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2012-11-27Revert r168635 "Step towards implementation of pass manager with ↵Owen Anderson
doInitialization and doFinalization per module detangled from runOn?? calls, still has temporary code not to break ASAN to be removed when that pass conforms to the proposed model". It appears to have broken at least one buildbot. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168654 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-27Fast-math optimization: fold multiply by zeroMichael Ilseman
Added in first optimization using fast-math flags to serve as an example for following optimizations. SimplifyInstruction will now try to optimize an fmul observing its FastMathFlags to see if it can fold multiply by zero when 'nnan' and 'nsz' flags are set. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168648 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-27Fast-math flags for the bitcodeMichael Ilseman
Added in bitcode enum for the serializing of fast-math flags. Added in the reading/writing of fast-math flags from the OptimizationFlags record for BinaryOps. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168646 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-27Fast-math flags for LLVM IR parsing and printingMichael Ilseman
Added in the ability to read LLVM IR text that contains fast-math flags as a sequence of capital letters separated by spaces in any order. Added in the printing of the fast-math flags in a canonical order, and don't print the other flags when 'fast' is specified, as 'fast' implies all the others. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168645 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-27Make comment names match function names.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168644 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-27Add in sections for the fission case (no change so incorrect) andEric Christopher
add a TODO for starting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168643 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-27Fast-math interfaces for InstructionsMichael Ilseman
Add in getter/setter methods for Instructions, allowing them to be the interface to FPMathOperator similarly to now NUS/NSW is handled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168642 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26Make aligning by 2**4 dependent on NaCl for Mips.David Sehr
Also, make emission of mips16/nomips16 not dependent on NaCl. BUG= http://code.google.com/p/nativeclient/issues/detail?id=1711 Review URL: https://codereview.chromium.org/11308210
2012-11-27Reorder section output ordering.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168638 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-27Whitespace cleanup.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168637 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26Fix previous CL to actually work on NaCl (and not only fix non-NaCl).Eli Bendersky
std::min has to be std::max, and the alignment should not be conditioned on hasRawTextSupport BUG= http://code.google.com/p/nativeclient/issues/detail?id=1711 Review URL: https://codereview.chromium.org/11280172
2012-11-26Step towards implementation of pass manager with doInitialization and ↵Owen Anderson
doFinalization per module detangled from runOn?? calls, still has temporary code not to break ASAN to be removed when that pass conforms to the proposed model Patch by Pedro Artigas, with feedback from by Chandler Carruth. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168635 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26Add an assertion to ensure freezeReservedRegs() is only ever called once.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168633 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26Now that the X86 Maximal Stack Alignment Check pass has been removed (i.e.,Chad Rosier
r168627), we no longer need to call the freezeReservedRegs() function a second time. Previously, this pass was conservatively adding the FP to the set of reserved registers, requiring the second update to the reserved registers. rdar://12719844 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168631 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26Now that the X86 Maximal Stack Alignment Check pass has been removed (i.e.,Chad Rosier
r168627), we no longer need to call the freezeReservedRegs() function a second time. Previously, this pass was conservatively adding the FP to the set of reserved registers, requiring the second update to the reserved registers. rdar://12719844 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168630 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26Get rid of the getPointeeAlignment helper function fromEli Friedman
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
2012-11-26Remove the X86 Maximal Stack Alignment Check pass as it is no longer necessary.Chad Rosier
This pass was conservative in that it always reserved the FP to enable dynamic stack realignment, which allowed the RA to use aligned spills for vector registers. This happens even when spills were not necessary. The RA has since been improved to use unaligned spills when necessary. The new behavior is to realign the stack if the frame pointer was already reserved for some other reason, but don't reserve the frame pointer just because a function contains vector virtual registers. Part of rdar://12719844 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168627 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26Don't use iterator after being erased.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168622 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26Fix comments in HexagonOperands.td.Jyotsna Verma
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168617 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26rdar://12329730 (defect 2)Shuxin Yang
Enhancement to InstCombine. Try to catch this opportunity: --------------------------------------------------------------- ((X^C1) >> C2) ^ C3 => (X>>C2) ^ ((C1>>C2)^C3) where the subexpression "X ^ C1" has more than one uses, and "(X^C1) >> C2" has single use. ---------------------------------------------------------------- Reviewed by Nadav (with minor change per his request). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168615 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26Remove unneeded #includes.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168608 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26Fix a comment bug in toascii simplifierMeador Inge
When I migrated the toascii simplifier in r168580 Benjamin Kramer noticed a bug in one of the comments that I migrated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168605 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26instcombine: Migrate printf optimizationsMeador Inge
This patch migrates the printf optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168604 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26Move the code that uses SCEVs prior to creating the new loops. Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168601 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26Normalize splat 256bit vectors with 8 elements.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168600 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26Force function entry alignment only for NaClEli Bendersky
BUG= https://code.google.com/p/nativeclient/issues/detail?id=1711 Review URL: https://codereview.chromium.org/11418159
2012-11-26Decouple MCInstBuilder from the streamer per Eli's request.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168597 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26Remove stray trailing backslashMatt Beaumont-Gay
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168592 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26tsan: fix lint warningsDmitry Vyukov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168590 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26Add MCInstBuilder, a utility class to simplify MCInst creation similar to ↵Benjamin Kramer
MachineInstrBuilder. Simplify some repetitive code with it. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168587 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26[tsan] add fail order to compare_exchangeDmitry Vyukov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168586 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26Fix a PassManager pointer use-after-free bug.Zhou Sheng
The bug can be triggered when we require LoopInfo analysis ahead of DominatorTree construction in a Module Pass. The cause is that the LoopInfo analysis itself also invokes DominatorTree construction, therefore, when PassManager schedules LoopInfo, it will add DominatorTree first. Then after that, when the PassManger turns to schedule DominatorTree invoked by the above ModulePass, it finds there is already a DominatorTree, so it delete the redundant one. However, somehow it still try to access that pass pointer after free as code pasted below, which results in segment fault. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168581 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26instcombine: Migrate toascii optimizationsMeador Inge
This patch migrates the toascii optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168580 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26instcombine: Migrate isascii optimizationsMeador Inge
This patch migrates the isascii optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168579 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26instcombine: Migrate isdigit optimizationsMeador Inge
This patch migrates the isdigit optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168578 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26instcombine: Migrate *abs optimizationsMeador Inge
This patch migrates the *abs optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168574 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-25instcombine: Migrate ffs* optimizationsMeador Inge
This patch migrates the ffs* optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168571 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-25Move the max vector width to a constant parameter. No functionality change.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168570 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-25Fix the document style.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168569 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-25Refactor the ptr runtime check generation code. No functionality change.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168568 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-25Code Custodian:Joe Abbey
- Widespread trailing space removal - A dash of OCD spacing to block align enums - joined a line that probably needed 80 cols a while back git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168566 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-25Add support for .cfi_register now that it is easy to extent the representationRafael Espindola
to support it. Original patch with the parsing and plumbing by the PaX team and Roman Divacky. I added the bits in MCDwarf.cpp and the test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168565 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-25Move semantics are great, don't destroy the optimization opportunity with ↵Benjamin Kramer
trivial copy ctors. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168561 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-25Rename method. No functionality change.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168560 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-25The induction-pointer work is inspired by a research paper. This commit adds ↵Nadav Rotem
a reference. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168559 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-25Add support for pointer induction variables even when there is no integer ↵Nadav Rotem
induction variable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168558 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-25Refactor to make helper method static.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168557 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-25Remove duplicate check of LimitFloatPrecision. It was already checked ↵Craig Topper
earlier before IsExp10 could be set to true. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168553 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-25Factor common code out of individual if blocks into common tail.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168551 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-24Remove redundant calls to getCurDebugLoc in visitIntrinsicCall. It's already ↵Craig Topper
called at the start of the function and captured in a local variable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168548 91177308-0d34-0410-b5e6-96231b3b80d8