Commit Graph

79373 Commits

Author SHA1 Message Date
Rafael Espindola
99b4237c16 Split Finish into Finish and FinishImpl to have a common place to do end of
file error checking. Use that to error on an unfinished cfi_startproc.

The error is not nice, but is already better than a segmentation fault.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147717 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-07 03:13:18 +00:00
Evan Cheng
977679d603 Added a late machine instruction copy propagation pass. This catches
opportunities that only present themselves after late optimizations
such as tail duplication .e.g.
## BB#1:
        movl    %eax, %ecx
        movl    %ecx, %eax
        ret

The register allocator also leaves some of them around (due to false
dep between copies from phi-elimination, etc.)

This required some changes in codegen passes. Post-ra scheduler and the
pseudo-instruction expansion passes have been moved after branch folding
and tail merging. They were before branch folding before because it did
not always update block livein's. That's fixed now. The pass change makes
independently since we want to properly schedule instructions after
branch folding / tail duplication.

rdar://10428165
rdar://10640363



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147716 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-07 03:02:36 +00:00
Evan Cheng
ccec74738d Copy implicit defs (e.g. r0) when changing tBX_RET to tPOP_RET. This bug is
exposed with an upcoming change will would delete the copy to return register
because there is no use! It's amazing anything works.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147715 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-07 02:55:54 +00:00
Jakob Stoklund Olesen
45ca7c6336 Use movw+movt in ARMFastISel::ARMMaterializeGV.
This eliminates a lot of constant pool entries for -O0 builds of code
with many global variable accesses.

This speeds up -O0 codegen of consumer-typeset by 2x because the
constant island pass no longer has to look at thousands of constant pool
entries.

<rdar://problem/10629774>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147712 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-07 01:47:05 +00:00
Andrew Trick
f231a6dc7f LSR: run DeleteDeadPhis before replaceCongruentPhis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147711 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-07 01:36:44 +00:00
Devang Patel
63faf82d03 Refactor.
Store AsmParser info locally. A small step towards emitting match entries for multiple asm variants.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147710 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-07 01:33:34 +00:00
Andrew Trick
139f333f88 Cleanup comments and argument types related to my previous replaceCongruentPhis checkin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147709 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-07 01:29:21 +00:00
Devang Patel
b78307fc58 Eliminate an error check that may not work with all asm syntax variants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147708 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-07 01:22:23 +00:00
Andrew Trick
ee98aa8743 Extended replaceCongruentPhis to handle mixed phi types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147707 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-07 01:12:09 +00:00
Eric Christopher
5548755201 Make the 'x' constraint work for AVX registers as well.
Fixes rdar://10614894

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147704 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-07 01:02:09 +00:00
Andrew Trick
9c7b3da04a Missing raw_ostream.h breaks MSVC build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147703 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-07 00:54:28 +00:00
Andrew Trick
71ba09f2c4 comment typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147701 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-07 00:29:20 +00:00
Andrew Trick
f8fd841a4b Expose isNonConstantNegative to users of ScalarEvolution.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147700 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-07 00:27:31 +00:00
Chad Rosier
4bf76e0e28 Add comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147696 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06 23:45:47 +00:00
Eric Christopher
e016789b73 Add a comment and ensure that anyone else looking at this code doesn't start
to bleed from the eyes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147695 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06 23:03:37 +00:00
Eric Christopher
fa03db0d2d Use const vector references instead of a vector copy. Spotted by Devang.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147694 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06 23:03:34 +00:00
Eric Christopher
547abbb40b Use -> instead of (*iter).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147693 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06 23:03:27 +00:00
Jakob Stoklund Olesen
bad1e6b8e0 Enable aligned NEON spilling by default.
Experiments show this to be a small speedup for modern ARM cores.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147689 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06 22:19:37 +00:00
Andrew Trick
260bf5364e Put all IVUsers in the processed set. Allow querying IVUsers with isIVUserOrOperand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147686 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06 21:41:55 +00:00
Jakob Stoklund Olesen
59ecaae7b6 Abort AdjustBBOffsetsAfter early when possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147685 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06 21:40:15 +00:00
Daniel Dunbar
2d4a5bf817 lit/lit.TestRunner: Add an extra_substitutions argument for executeShTest --
useful for test suites which want to piggyback onto the "shtest" format style.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147684 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06 21:39:06 +00:00
Andrew Trick
3326ec1842 SCEVExpander: hoistStep should check strict dominance.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147683 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06 21:23:43 +00:00
Andrew Trick
b937b76045 Tracing to help investigate issues with SjLj spill code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147682 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06 21:16:27 +00:00
Chad Rosier
6da0ef9ca4 Initializing to false makes better sense. Thanks, David.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147679 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06 20:11:59 +00:00
Chad Rosier
a32a08c8e2 Fix uninitialized variable warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147676 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06 20:02:49 +00:00
Chad Rosier
99eecd3676 Fix uninitialized variable warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147675 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06 19:59:58 +00:00
Eric Christopher
7eabae3f50 Fix a leak I noticed while reviewing the accelerator table changes. Passes
lldb testsuite.

rdar://10652330

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147673 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06 19:35:04 +00:00
Kostya Serebryany
3c7faae346 [asan] cleanup: remove the SIGILL-related code (compiler part)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147667 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06 18:09:21 +00:00
Eli Bendersky
1eb189b4b2 Fix typo in string
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147654 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06 07:49:17 +00:00
Eric Christopher
c36145f19c As part of the ongoing work in finalizing the accelerator tables, extend
the debug type accelerator tables to contain the tag and a flag
stating whether or not a compound type is a complete type.

rdar://10652330

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147651 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06 04:35:23 +00:00
Dan Gohman
3b205175ea Fix SpeculativelyExecuteBB to either speculate all or none of the phis
present in the bottom of the CFG triangle, as the transformation isn't
ever valuable if the branch can't be eliminated.

Also, unify some heuristics between SimplifyCFG's multiple
if-converters, for consistency.

This fixes rdar://10627242.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147630 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05 23:58:56 +00:00
Eli Friedman
fb54ad19e7 PR11705, part 2: globalopt shouldn't put inttoptr/ptrtoint operations into global initializers if there's an implied extension or truncation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147625 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05 23:03:32 +00:00
Rafael Espindola
3ed8815541 Link symbols with different visibilities according to the rules in the
System V Application Binary Interface. This lets us use
-fvisibility-inlines-hidden with LTO.
Fixes PR11697.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147624 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05 23:02:01 +00:00
Dan Gohman
dd35df15a2 Revert r56315. When the instruction to speculate is a load, this
code can incorrectly move the load across a store. This never
happens in practice today, but only because the current
heuristics accidentally preclude it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147623 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05 22:54:35 +00:00
Benjamin Kramer
1031111f84 Kill ObjectCodeEmitter and BinaryObject, they were unused and superseded by MC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147618 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05 22:31:37 +00:00
Nick Lewycky
720ac91969 SCCCaptured is trivially false on entry to this loop and not modified inside it.
Eliminate the dead test for it on each loop iteration. No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147616 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05 22:21:45 +00:00
Rafael Espindola
611caf5f91 Remove the old ELF writer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147615 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05 22:07:43 +00:00
Danil Malyshev
45a93d6eb4 A small re-factored JIT/MCJIT::getPointerToNamedFunction(), so it could be called with the base class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147610 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05 21:16:14 +00:00
Sebastian Pop
6e9b5eb51b revert r147542 after comments from Joerg Sonnenberger
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147608 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05 18:28:46 +00:00
Chris Lattner
0fcccd4d45 allow clients of SmallSet to specify their own comparison function for the set.
Patch by Stepan Dyatkovskiy!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147607 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05 17:35:07 +00:00
Chandler Carruth
fcb0a27895 Remove an unused variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147605 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05 11:25:47 +00:00
Chandler Carruth
62dfc51152 Prevent a DAGCombine from firing where there are two uses of
a combined-away node and the result of the combine isn't substantially
smaller than the input, it's just canonicalized. This is the first part
of a significant (7%) performance gain for Snappy's hot decompression
loop.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147604 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05 11:05:55 +00:00
Chandler Carruth
1e141a854e Cleanup and FileCheck-ize a test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147603 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05 11:05:47 +00:00
Craig Topper
193cf04f5b Mark scalar FMA4 instructions as ignoring the VEX.L bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147602 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05 08:56:10 +00:00
Victor Umansky
19d8559019 Peephole optimization of ptest-conditioned branch in X86 arch. Performs instruction combining of sequences generated by ptestz/ptestc intrinsics to ptest+jcc pair for SSE and AVX.
Testing: passed 'make check' including LIT tests for all sequences being handled (both SSE and AVX)

Reviewers: Evan Cheng, David Blaikie, Bruno Lopes, Elena Demikhovsky, Chad Rosier, Anton Korobeynikov



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147601 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05 08:46:19 +00:00
Eli Bendersky
30c90c973a test commit (verifyiing commit access)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147600 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05 08:18:41 +00:00
Andrew Trick
877ae2ee17 Minor postra scheduler cleanup. It could result in more precise antidependence latency on ARM in exceedingly rare cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147594 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05 02:52:11 +00:00
Bill Wendling
397ae210ce Replace the uint64_t -> double convertion algorithm with one that's more efficient.
This small bit of ASM code is sufficient to do what the old algorithm did:

     movq       %rax,  %xmm0
     punpckldq  (c0),  %xmm0  // c0: (uint4){ 0x43300000U, 0x45300000U, 0U, 0U }
     subpd      (c1),  %xmm0  // c1: (double2){ 0x1.0p52, 0x1.0p52 * 0x1.0p32 }
   #ifdef __SSE3__
     haddpd   %xmm0, %xmm0          
   #else
     pshufd   $0x4e, %xmm0, %xmm1 
     addpd    %xmm1, %xmm0
   #endif

It's arguably faster. One caveat, the 'haddpd' instruction isn't very fast on
all processors.
<rdar://problem/7719814>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147593 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05 02:13:20 +00:00
Andrew Trick
1130d220a3 comment cleanup
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147585 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05 01:01:01 +00:00
Devang Patel
59f7ee0400 Do not hard code asm variant number.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147583 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05 00:51:28 +00:00