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2013-02-19Fix GCMetadaPrinter::finishAssembly not executed, patch by Yiannis Tsiouris.Benjamin Kramer
Due to the execution order of doFinalization functions, the GC information were deleted before AsmPrinter::doFinalization was executed. Thus, the GCMetadataPrinter::finishAssembly was never called. The patch fixes that by moving the code of the GCInfoDeleter::doFinalization to Printer::doFinalization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175528 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-19More const correcting of stack coloring.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175490 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-19Const-correct the stack coloring code.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175488 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-19Avoid extra DenseMap lookups in StackColoring::calculateLocalLiveness.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175487 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-19Make the dump() function const and reduce the number of hash lookups it ↵Craig Topper
performs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175485 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-19Use a reference into the BlockLiveness DenseMap to avoid repeated hash ↵Craig Topper
lookups in collectMarkers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175484 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-18Support for HiPE-compatible code emission, patch by Yiannis Tsiouris.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175457 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-18[ms-inline asm] Remove a redundant call to the setHasMSInlineAsm function.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175456 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-18[ms-inline asm] Fix undefined behavior to reset hasMSInlineAsm in advance of ↵NAKAMURA Takumi
SelectAllBasicBlocks(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175422 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-17Remove use of reverse iterators in repairIntervalsInRange(). While they wereCameron Zwarich
arguably better than forward iterators for this use case, they are confusing and there are some implementation problems with reverse iterators and MI bundles. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175393 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-17Use ArrayRef instead of a reference to a SmallVectorImpl.Cameron Zwarich
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175385 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-17Fix a conversion from a forward iterator to a reverse iterator inCameron Zwarich
MachineBasicBlock::SplitCriticalEdge. Since this is an iterator rather than an instr_iterator, the isBundled() check only passes if getFirstTerminator() returned end() and the garbage memory happens to lean that way. Multiple successors can be present without any terminator instructions in the case of exception handling with a fallthrough. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175383 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-17Add support for updating the LiveIntervals of registers used by 'exotic'Cameron Zwarich
terminators that actually have register uses when splitting critical edges. This commit also introduces a method repairIntervalsInRange() on LiveIntervals, which allows for repairing LiveIntervals in a small range after an arbitrary target hook modifies, inserts, and removes instructions. It's pretty limited right now, but I hope to extend it to support all of the things that are done by the convertToThreeAddress() target hooks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175382 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-16Replace erase loop with std::remove_if.Benjamin Kramer
This avoids unnecessary copies. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175367 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-16Replace loop with std::find.Benjamin Kramer
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175366 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-16LegalizeDAG.cpp doesn't need DenseMap.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175365 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-16Use const reference instead of vector object when passing an argument toJakub Staszak
updateScheduledPressure method. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175362 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-16[ms-inline asm] Do not omit the frame pointer if we have ms-inline assembly.Chad Rosier
If the frame pointer is omitted, and any stack changes occur in the inline assembly, e.g.: "pusha", then any C local variable or C argument references will be incorrect. I pass no judgement on anyone who would do such a thing. ;) rdar://13218191 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175334 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-15Use the 'target-features' and 'target-cpu' attributes to reset the subtarget ↵Bill Wendling
features. If two functions require different features (e.g., `-mno-sse' vs. `-msse') then we want to honor that, especially during LTO. We can do that by resetting the subtarget's features depending upon the 'target-feature' attribute. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175314 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-15enable SDISel sincos optimization for GNU environmentsPaul Redmond
- add sincos to runtime library if target triple environment is GNU - added canCombineSinCosLibcall() which checks that sincos is in the RTL and if the environment is GNU then unsafe fpmath is enabled (required to preserve errno) - extended sincos-opt lit test Reviewed by: Hal Finkel git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175283 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-15Make helpers static. Add missing include so LLVMInitializeObjCARCOpts gets C ↵Benjamin Kramer
linkage. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175264 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-14Dont merge consecutive loads/stores into vectors when noimplicitfloat is used.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175190 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-14Add some legality checks for SETCC before introducing it in the DAG combiner ↵Owen Anderson
post-operand legalization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175149 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-14RegisterCoalescer::reMaterializeTrivialDef() can constrain the destinationCameron Zwarich
register class to match the defining instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175130 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-14Fix RegisterCoalescer::rematerializeTrivialDef() so that it works on flippedCameron Zwarich
CoalescerPairs. Also, make it take a CoalescerPair directly like other methods of RegisterCoalescer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175123 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-14Fix some issues with rematerialization in RegisterCoalescer when the destinationCameron Zwarich
of the copy is a subregister def. The current code assumes that it can do a full def of the destination register, but it is not checking that the def operand is read-undef. It also doesn't clear the subregister index of the destination in the new instruction to reflect the full subregister def. These issues were found running 'make check' with my next commit that enables rematerialization in more cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175122 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-13Clean up LDV, no functionality change.Manman Ren
Remove dead functions: renameRegister Move private member variables from LDV to Impl Remove ssp/uwtable from testing case git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175072 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-13MIsched: HazardRecognizers are created for each DAG. Free them.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175067 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-13Fix comment.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175024 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-13Debug Info: LiveDebugVarible can remove DBG_VALUEs, make sure we emit them back.Manman Ren
RegisterCoalescer used to depend on LiveDebugVariable. LDV removes DBG_VALUEs without emitting them at the end. We fix this by removing LDV from RegisterCoalescer. Also add an assertion to make sure we call emitDebugValues if DBG_VALUEs are removed at runOnMachineFunction. rdar://problem/13183203 Reviewed by Andy & Jakob git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175023 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12Add static cast to unsigned char whenever a character classification ↵Guy Benyei
function is called with a signed char argument, in order to avoid assertions in Windows Debug configuration. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175006 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12Allow optionally generating pubnames section in DWARF info. IntroduceKrzysztof Parzyszek
option "generate-dwarf-pubnames" to control it, set to "false" by default. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174981 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12Equal treatment of labels and other terminators in MI DAG construction.Sergei Larin
MI sched DAG construction allows targets to include terminators into scheduling DAG. Extend this functionality to labels as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174977 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12PR14562 - Truncation of left shift became undefPaul Redmond
DAGCombiner::ReduceLoadWidth was converting (trunc i32 (shl i64 v, 32)) into (shl i32 v, 32) into undef. To prevent this, check the shift count against the final result size. Patch by: Kevin Schoedel Reviewed by: Nadav Rotem git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174972 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12Don't consider definitions by other PHIs live-in when trimming a PHI source'sCameron Zwarich
live range after inserting a copy at the end of a block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174945 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12Fix indentation.Cameron Zwarich
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174944 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12Add a hidden option to PHIElimination to split all critical edges. This isCameron Zwarich
particularly useful for catching issues with architectures that have exotic terminators like MIPS. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174938 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12Add blocks to the LiveIntervalAnalysis RegMaskBlocks array when splittingCameron Zwarich
a critical edge. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174936 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12Fix the updating of LiveIntervals after splitting a critical edge. PHI operandCameron Zwarich
live ranges should always be extended, and the only successor that should be considered for extension of other ranges is the target of the split edge. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174935 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12Check type for legality before forming a select from loads.Pete Cooper
Sorry for the lack of a test case. I tried writing one for i386 as i know selects are illegal on this target, but they are actually considered legal by isel and expanded later. I can't see any targets to trigger this, but checking for the legality of a node before forming it is general goodness. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174934 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-11Add support for updating LiveIntervals to ↵Cameron Zwarich
MachineBasicBlock::SplitCriticalEdge(). This is currently a bit hairier than it needs to be, since depending on where the split block resides the end ListEntry of the split block may be the end ListEntry of the original block or a new entry. Some changes to the SlotIndexes updating should make it possible to eliminate the two cases here. This also isn't as optimized as it could be. In the future Liveinterval should probably get a flag that indicates whether the LiveInterval is within a single basic block. We could ignore all such intervals when splitting an edge. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174870 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-11Update SlotIndexes after updateTerminator() possibly removes instructions. I amCameron Zwarich
really trying to avoid piping SlotIndexes through to RemoveBranch() and friends. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174869 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-11Revert "Rename LLVMContext diagnostic handler types and functions."Bob Wilson
This reverts my commit 171047. Now that I've removed my misguided attempt to support backend warnings, these diagnostics are only about inline assembly. It would take quite a bit more work to generalize them properly, so I'm just reverting this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174860 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-11Currently, codegen may spent some time in SDISel passes even if an entireEvan Cheng
function is successfully handled by fast-isel. That's because function arguments are *always* handled by SDISel. Introduce FastLowerArguments to allow each target to provide hook to handle formal argument lowering. As a proof-of-concept, add ARMFastIsel::FastLowerArguments to handle functions with 4 or fewer scalar integer (i8, i16, or i32) arguments. It completely eliminates the need for SDISel for trivial functions. rdar://13163905 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174855 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-11Remove unnecessary code.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174854 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-10Fix the unused but nearly correct method SlotIndexes::insertMBBInMaps() and addCameron Zwarich
support for updating SlotIndexes to MachineBasicBlock::SplitCriticalEdge(). This calls renumberIndexes() every time; it should be improved to only renumber locally. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174851 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-10Abstract the liveness checking in PHIElimination::SplitPHIEdges() to supportCameron Zwarich
both LiveVariables and LiveIntervals. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174850 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-10Add support for updating LiveIntervals to PHIElimination. If LiveIntervals areCameron Zwarich
present, it currently verifies them with the MachineVerifier, and this passed all of the test cases in 'make check' (when accounting for existing verifier errors). There were some assertion failures in the two-address pass, but they also happened on code without phis and look like they are caused by different kill flags from LiveIntervals. The only part that doesn't work is the critical edge splitting heuristic, because there isn't currently an efficient way to update LiveIntervals after splitting an edge. I'll probably start by implementing the slow fallback and test that it works before tackling the fast path for single-block ranges. The existing code that updates LiveVariables is fairly slow as it is. There isn't a command-line option for enabling this; instead, just edit PHIElimination.cpp to require LiveIntervals. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174831 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-10Fix a typo.Cameron Zwarich
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174830 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-10Remove ancient references to 'atomic' phis in PHIElimination that don't reallyCameron Zwarich
make sense anymore. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174829 91177308-0d34-0410-b5e6-96231b3b80d8
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