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2013-07-15Merge commit '7dfcb84fc16b3bf6b2379713b53090757f0a45f9'Eli Bendersky
Conflicts: docs/LangRef.rst include/llvm/CodeGen/CallingConvLower.h include/llvm/IRReader/IRReader.h include/llvm/Target/TargetMachine.h lib/CodeGen/CallingConvLower.cpp lib/IRReader/IRReader.cpp lib/IRReader/LLVMBuild.txt lib/IRReader/Makefile lib/LLVMBuild.txt lib/Makefile lib/Support/MemoryBuffer.cpp lib/Support/Unix/PathV2.inc lib/Target/ARM/ARMBaseInstrInfo.cpp lib/Target/ARM/ARMISelLowering.cpp lib/Target/ARM/ARMInstrInfo.td lib/Target/ARM/ARMSubtarget.cpp lib/Target/ARM/ARMTargetMachine.cpp lib/Target/Mips/CMakeLists.txt lib/Target/Mips/MipsDelaySlotFiller.cpp lib/Target/Mips/MipsISelLowering.cpp lib/Target/Mips/MipsInstrInfo.td lib/Target/Mips/MipsSubtarget.cpp lib/Target/Mips/MipsSubtarget.h lib/Target/X86/X86FastISel.cpp lib/Target/X86/X86ISelDAGToDAG.cpp lib/Target/X86/X86ISelLowering.cpp lib/Target/X86/X86InstrControl.td lib/Target/X86/X86InstrFormats.td lib/Transforms/IPO/ExtractGV.cpp lib/Transforms/InstCombine/InstCombineCompares.cpp lib/Transforms/Utils/SimplifyLibCalls.cpp test/CodeGen/X86/fast-isel-divrem.ll test/MC/ARM/data-in-code.ll tools/Makefile tools/llvm-extract/llvm-extract.cpp tools/llvm-link/CMakeLists.txt tools/opt/CMakeLists.txt tools/opt/LLVMBuild.txt tools/opt/Makefile tools/opt/opt.cpp
2013-06-17PNaCl: Turn on ABI verifier by default in sandboxed translatorMark Seaborn
Change pnacl-llc.cpp to enable the verifier. This causes two problems which we fix: * The ABI check for declared-but-not-defined functions fails in streaming mode. Fixing this would involve changing the bitcode reader. For now, disable this check when in streaming mode. Add a flag to PNaClABIVerifyModule. * ARM's GlobalMerge pass modifies functions' global variable references to use ConstantExprs that the ABI checker rejects. Address this by disabling GlobalMerge for now. GlobalMerge does not provide much benefit at the moment anyway, because, with the FlattenGlobals pass applied, GlobalMerge doesn't merge variables with alignment >1. BUG=https://code.google.com/p/nativeclient/issues/detail?id=3465 TEST=PNaCl toolchain trybots Review URL: https://codereview.chromium.org/17190002
2013-05-31Merging 182989: Fix ScalarEvolution::ComputeExitLimitFromCond for 'or' ↵Andrew Trick
conditions. Fixes PR16130 - clang produces incorrect code with loop/expression at -O2. This is a 2+ year old bug that's now holding up the release. It's a case where we knowingly made aggressive assumptions about undefined behavior. These assumptions are wrong when SCEV is computing a subexpression that does not directly control the branch. With this fix, we avoid making assumptions in those cases but still optimize the common case. SCEV's trip count computation for exits controlled by 'or' expressions is now analagous to the trip count computation for loops with multiple exits. I had already fixed the multiple exit case to be conservative. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182989 91177308-0d34-0410-b5e6-96231b3b80d8 git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_33@183013 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-26Check for metadata in PNaCl ABI checker.Jan Voung
Disallow all metadata by default. There is a flag "-allow-debug-metadata", which will be used in pnacl-ld driver, to not change the debugging workflow. That flag will not be present in the pnacl-abicheck driver though. We'll also run -strip-metadata within pnacl-ld, after optimizations are run, so that at least that part is checked inside pnacl-ld. CL for driver changes: https://codereview.chromium.org/14358048/ BUG= http://code.google.com/p/nativeclient/issues/detail?id=3348 R=dschuff@chromium.org Review URL: https://codereview.chromium.org/14329025
2013-04-10RegionInfo: Add helpers to replace entry/exit recursivelyTobias Grosser
Contributed by: Star Tan <tanmx_star@yeah.net> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179157 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-09Revert r176408 and r176407 to address PR15540.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179111 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-04CostModel: Add parameter to instruction cost to further classify operand valuesArnold Schwaighofer
On certain architectures we can support efficient vectorized version of instructions if the operand value is uniform (splat) or a constant scalar. An example of this is a vector shift on x86. We can efficiently support for (i = 0 ; i < ; i += 4) w[0:3] = v[0:3] << <2, 2, 2, 2> but not for (i = 0; i < ; i += 4) w[0:3] = v[0:3] << x[0:3] This patch adds a parameter to getArithmeticInstrCost to further qualify operand values as uniform or uniform constant. Targets can then choose to return a different cost for instructions with such operand values. A follow-up commit will test this feature on x86. radar://13576547 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178807 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-01PNaCl: Allow the ABI checker to be used from "opt"Mark Seaborn
This allows the ABI checker passes to be used in the same way as LLVM's "-verify" pass. It allows the checker to be run between other passes, and without launching pnacl-abicheck as a separate process (so without the overhead of reading bitcode into memory again). Make the ABI checker passes produce fatal errors by default, to match "-verify". This is overridden for pnacl-abicheck's use. BUG=https://code.google.com/p/nativeclient/issues/detail?id=2309 TEST=tested with pnacl-ld.py changes to use the ABI checker passes Review URL: https://codereview.chromium.org/13323006
2013-03-26Fix SCEV forgetMemoizedResults should search and destroy backedge exprs.Andrew Trick
Fixes PR15570: SEGV: SCEV back-edge info invalid after dead code removal. Indvars creates a SCEV expression for the loop's back edge taken count, then determines that the comparison is always true and removes it. When loop-unroll asks for the expression, it contains a NULL SCEVUnknkown (as a CallbackVH). forgetMemoizedResults should invalidate the loop back edges expression. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177986 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-20Merge remote-tracking branch 'origin/master'Eli Bendersky
Merge Nacl-LLVM work since the upstream merge branched
2013-03-20Add std prefixes to fix the build with xlc.Rafael Espindola
Patch by Kai <kai@redstar.de>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177574 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-18Remove unneeded #includes.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177351 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-13ABI verifier: Add standalone tool pnacl-abicheckDerek Schuff
This CL adds a standalone tool pnacl-abicheck for checking the ABI validity of a bitcode file. It also adds a flag pnaclabi-verify to llc to enable the same checking in llc. It also improves the mechanism for handling and reporting validation errors and uses it in both tools. R=jvoung@chromium.org,mseaborn@chromium.org BUG= https://code.google.com/p/nativeclient/issues/detail?id=2309 Review URL: https://codereview.chromium.org/12449014
2013-03-11Merge commit '279b9184c2ff4fea93b198a3519b8cb3a1d8d195'Eli Bendersky
Conflicts: include/llvm/CodeGen/LexicalScopes.h include/llvm/MC/MCAsmInfo.h lib/Linker/LinkArchives.cpp lib/Linker/LinkItems.cpp lib/MC/MCAsmInfo.cpp lib/MC/MCDwarf.cpp lib/Target/ARM/ARMInstrInfo.td lib/Target/ARM/ARMSubtarget.cpp lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp lib/Target/Mips/MCTargetDesc/MipsELFObjectWriter.cpp lib/Target/Mips/MCTargetDesc/MipsMCTargetDesc.cpp lib/Target/Mips/MipsAsmPrinter.cpp lib/Target/Mips/MipsDelaySlotFiller.cpp lib/Target/Mips/MipsISelDAGToDAG.cpp lib/Target/Mips/MipsSubtarget.cpp lib/Target/Mips/MipsSubtarget.h lib/Target/Mips/MipsTargetObjectFile.cpp lib/Target/X86/MCTargetDesc/X86MCAsmInfo.cpp lib/Target/X86/X86FastISel.cpp lib/Target/X86/X86ISelLowering.cpp lib/Target/X86/X86TargetMachine.cpp lib/Transforms/CMakeLists.txt lib/Transforms/LLVMBuild.txt lib/Transforms/Makefile test/MC/ARM/arm_instructions.s test/MC/X86/AlignedBundling/pad-align-to-bundle-end.s
2013-03-10Remove unneeded #includes. Use forward declarations instead.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176783 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-10Remove unneeded #includes. Use forward declarations instead.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176782 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-09Remove unneeded const_cast.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176771 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-09Use forward declaration instead of #include.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176770 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-08Remove -print-dbginfo as it is unused & bitrotten.David Blaikie
This pass hasn't been touched in two years & would fail with assertions against the current debug info metadata format (the only test case for it still uses a many-versions old debug info metadata format) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176707 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-06Memory Dependence Analysis (not mem-dep test) take advantage of ↵Shuxin Yang
"invariant.load" metadata. The "invariant.load" metadata indicates the memory unit being accessed is immutable. A load annotated with this metadata can be moved across any store. As I am not sure if it is legal to move such loads across barrier/fence, this change dose not allow such transformation. rdar://11311484 Thank Arnold for code review. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176562 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-06Remove duplicated forward declaration.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176536 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-05Fix a few typos in comments.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176519 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-05Add some constantness.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176518 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-05std::distance() == 0 means that iterators are equal. No functionality change.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176516 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-05Use the right number of slashes in comment stringArnold Schwaighofer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176504 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-05Clarify comment for function getObjectSizeArnold Schwaighofer
Clarify that we mean the object starting at the pointer to the end of the underlying object and not the size of the whole allocated object. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176491 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-02recommit r172363 & r171325 (reverted in r172756)Nuno Lopes
This adds minimalistic support for PHI nodes to llvm.objectsize() evaluation fingers crossed so that it does break clang boostrap again.. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176408 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-02add getUnderlyingObjectSize()Nuno Lopes
this is similar to getObjectSize(), but doesnt subtract the offset tweak the BasicAA code accordingly (per PR14988) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176407 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-18Use LLVM_DELETED_FUNCTION rather than '// do not implement' comments.David Blaikie
Also removes some redundant DNI comments on function declarations already using the macro. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175466 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-15Pacify -Wnon-virtual-dtorMatt Beaumont-Gay
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175324 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-15capitalize SCEV to match the current naming conventionSebastian Pop
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175302 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-15add ScevApplyRewriterSebastian Pop
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175294 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-15add SCEVParameterRewriterSebastian Pop
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175293 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-13Metadata for annotating loops as parallel. The first consumer for this Pekka Jaaskelainen
metadata is the loop vectorizer. See the documentation update for more info. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175060 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12This CL supersedes the previous 2 outstanding CLs.Derek Schuff
1) Remove the ABIVerifyErrors class since it was just a wrapper with no real functionality. Replace with a simple string ostream for now. If in the future we want to have more intelligent error handling, we can come up with something that does what we actually decide we want. 2) When printing type errors in initializers, just print the Type that was invalid, rather than the whole initializer. This is implemented by having checkTypesInValue return the Type that was invalid, rather than just a boolean. 3) Check the type of each instruction (this is just to make sure it works from the function pass). Do not, however, make the passes dependent as in the previous CL (function passes cannot depend on module passes, but there are no checks for this, and opt does not enforce the dependence, and when llc tries to enforce it, very bad things happen) 2) Style cleanup to match LLVM style. Sorry for the multiple changes in one CL, hopefully it's still small enough to be reviewable. BUG= Review URL: https://codereview.chromium.org/12224109
2013-02-09Remove unneeded #includes.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174806 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-09Remove trailing spaces.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174791 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-09Remove unneeded #includes.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174790 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-09Remove #includes from the commonly used LoopInfo.h.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174786 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-08ARM cost model: Address computation in vector mem ops not freeArnold Schwaighofer
Adds a function to target transform info to query for the cost of address computation. The cost model analysis pass now also queries this interface. The code in LoopVectorize adds the cost of address computation as part of the memory instruction cost calculation. Only there, we know whether the instruction will be scalarized or not. Increase the penality for inserting in to D registers on swift. This becomes necessary because we now always assume that address computation has a cost and three is a closer value to the architecture. radar://13097204 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174713 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-06Store bitcode verifier errors rather than dumping to stderrDerek Schuff
This allows properly implementing the analysis pass print() method, and in the future will allow the error message to be sent somewhere useful R=jvoung@chromium.org,eliben@chromium.org,mseaborn@chromium.org BUG= https://code.google.com/p/nativeclient/issues/detail?id=2309 Review URL: https://codereview.chromium.org/12220028
2013-01-31Document another instsimplify assumption.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174100 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31Cherry-pick r174067Derek Schuff
2013-01-31Move isKnownNonNull out of AliasAnalysis.h and into ValueTracking.cpp sinceDan Gohman
it isn't really an AliasAnalysis concept, and ValueTracking has similar things that it could plausibly share code with some day. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174027 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31Change GetPointerBaseWithConstantOffset's DataLayout argument from aDan Gohman
reference to a pointer, so that it can handle the case where DataLayout is not available and behave conservatively. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174024 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30Merge commit 'a662a9862501fc86904e90054f7c1519101d9126'Derek Schuff
Conflicts: include/llvm/CodeGen/IntrinsicLowering.h include/llvm/MC/MCAssembler.h include/llvm/MC/MCObjectStreamer.h lib/LLVMBuild.txt lib/Linker/LinkArchives.cpp lib/MC/MCAssembler.cpp lib/MC/MCELFStreamer.cpp lib/MC/MCParser/AsmParser.cpp lib/MC/MCPureStreamer.cpp lib/MC/WinCOFFStreamer.cpp lib/Makefile lib/Support/Unix/Memory.inc lib/Support/Unix/Process.inc lib/Support/Unix/Program.inc lib/Target/ARM/ARM.h lib/Target/ARM/ARMFastISel.cpp lib/Target/ARM/ARMISelLowering.cpp lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp lib/Target/Mips/MipsInstrFPU.td lib/Target/X86/CMakeLists.txt lib/Target/X86/X86ISelLowering.cpp lib/Target/X86/X86TargetMachine.cpp lib/Target/X86/X86TargetObjectFile.cpp lib/Transforms/InstCombine/InstCombineCalls.cpp test/CodeGen/X86/fast-isel-x86-64.ll tools/llc/llc.cpp tools/lto/LTOModule.cpp utils/TableGen/EDEmitter.cpp
2013-01-28Add a comment mentioning that InstructionSimplify routines do,Dan Gohman
in fact, resolve undef uses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173721 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-22Begin fleshing out an interface in TTI for modelling the costs ofChandler Carruth
generic function calls and intrinsics. This is somewhat overlapping with an existing intrinsic cost method, but that one seems targetted at vector intrinsics. I'll merge them or separate their names and use cases in a separate commit. This sinks the test of 'callIsSmall' down into TTI where targets can control it. The whole thing feels very hack-ish to me though. I've left a FIXME comment about the fundamental design problem this presents. It isn't yet clear to me what the users of this function *really* care about. I'll have to do more analysis to figure that out. Putting this here at least provides it access to proper analysis pass tools and other such. It also allows us to more cleanly implement the baseline cost interfaces in TTI. With this commit, it is now theoretically possible to simplify much of the inline cost analysis's handling of calls by calling through to this interface. That conversion will have to happen in subsequent commits as it requires more extensive restructuring of the inline cost analysis. The CodeMetrics class is now really only in the business of running over a block of code and aggregating the metrics on that block of code, with the actual cost evaluation done entirely in terms of TTI. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173148 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-21Switch CodeMetrics itself over to use TTI to determine if an instructionChandler Carruth
is free. The whole CodeMetrics API should probably be reworked more, but this is enough to allow deleting the duplicate code there for computing whether an instruction is free. All of the passes using this have been updated to pull in TTI and hand it to the CodeMetrics stuff. Further, a dead CodeMetrics API (analyzeFunction) is nuked for lack of users. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173036 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-21Fix indentation and formatting.Chandler Carruth
This change brought to by clang-format. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173034 91177308-0d34-0410-b5e6-96231b3b80d8
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