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Author SHA1 Message Date
Eli Friedman 0c617e6026 Get rid of the getPointeeAlignment helper function from 
InstCombineLoadStoreAlloca.cpp, which had many issues.
(At least two bugs were noted on llvm-commits, and it was overly conservative.)
Instead, use getOrEnforceKnownAlignment.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168629 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-26 23:04:53 +00:00
Eli Friedman 43147afd71 Mark FP_EXTEND form v2f32 to v2f64 as "expand" for ARM NEON. Patch by Pete Couperus. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168240 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-17 01:52:46 +00:00
Eli Friedman 846ce8ea67 Mark FP_ROUND for converting NEON v2f64 to v2f32 as expand. Add a missing 
case to vector legalization so this actually works.

Patch by Pete Couperus.  Fixes PR12540.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168107 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-15 22:44:27 +00:00
Eli Friedman bbc6e671b1 Fix regression in old-style JIT. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167057 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-30 22:21:55 +00:00
Eli Friedman 2128aaebd8 [ms-inline-asm] Implement _emit directive (which is roughly equivalent to .byte). 
<rdar://problem/12470345>.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166451 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-22 23:58:19 +00:00
Eli Friedman 8ee16c7b66 [ms-inline asm] Don't rewrite out parts of an inline-asm skipped by .if 0 and friends. 
It's unnecessary and makes the generated assembly less faithful to the original source.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166440 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-22 20:50:25 +00:00
Eli Friedman ce3da6f1d5 Make sure to generate the right kind of MDNode for enum forward declarations. 
PR14029, LLVM part.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165288 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-05 01:49:14 +00:00
Eli Friedman a36ff7b275 Don't include stdint.h directly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163354 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-06 22:55:11 +00:00
Eli Friedman 30eac71f3b Don't include stdint.h directly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163276 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-06 00:12:55 +00:00
Eli Friedman fd45fa1503 Make atomic load and store of pointers work. Tighten verification of atomic operations 
so other unexpected operations don't slip through.  Based on patch by Logan Chien.
PR11786/PR13186.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162146 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-17 23:24:29 +00:00
Eli Friedman 6b951b25c3 The normal edge of an invoke is not allowed to branch to a block with a 
landingpad.  Enforce it in the verifier, and fix the regression tests to match.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161697 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-10 20:55:20 +00:00
Eli Friedman 1b88fc0122 isAllocLikeFn is allowed to return true for functions which read memory; make 
sure we account for that correctly in DeadStoreElimination.  Fixes a regression
from r158919.  PR13547.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161468 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-08 02:17:32 +00:00
Eli Friedman db59a9556d Remove empty directory. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161434 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-07 18:06:01 +00:00
Eli Friedman 52d418df5d Make some ugly hacks for inline asm operands which name a specific register a bit more thorough. PR13196. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159176 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-25 23:42:33 +00:00
Eli Friedman 2db0e9ebb6 Simplify code for calling a function where CanLowerReturn fails, fixing a small bug in the process. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157446 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-25 00:09:29 +00:00
Eli Friedman 5b6dfee28e Fix a minor logic mistake transforming compares in instcombine. PR12514. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156600 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-11 01:32:59 +00:00
Eli Friedman 41827f9ba2 Fix the implementation of MachOObjectFile::isSectionZeroInit so it follows the MachO spec. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155976 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-02 02:31:28 +00:00
Eli Friedman e9f15c8a56 In InstCombiner::visitOr, make sure we reverse the operand swap used for checking for or-of-xor operations after those checks; a later check expects that any constant will be in Op1. PR12234. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152884 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-16 00:52:42 +00:00
Eli Friedman 5b8f0ddc7e Fix regression from r151466: an we can't replace uses of an instruction reachable from the entry block with uses of an instruction not reachable from the entry block. PR12231. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152595 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-13 01:06:07 +00:00
Eli Friedman bb9dbb7d6b Missing change in r152106 for TinyPtrVector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152201 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-07 03:37:32 +00:00
Eli Friedman 54427e5219 Fix the operand ordering on aliases for shld and shrd. PR12173, part 2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152136 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-06 19:58:46 +00:00
Eli Friedman 923bb4117a A few more cases of missing masking in ComputeMaskedBits; found by inspection. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152070 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-05 23:22:40 +00:00
Eli Friedman 049d08f5c9 Make sure we don't return bits outside the mask in ComputeMaskedBits. PR12189. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152066 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-05 23:09:40 +00:00
Eli Friedman ec93b6deca Make aliases for shld and shrd match gas. PR12173. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152014 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-05 04:31:54 +00:00
Eli Friedman cd38485b8a Duncan pointed out that if the alignment isn't explicitly specified, it defaults to the ABI alignment. Given that, make this code a bit more aggressive in such cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151584 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-27 23:16:46 +00:00
Eli Friedman 1680a24e53 Teach BasicAA about the LLVM IR rules that allow reading past the end of an object given sufficient alignment. Fixes PR12098. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151553 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-27 20:46:07 +00:00
Eli Friedman 967570f2ec Improve handling of blockaddresses in bugpoint when splitting a module. Patch by Daniel Reynaud. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151115 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-22 01:43:47 +00:00
Eli Friedman 2c3acb0e27 Fix a rather nasty regression from r150690: LHS != RHS does not imply LHS->stripPointerCasts() != RHS->stripPointerCasts(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150863 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-18 03:29:25 +00:00
Eli Friedman 5e6162e756 loop-rotate shouldn't hoist alloca instructions out of a loop. Patch by Patrik Hägglund, with slightly modified test. Issue reported by Patrik Hägglund on llvmdev. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150642 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 00:41:10 +00:00
Eli Friedman d49db36bad Use the correct ShiftAmtTy for creating shifts after legalization. PR11881. Not committing a testcase because I think it will be too fragile. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149315 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-31 01:08:03 +00:00
Eli Friedman a48678332b Remove a low-quality test which was failing on Windows; test/CodeGen/X86/sret.ll is a better test for the relevant behavior. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148526 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-20 02:06:40 +00:00
Eli Friedman 9a2478ac1a Support MSVC x86-32 sret convention. PR11688. Patch by Joe Groff. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148513 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-20 00:05:46 +00:00
Eli Friedman 1857b51ef5 Make sure the non-SSE lowering for fences correctly clobbers EFLAGS. PR11768. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148240 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-16 16:42:21 +00:00
Eli Friedman a20b71518a Get rid of unused codegen-only instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148239 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-16 16:29:35 +00:00
Eli Friedman 09a536a88b Speculatively revert r148132+r148133 to try and fix a buildbot failure. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148149 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 22:34:39 +00:00
Eli Friedman e15f421a9a Re-fix the issue Bill fixed in r147899 in a slightly different way, which doesn't abuse the semantics of linker_private. We don't really want to merge any string constant with a weak_odr global. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147971 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-11 22:06:46 +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
Eli Friedman da813f4209 Fix type-checking for load transformation which is not legal on floating-point types. PR11674. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147323 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-28 21:24:44 +00:00
Eli Friedman d6e2560e7a Make sure DAGCombiner doesn't introduce multiple loads from the same memory location. PR10747, part 2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147283 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-26 22:49:32 +00:00
Eli Friedman 3a3a424a24 Some unittests for APInt rotates; patch by Cameron McInally. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147186 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 22:11:19 +00:00
Eli Friedman 2acbd7ddc0 Fix APInt::rotl and APInt::rotr so that they work correctly. Found while writing some code that tried to use them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147134 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 03:15:35 +00:00
Eli Friedman 638905d90c Add "using" to silence warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146913 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-19 21:53:12 +00:00
Eli Friedman 1e2ec6abd4 Attempt to fix PR11607 by shuffling around which class defines which methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146897 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-19 20:06:03 +00:00
Eli Friedman 7e840efc23 Make sure we correctly note the existence of an i8 immediate for vblendvps and friends, so we compute fixups correctly. PR11586. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146709 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 23:46:18 +00:00
Eli Friedman 2f21e8c5ba Make check a bit more strict so we don't call ARM_AM::getFP32Imm with a value that isn't a 32-bit value. (This is just to be safe; I don't think this actually causes any issues in practice.) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146700 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 22:56:53 +00:00
Eli Friedman b012eb8cc4 Zap unnecessary semicolons. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146682 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 21:11:38 +00:00
Eli Friedman 3ba19b1045 Fix test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146642 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 04:52:47 +00:00
Eli Friedman adeb0a6e64 Make constant folding for GEPs a bit more aggressive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146639 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 04:33:48 +00:00
Eli Friedman ca072a3977 Don't try to form FGETSIGN after legalization; it is possible in some cases, but the existing code can't do it correctly. PR11570. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146630 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 02:07:20 +00:00
Eli Friedman 7d1ff37118 Make loop preheader insertion in LoopSimplify handle the case where the loop header is a landing pad correctly (by splitting the landingpad out of the loop header). Make some adjustments to the rest of LoopSimplify to make it clear that the rest of LoopSimplify isn't making bad assumptions about the presence of landing pads. PR11575. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146621 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 00:50:34 +00:00
Eli Friedman e6109828d7 Fix a stupid typo in MemDepPrinter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146549 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 02:54:39 +00:00
Eli Friedman e08db65c48 Add missing cases to SDNode::getOperationName(). Patch by Micah Villmow. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146548 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 02:28:54 +00:00
Eli Friedman effab8fa24 Splats can contain undef's; make sure to handle them correctly. PR11526. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146299 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-09 23:54:42 +00:00
Eli Friedman 2dd0353fec Fix a couple of logic bugs in TargetLowering::SimplifyDemandedBits. PR11514. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146219 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-09 01:16:26 +00:00
Eli Friedman 0572c7d31e Remove reference to dead GEPSplitterPass. PR11506. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146195 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-08 22:28:17 +00:00
Eli Friedman 0e6307f642 Make sure we correctly set LiveRegGens when a call is unscheduled. <rdar://problem/10460321>. No testcase because this is very sensitive to scheduling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146087 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-07 22:24:28 +00:00
Eli Friedman 30c44e18bf Fix an assertion in the scheduler. PR11386. No testcase included because it's rather delicate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146083 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-07 22:06:02 +00:00
Eli Friedman 1c663fee56 Zap unnecessary isIntDivCheap() check. PR11485. No testcase because this doesn't affect any in-tree target. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146015 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-07 03:55:52 +00:00
Eli Friedman f91abd22be Support vector bitcasts in the AsmPrinter. PR11495. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146001 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-07 00:50:54 +00:00
Eli Friedman 26323442d5 Fix an optimization involving EXTRACT_SUBVECTOR in DAGCombine so it behaves correctly. PR11494. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145996 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-07 00:11:56 +00:00
Eli Friedman 522fb8cc01 Pass AVX vectors which are arguments to varargs functions on the stack. <rdar://problem/10463281>. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145573 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-01 04:49:21 +00:00
Eli Friedman 32e698cc10 Small fix for assembler generation on Darwin PPC64. Patch by Michael Kostylev. PR11437. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145553 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-01 01:43:47 +00:00
Eli Friedman 3dad610aaa Make GlobalMerge honor the preferred alignment on globals without an explicitly specified alignment. 
<rdar://problem/10497732>.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145523 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-30 21:54:15 +00:00
Eli Friedman ba78c883d4 Zap some completely ridiculous code. There's probably a miscompile here, but I don't really want to try to write a testcase involving an invoke returning a pointer to a varargs function... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145347 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-29 01:18:23 +00:00
Eli Friedman 54b92113e2 Add a missing safety check to ProcessUGT_ADDCST_ADD. Fixes PR11438. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145316 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-28 23:32:19 +00:00
Eli Friedman c4c2a02485 Make SelectionDAG::InferPtrAlignment use llvm::ComputeMaskedBits instead of duplicating the logic for globals. Make llvm::ComputeMaskedBits handle GlobalVariables slightly more aggressively, to match what InferPtrAlignment knew how to do. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145304 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-28 22:48:22 +00:00
Eli Friedman f9b1cd0c7f Add back a line I deleted by accident in r145141. Fixes uninitialized variable warnings and runtime failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145256 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-28 18:50:37 +00:00
Eli Friedman 4455142a95 Fix APFloat::convert so that it handles narrowing conversions correctly; it 
was returning incorrect values in rare cases, and incorrectly marking
exact conversions as inexact in some more common cases. Fixes PR11406, and a
missed optimization in test/CodeGen/X86/fp-stack-O0.ll.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145141 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-26 03:38:02 +00:00
Eli Friedman 9d434dbff3 Add support for custom names for library functions in TargetLibraryInfo. Add a custom name for fwrite and fputs on x86-32 OSX. Make SimplifyLibCalls honor the custom 
names for fwrite and fputs.

Fixes <rdar://problem/9815881>.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144876 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-17 01:27:36 +00:00
Eli Friedman d224c7879a Turn on vzeroupper insertion on call boundaries for AVX; it works as far as I know, and I'd like to see wider testing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144867 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-17 00:21:52 +00:00
Eli Friedman 4db4addcd4 Make sure to replace the chain properly when DAGCombining a LOAD+EXTRACT_VECTOR_ELT into a single LOAD. Fixes PR10747/PR11393. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144863 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-16 23:50:22 +00:00
Eli Friedman ee94dc212e Fix testcase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144769 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-16 03:03:52 +00:00
Eli Friedman d577df8e5a CONCAT_VECTORS can have more than two operands. PR11389. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144768 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-16 02:52:39 +00:00
Eli Friedman b91b6001a6 Add a couple asserts so it will be easier to debug if we accidentally pass indexed loads/stores to the legalizer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144767 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-16 02:43:15 +00:00
Eli Friedman 75f69e3a3d Make sure scalarrepl picks the correct alloca when it rewrites a bitcast. Fixes PR11353. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144442 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-12 02:07:50 +00:00
Eli Friedman 501852423d Don't try to form pre/post-indexed loads/stores until after LegalizeDAG runs. Fixes PR11029. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144438 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-12 00:35:34 +00:00
Eli Friedman 0e3642a587 Some cleanup and bulletproofing for node replacement in LegalizeDAG. To maintain LegalizeDAG invariants, whenever we a node is replaced, we must attempt to delete it, and if it still 
has uses after it is replaced (which can happen in rare cases due to CSE), we must revisit it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144432 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-11 23:58:27 +00:00
Eli Friedman 15f58c56e9 Make sure to expand SIGN_EXTEND_INREG for NEON vectors. PR11319, round 3. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144361 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-11 03:16:38 +00:00
Eli Friedman b80f778bd3 Get rid of an optimization in SCCP which appears to have many issues. Specifically, it doesn't handle many cases involving undef correctly, and it is missing other checks which 
lead to it trying to re-mark a value marked as a constant with a different value.  It also appears to trigger very rarely.

Fixes PR11357.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144352 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-11 01:16:15 +00:00
Eli Friedman 14e809c872 Make sure we correctly unroll conversions between v2f64 and v2i32 on ARM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144241 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-09 23:36:02 +00:00
Eli Friedman 0948f0acca Add check so we don't try to perform an impossible transformation. Fixes issue from PR11319. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144216 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-09 22:25:12 +00:00
Eli Friedman 5786b4cdc1 Enhance verifyLoop so that it can reliably verify that every block in a loop is reachable from the loop header. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144166 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-09 04:16:01 +00:00
Eli Friedman 7781ae5be5 Fix code to match comment. Fixes PR11340, a regression from r143209. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144121 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-08 21:08:02 +00:00
Eli Friedman 9f1f26aefa Make sure to mark vector extload's as expand on ARM. Fixes PR11319. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144057 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-08 01:43:53 +00:00
Eli Friedman 2efa35f779 Add a bunch of calls to RemoveDeadNode in LegalizeDAG, so legalization doesn't get confused by CSE later on. Fixes PR11318. 
Re-commit of r144034, with an extra fix so that RemoveDeadNode doesn't blow up.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144055 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-08 01:25:24 +00:00
Eli Friedman 58dd0fec4d Revert r144034 while I try to track down a crash. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144044 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-07 23:53:20 +00:00
Eli Friedman 1b4f6f2532 Add a bunch of calls to RemoveDeadNode in LegalizeDAG, so legalization doesn't get confused by CSE later on. Fixes PR11318. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144034 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-07 22:51:10 +00:00
Eli Friedman bd00a934c6 Enhanced vzeroupper insertion pass that avoids inserting vzeroupper where it is unnecessary through local analysis. Patch from Bruno Cardoso Lopes, with some additional changes. 
I'm going to wait for any review comments and perform some additional testing before turning this on by default.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143750 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-04 23:46:11 +00:00
Eli Friedman 84a6126937 Add missing includes/decls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143722 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-04 18:45:34 +00:00
Eli Friedman 73a1ad8f05 Add missing includes/class declaration. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143718 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-04 18:30:30 +00:00
Eli Friedman 5cdf0700c7 Add missing forward declarations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143717 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-04 18:29:09 +00:00
Eli Friedman 06138ac569 Add a couple missing includes; found while analyzing LLVM headers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143716 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-04 18:19:43 +00:00
Eli Friedman b39e25ef2c Delete names for unused parameters in inline function definitions in headers, so LLVM users can compile with -Wunused-parameter. PR11257; based on patch by Kevin Harris. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143715 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-04 18:11:56 +00:00
Eli Friedman 5b7cc334c8 Add missing argument for atomic instructions in c++ backend. PR11268, part 2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143712 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-04 17:29:35 +00:00
Eli Friedman f6aa6b12f1 Teach the x86 backend a couple tricks for dealing with v16i8 sra by a constant splat value. Fixes PR11289. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143498 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-01 21:18:39 +00:00
Eli Friedman c94792507d Remove a couple unused methods. PR11201. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143452 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-01 05:11:01 +00:00
Eli Friedman 049260d9e2 Make sure we use the right insertion point when instcombine replaces a PHI with another instruction. (Specifically, don't insert an arbitrary instruction before a PHI.) Fixes PR11275. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143437 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-01 04:49:29 +00:00
Eli Friedman 597362a54b A couple misc fixes so that bugpoint doesn't explode reducing code containing landingpads. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143435 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-01 04:40:56 +00:00
Eli Friedman dc9414d62f Move x86-specific tests into X86 folder. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143424 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-01 03:21:48 +00:00
Eli Friedman 50ea611e2c Remove empty directory. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143422 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-01 03:21:17 +00:00