2010-09-05 09:00:32 +00:00
Nick Lewycky 0095937b13 Fix many bugs when merging weak-strong and weak-weak pairs. We now merge all 
strong functions first to make sure they're the canonical definitions and then
do a second pass looking only for weak functions.

llvm-svn: 113104
 2010-09-05 08:22:49 +00:00
Chris Lattner eeba0c73e5 implement rdar://6653118 - fastisel should fold loads where possible. 
Since mem2reg isn't run at -O0, we get a ton of reloads from the stack,
for example, before, this code:

int foo(int x, int y, int z) {
  return x+y+z;
}

used to compile into:

_foo:                                   ## @foo
	subq	$12, %rsp
	movl	%edi, 8(%rsp)
	movl	%esi, 4(%rsp)
	movl	%edx, (%rsp)
	movl	8(%rsp), %edx
	movl	4(%rsp), %esi
	addl	%edx, %esi
	movl	(%rsp), %edx
	addl	%esi, %edx
	movl	%edx, %eax
	addq	$12, %rsp
	ret

Now we produce:

_foo:                                   ## @foo
	subq	$12, %rsp
	movl	%edi, 8(%rsp)
	movl	%esi, 4(%rsp)
	movl	%edx, (%rsp)
	movl	8(%rsp), %edx
	addl	4(%rsp), %edx    ## Folded load
	addl	(%rsp), %edx     ## Folded load
	movl	%edx, %eax
	addq	$12, %rsp
	ret

Fewer instructions and less register use = faster compiles.

llvm-svn: 113102
 2010-09-05 02:18:34 +00:00
Jakob Stoklund Olesen 313358fef9 Remove dead code. 
Clobber ranges are no longer used when joining physical registers.
Instead, all aliases are checked for interference.

llvm-svn: 113084
 2010-09-04 21:09:33 +00:00
Chris Lattner f20ca8028d fix this to work with allocators that have reference type with compilers 
that diagnose invalid references to references.

llvm-svn: 113078
 2010-09-04 18:45:02 +00:00
Chris Lattner 0963048185 dead method. 
llvm-svn: 113077
 2010-09-04 18:19:16 +00:00
Chris Lattner 2f095c636a delete dead code. 
llvm-svn: 113075
 2010-09-04 18:17:16 +00:00
Chris Lattner 65b48b5dfc zap dead code. 
llvm-svn: 113073
 2010-09-04 18:12:00 +00:00
Chris Lattner 55118e7224 remove dead code, mblaze uses SelectAddrRegImm/SelectAddrRegReg, 
not SelectAddr

llvm-svn: 113072
 2010-09-04 18:02:47 +00:00
Chris Lattner b1951ea1fe zap dead code. 
llvm-svn: 113071
 2010-09-04 17:45:58 +00:00
Bruno Cardoso Lopes c6accda78e Remove the last bit of isShuffleMaskLegal checks and improve the comment regarding mmx shuffles 
llvm-svn: 113059
 2010-09-04 02:58:56 +00:00
Bruno Cardoso Lopes 731bcc1abf make explicit that we not handle several mmx shuffles 
llvm-svn: 113058
 2010-09-04 02:50:13 +00:00
Dan Gohman 487e250109 Fix LoopSimplify to notify ScalarEvolution when splitting a loop backedge 
into an inner loop, as the new loop iteration may differ substantially.
This fixes PR8078.

llvm-svn: 113057
 2010-09-04 02:42:48 +00:00
Bruno Cardoso Lopes 20779ee157 Emit target specific nodes to handle palignr. Do not touch it for MMX versions yet. 
llvm-svn: 113056
 2010-09-04 02:36:07 +00:00
Bruno Cardoso Lopes cff7cd18ab Emit target specific nodes to handle splats starting at zero indicies 
llvm-svn: 113055
 2010-09-04 02:02:14 +00:00
Bruno Cardoso Lopes 95759917eb Emit target specific nodes for isPSHUFHWMask and isPSHUFLWMask 
llvm-svn: 113050
 2010-09-04 01:36:45 +00:00
Bruno Cardoso Lopes 2b57008c72 Emit target specific nodes for isSHUFPMask 
llvm-svn: 113048
 2010-09-04 01:22:57 +00:00
Bruno Cardoso Lopes 2f7af36134 Previous isMOVLMask matching already emits targets nodes, remove check 
llvm-svn: 113047
 2010-09-04 00:50:08 +00:00
Bruno Cardoso Lopes 9f8e704151 One more check from the original isShuffleMaskLegal goes away 
llvm-svn: 113045
 2010-09-04 00:46:16 +00:00
Bruno Cardoso Lopes 16959372bb Remove a duplicated but useless check that i've inserted in the previous commit. 
llvm-svn: 113044
 2010-09-04 00:43:12 +00:00
Bruno Cardoso Lopes 44578d38d3 Refactor some code and remove the extra checks for unpckl_undef and unpckh_undef 
llvm-svn: 113043
 2010-09-04 00:39:43 +00:00
Chris Lattner 50506787d1 fix a bug in my licm rewrite when a load from the promoted memory 
location is being re-stored to the memory location.  We would get
a dangling pointer from the SSAUpdate data structure and miss a 
use.  This fixes PR8068

llvm-svn: 113042
 2010-09-04 00:12:30 +00:00
Bruno Cardoso Lopes 7829d0e74b Remove check for unpckh mask 
llvm-svn: 113035
 2010-09-03 23:32:47 +00:00
Bruno Cardoso Lopes d1dacc57aa Remove check for unpckl mask 
llvm-svn: 113034
 2010-09-03 23:31:50 +00:00
Bruno Cardoso Lopes 207b9d6218 Inline isShuffleMaskLegal into LowerVECTOR_SHUFFLE, so we can start 
checking each standalone condition and decide whether emit target
specific nodes or remove the condition if it's already matched before.

llvm-svn: 113031
 2010-09-03 23:24:06 +00:00
Owen Anderson c91c1a205a Propagate non-local comparisons. Fixes PR1757. 
llvm-svn: 113025
 2010-09-03 22:47:08 +00:00
Eric Christopher 0acd994f90 Reapply this increase to the number of virtual registers. All of the 
various breakages appear to be dealt with.

Patch by Pekka Jääskeläinen.

llvm-svn: 113024
 2010-09-03 22:46:31 +00:00
Dan Gohman 47bec3cb57 Disable the asserts that check that normalization is perfectly 
invertible. ScalarEvolution's folding routines don't always succeed
in canonicalizing equal expressions to a single canonical form, and
this can cause these asserts to fail, even though there's no actual
correctness problem. This fixes PR8066.

llvm-svn: 113021
 2010-09-03 22:12:56 +00:00
Bruno Cardoso Lopes 2bef20eda7 Reapply considered harmfull part of rr112934 and r112942. 
"Use target specific nodes instead of relying in unpckl and
unpckh pattern fragments during isel time. Also place a
depth limit in getShuffleScalarElt.

llvm-svn: 113020
 2010-09-03 22:09:41 +00:00
Jim Grosbach 005155e236 previous patch was a little too tricky for its own good. Don't try to 
overload UserInInstr. Explicitly check Allocatable. The early exit in the
condition will mean the performance impact of the extra test should be
minimal.

llvm-svn: 113016
 2010-09-03 21:45:15 +00:00
Dale Johannesen 367afb5a00 Remove the rest of the nonexistent 64-bit AVX instructions. 
Bruno, please review.

llvm-svn: 113014
 2010-09-03 21:23:00 +00:00
David Greene 2a9de4d828 Generalize getFieldType to work on all TypedInits. Add a couple of testcases from 
Amaury Pouly.

llvm-svn: 113010
 2010-09-03 21:00:49 +00:00
Bruno Cardoso Lopes a750d994fe Reapply last harmless part of r112934, the pattern fragment to match X86Unpcklpd 
llvm-svn: 113009
 2010-09-03 20:44:26 +00:00
Bruno Cardoso Lopes fe8717c573 Reintroduce a simple function refactoring done in r112934, also without any functionality changes 
llvm-svn: 113008
 2010-09-03 20:20:02 +00:00
Bruno Cardoso Lopes 48e589b122 Reapply piecies of r112942 and r112934 which don't do 
functional changes

llvm-svn: 113007
 2010-09-03 20:10:35 +00:00
Bruno Cardoso Lopes 6979cf0808 Reapply Fix comment 
llvm-svn: 113006
 2010-09-03 19:55:05 +00:00
Daniel Dunbar 6f3da24d70 Revert r112934, "- Use specific nodes to match unpckl masks.", which introduced 
some infinite loop and select failures.
 - Apologies for eager reverting, but its branch day.

llvm-svn: 113000
 2010-09-03 19:38:11 +00:00
Daniel Dunbar f1aacd55c0 Revert r112938 "Fix comment", which depends on r112934, which introduced some 
infinite loop and select failures.

llvm-svn: 112999
 2010-09-03 19:38:08 +00:00
Daniel Dunbar 0ffe4db45c Revert r112942, "Use punpckh and unpckh family of nodes instead of using unpckh 
mask pattern fragment", which depends on r112934, which introduced some infinite
loop and select failures.

llvm-svn: 112998
 2010-09-03 19:38:05 +00:00
Bob Wilson 3626a8c136 Add a missing check when legalizing a vector extending load. This doesn't 
solve the root problem, but it corrects the bug in the code I added to
support legalizing in the case where the non-extended type is also legal.

llvm-svn: 112997
 2010-09-03 19:20:37 +00:00
Bill Wendling 78395e4b8a Get rid of "passing signed into unsigned parameter" warning on PPC. 
llvm-svn: 112995
 2010-09-03 19:09:46 +00:00
Owen Anderson c725462245 Add support for simplifying a load from a computed value to a load from a global when it 
is provable that they're equivalent.  This fixes PR4855.

llvm-svn: 112994
 2010-09-03 19:08:37 +00:00
Bill Wendling cef985bc7e Quiesce warning about non-virtual d'tor in virtual class. 
llvm-svn: 112991
 2010-09-03 18:41:20 +00:00