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* Fix a regression from r125393;Nadav Rotem2011-02-132-2/+19
| | | | | | | | | | | | | It caused a crash in MultiSource/Benchmarks/Bullet. Opt hit an assertion with "opt -std-compile-opts" because Constant::getAllOnesValue doesn't know how to handle floats. This patch added a test to reproduce the problem and a check that the destination vector is of integer type. Thank you Benjamin! llvm-svn: 125459
* when legalizing extremely wide shifts, make sure that Chris Lattner2011-02-133-3/+21
| | | | | | | | | the shift amounts are in a suitably wide type so that we don't generate out of range constant shift amounts. This fixes PR9028. llvm-svn: 125458
* fix visitShift to properly zero extend the shift amount if the provided operandChris Lattner2011-02-133-23/+20
| | | | | | | is narrower than the shift register. Doing an anyext provides undefined bits in the top part of the register. llvm-svn: 125457
* improve solaris support, from PR9109, patch by Yuri!Chris Lattner2011-02-131-0/+5
| | | | llvm-svn: 125456
* add PR#Chris Lattner2011-02-131-0/+1
| | | | llvm-svn: 125455
* implement instcombine folding for things like (x >> c) < 42.Chris Lattner2011-02-132-10/+61
| | | | | | We were previously simplifying divisions, but not right shifts! llvm-svn: 125454
* add a helper method.Chris Lattner2011-02-131-0/+7
| | | | llvm-svn: 125453
* Wrap the struct in an anonymous namespace.Argyrios Kyrtzidis2011-02-131-0/+2
| | | | llvm-svn: 125452
* refactor some code out into a helper method.Chris Lattner2011-02-132-46/+56
| | | | llvm-svn: 125451
* teach SCEV that the scale and addition of an inbounds gep don't NSW.Chris Lattner2011-02-133-6/+36
| | | | | | | This fixes a FIXME in scev-aa.ll (allowing a new no-alias result) and generally makes things more precise. llvm-svn: 125449
* Add encodings and mnemonics for FXSAVE64 and FXRSTOR64.Reid Kleckner2011-02-122-0/+12
| | | | | | | | These are just FXSAVE and FXRSTOR with REX.W prefixes. These versions use 64-bit pointer values instead of 32-bit pointer values in the memory map they dump and restore. llvm-svn: 125446
* Prevent IMPLICIT_DEF/KILL to become a delay filler instruction in SPARC backend.Venkatraman Govindaraju2011-02-122-0/+16
| | | | llvm-svn: 125444
* SimplifyLibCalls: Add missing legalize check on various printf to puts andDaniel Dunbar2011-02-122-12/+29
| | | | | | putchar transforms, their return values are not compatible. llvm-svn: 125442
* tests: FileCheckizeDaniel Dunbar2011-02-121-3/+5
| | | | llvm-svn: 125441
* Preserve aliases if needed.Rafael Espindola2011-02-121-0/+8
| | | | llvm-svn: 125439
* Add a note about SSE4.1 roundss/roundsd.Benjamin Kramer2011-02-121-0/+11
| | | | llvm-svn: 125438
* A fix for 9165.Nadav Rotem2011-02-122-4/+41
| | | | | | | | The DAGCombiner created illegal BUILD_VECTOR operations. The patch added a check that either illegal operations are allowed or that the created operation is legal. llvm-svn: 125435
* AsmMatcher custom operand parser failure enhancements.Jim Grosbach2011-02-124-40/+51
| | | | | | | | | | | Teach the AsmMatcher handling to distinguish between an error custom-parsing an operand and a failure to match. The former should propogate the error upwards, while the latter should continue attempting to parse with alternative matchers. Update the ARM asm parser accordingly. llvm-svn: 125426
* Fix a silly bug I introduced when dropping std::string.Rafael Espindola2011-02-121-0/+2
| | | | llvm-svn: 125420
* attempt to capture recent discussion about overflow and inbounds geps.Chris Lattner2011-02-111-7/+21
| | | | llvm-svn: 125412
* Also fold (A+B) == A -> B == 0 when the add is commuted.Benjamin Kramer2011-02-112-12/+22
| | | | llvm-svn: 125411
* Per discussion with Dan G, inbounds geps *certainly* can haveChris Lattner2011-02-112-5/+16
| | | | | | | | | | | unsigned overflow (e.g. "gep P, -1"), and while they can have signed wrap in theoretical situations, modelling an AddRec as not having signed wrap is going enough for any case we can think of today. In the future if this isn't enough, we can revisit this. Modeling them as having NUW isn't causing any known problems either FWIW. llvm-svn: 125410
* When lowering an inbounds gep, the intermediate adds can haveChris Lattner2011-02-111-6/+3
| | | | | | | | unsigned overflow (e.g. due to a negative array index), but the scales on array size multiplications are known to not sign wrap. llvm-svn: 125409
* Tidy out asm matcher .inc output.Jim Grosbach2011-02-111-2/+2
| | | | llvm-svn: 125408
* Adds llvm::sys::path::is_separator() to test whether a char is a path separatorZhanyong Wan2011-02-113-12/+32
| | | | | | on the host OS. Reviewed by dgregor. llvm-svn: 125406
* Implement sdiv & udiv for <4 x i16> and <8 x i8> NEON vector types.Nate Begeman2011-02-112-0/+230
| | | | | | This avoids moving each element to the integer register file and calling __divsi3 etc. on it. llvm-svn: 125402
* SimplifySelectOps can only handle selects with a scalar condition. Add a checkNadav Rotem2011-02-111-0/+3
| | | | | | that the condition is not a vector. llvm-svn: 125398
* Fix 9173.Nadav Rotem2011-02-113-0/+67
| | | | | | | Add more folding patterns to constant expressions of vector selects and vector bitcasts. llvm-svn: 125393
* Fix #9190Nadav Rotem2011-02-111-1/+1
| | | | | | | | | | | The bug happens when the DAGCombiner attempts to optimize one of the patterns of the SUB opcode. It tries to create a zero of type v2i64. This type is legal on 32bit machines, but the initializer of this vector (i64) is target dependent. Currently, the initializer attempts to create an i64 zero constant, which fails. Added a flag to tell the DAGCombiner to create a legal zero, if we require that the pass would generate legal types. llvm-svn: 125391
* Test commit.Nadav Rotem2011-02-111-1/+1
| | | | llvm-svn: 125389
* More whitespace cleanup...Jim Grosbach2011-02-112-41/+41
| | | | llvm-svn: 125388
* Remove trailing whitespace.Jim Grosbach2011-02-111-6/+6
| | | | llvm-svn: 125385
* Poison the relational operators ==, !=, <, <=, >=, > on llvm::OptionalDouglas Gregor2011-02-111-0/+54
| | | | | | | objects, since they'll end up using the implicit conversion to "bool" and causing some very "fun" surprises. llvm-svn: 125380
* Make LoopUnswitch preserve ScalarEvolution by just forgetting everything aboutCameron Zwarich2011-02-111-0/+5
| | | | | | | a loop when unswitching it. It only does this in the complex case, because everything should be fine already in the simple case. llvm-svn: 125369
* LoopInstSimplify preserves ScalarEvolution.Cameron Zwarich2011-02-111-0/+1
| | | | llvm-svn: 125368
* fix dumping of METADATA_ATTACHMENT2 names, patch by Peter Housel!Chris Lattner2011-02-111-1/+1
| | | | llvm-svn: 125367
* make ConstantExpr::replaceUsesOfWithOnConstant preserve the inboundsChris Lattner2011-02-111-1/+2
| | | | | | flag. Noticed by Jin Gu Kang! llvm-svn: 125366
* make the constantexpr interfaces for inbounds GEPs follow the same styleChris Lattner2011-02-112-77/+23
| | | | | | as other constantexpr flags, reducing redundancy. llvm-svn: 125365
* Remove std::string version of getNameWithPrefix.Rafael Espindola2011-02-114-21/+10
| | | | llvm-svn: 125363
* Disable this test for now...Daniel Dunbar2011-02-111-0/+3
| | | | llvm-svn: 125361
* Fix buggy fcopysign lowering.Evan Cheng2011-02-112-18/+79
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This define float @foo(float %x, float %y) nounwind readnone { entry: %0 = tail call float @copysignf(float %x, float %y) nounwind readnone ret float %0 } Was compiled to: vmov s0, r1 bic r0, r0, #-2147483648 vmov s1, r0 vcmpe.f32 s0, #0 vmrs apsr_nzcv, fpscr it lt vneglt.f32 s1, s1 vmov r0, s1 bx lr This fails to copy the sign of -0.0f because it's lost during the float to int conversion. Also, it's sub-optimal when the inputs are in GPR registers. Now it uses integer and + or operations when it's profitable. And it's correct! lsrs r1, r1, #31 bfi r0, r1, #31, #1 bx lr rdar://8984306 llvm-svn: 125357
* Remove trailing whitespace.Jim Grosbach2011-02-113-18/+18
| | | | llvm-svn: 125327
* Add a test for the LSR issue exposed by r125254.Cameron Zwarich2011-02-111-0/+32
| | | | llvm-svn: 125325
* Tolerate degenerate phi nodes that can occur in the middle of optimizationNick Lewycky2011-02-102-0/+28
| | | | | | passes. Fixes PR9112. Patch by Jakub Staszak! llvm-svn: 125319
* If we can't avoid running loop-simplify twice for now, at least avoid runningCameron Zwarich2011-02-101-0/+3
| | | | | | iv-users twice. llvm-svn: 125318
* Rename 'loopsimplify' to 'loop-simplify'.Cameron Zwarich2011-02-1021-24/+24
| | | | llvm-svn: 125317
* Add mips o32 tests again with the hope that the buildbot won't complaint againBruno Cardoso Lopes2011-02-101-0/+322
| | | | llvm-svn: 125316
* [AVX] Implement 256-bit vector lowering for SCALAR_TO_VECTOR. ThisDavid Greene2011-02-101-0/+18
| | | | | | | largely completes support for 128-bit fallback lowering for code that is not 256-bit ready. llvm-svn: 125315
* Remove the test to silence the buildbot, will check it in again with a ↵Bruno Cardoso Lopes2011-02-101-321/+0
| | | | | | proper fix soon llvm-svn: 125305
* Clean trailing whitespace.Owen Anderson2011-02-101-20/+20
| | | | llvm-svn: 125304
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