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* [InstCombine][SSE] Add MOVMSK support to SimplifyDemandedUseBitsSimon Pilgrim2016-04-281-0/+22
| | | | | | | | | | The MOVMSK instructions copies a vector elements' sign bits to the low bits of a scalar register and zeros the high bits. This patch adds MOVMSK support to SimplifyDemandedUseBits so that its aware that the upper bits are known to be zero. It also removes the call to MOVMSK if none of the lower bits are actually required and just returns zero. Differential Revision: http://reviews.llvm.org/D19614 llvm-svn: 267873
* [X86] Remove unused operand from a function and all its callers. NFCCraig Topper2016-04-285-10/+8
| | | | llvm-svn: 267854
* [CodeGen] Default CTTZ_ZERO_UNDEF/CTLZ_ZERO_UNDEF to Expand in ↵Craig Topper2016-04-2815-85/+14
| | | | | | TargetLoweringBase. This is what the majority of the targets want and removes a bunch of code. Set it to Legal explicitly in the few cases where that's the desired behavior. llvm-svn: 267853
* CodeGen: Add DetectDeadLanes pass.Matthias Braun2016-04-284-0/+534
| | | | | | | | | | | | | | | | | | | | The DetectDeadLanes pass performs a dataflow analysis of used/defined subregister lanes across COPY instructions and instructions that will get lowered to copies. It detects dead definitions and uses reading undefined values which are obscured by COPY and subregister usage. These dead definitions cause trouble in the register coalescer which cannot deal with definitions suddenly becoming dead after coalescing COPY instructions. For now the pass only adds dead and undef flags to machine operands. It should be possible to extend it in the future to remove the dead instructions and redo the analysis for the affected virtual registers. Differential Revision: http://reviews.llvm.org/D18427 llvm-svn: 267851
* LiveIntervalAnalysis: Fix handleMove() using wrong value numbersMatthias Braun2016-04-281-2/+1
| | | | | | | | | | handleMove() was incorrectly swapping two value numbers. This was missed before because the problem only occured when moving subregister definitions and needed -verify-machineinstrs to be detected. I cannot add a testcase as long as I cannot reapply r260905/r260806. llvm-svn: 267840
* [AArch64] Expand CTTZ for all vector types.Craig Topper2016-04-281-0/+9
| | | | llvm-svn: 267837
* Use llvm:Twine instead of std::to_string.Chaoren Lin2016-04-283-11/+11
| | | | | | | | | | | | std::to_string is not available from the Android NDK. Reviewers: lhames, ovyalov, chandlerc Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D19638 llvm-svn: 267829
* [SystemZ] Support Swift Calling ConventionBryan Chan2016-04-284-3/+31
| | | | | | | | | | | | | | | | Summary: Port rL265480, rL264754, rL265997 and rL266252 to SystemZ, in order to enable the Swift port on the architecture. SwiftSelf and SwiftError are assigned to R10 and R9, respectively, which are normally callee-saved registers. For more information, see: RFC: Implementing the Swift calling convention in LLVM and Clang https://groups.google.com/forum/#!topic/llvm-dev/epDd2w93kZ0 Reviewers: kbarton, manmanren, rjmccall, uweigand Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D19414 llvm-svn: 267823
* LTO: Don't bother trying to mangle unnamed globals, as they can't be ↵Peter Collingbourne2016-04-271-0/+4
| | | | | | | | | | | | | | preserved with MustPreserveSymbols. Summary: Should fix sanitizer-windows bot. Reviewers: joker.eph Subscribers: llvm-commits, joker.eph Differential Revision: http://reviews.llvm.org/D19635 llvm-svn: 267820
* Parse module information from DBI stream.Zachary Turner2016-04-273-2/+161
| | | | | | | | | | | | This gets more data out of the DBI strema of the PDB. In particular it extracts the metadata for the list of modules (compilands) that this PDB contains info about, and adds support for dumping these fields to llvm-pdbdump. Differential Revision: http://reviews.llvm.org/D19570 Reviewed By: ruiu llvm-svn: 267818
* [ImplicitNullChecks] Properly update the live-in of the block of the memory ↵Quentin Colombet2016-04-271-1/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | operation. We basically replace: HoistBB: cond_br NullBB, NotNullBB NullBB: ... NotNullBB: <reg> = load into HoistBB <reg> = load_faulting_op NullBB uncond_br NotNullBB NullBB: ... NotNullBB: ## <reg> is now live-in of NotNullBB ... This partially fixes the machine verifier error for test/CodeGen/X86/implicit-null-check.ll, but it still fails because of the implicit CFG structure. llvm-svn: 267817
* [PGO] Promote indirect calls to conditional direct calls with value-profileRong Xu2016-04-274-1/+705
| | | | | | | | | | This patch implements the transformation that promotes indirect calls to conditional direct calls when the indirect-call value profile meta-data is available. Differential Revision: http://reviews.llvm.org/D17864 llvm-svn: 267815
* [SimplifyCFG] propagate branch metadata when creating selectSanjay Patel2016-04-271-2/+2
| | | | | | | | There's no existing test for this path, and I don't know how to expose it in a regression test, but I'm assuming there's some reason this path exists. llvm-svn: 267813
* [RuntimeDyld] Propagate another dropped error in RuntimeDyldELF.Lang Hames2016-04-271-1/+2
| | | | | | This should fix the PPC64 bots. llvm-svn: 267810
* [X86] Enable the post-RA-scheduler for clang's default 32-bit cpu.Mitch Bodart2016-04-272-12/+36
| | | | | | | | | For compilations with no explicit cpu specified, this exhibits nice gains on Silvermont, with neutral performance on big cores. Differential Revision: http://reviews.llvm.org/D19138 llvm-svn: 267809
* [X86][FastISel] Make sure we use the right register class when we select stores.Quentin Colombet2016-04-271-1/+9
| | | | llvm-svn: 267806
* [Hexagon] Merging nops in to previous packet rather than always creating a ↵Colin LeMahieu2016-04-271-17/+69
| | | | | | new one. llvm-svn: 267798
* [X86] Fix the lowering of TLS calls.Quentin Colombet2016-04-272-6/+9
| | | | | | | | | | | The callseq_end node must be glued with the TLS calls, otherwise, the generic code will miss the uses of the returned value and will mark it dead. Moreover, TLSCall 64-bit pseudo must not set an implicit-use on RDI, the pseudo uses the symbol address at this point not RDI and the lowering will do the right thing. llvm-svn: 267797
* [MCAssembler] Allow backend to finalize layout post-relaxation.Colin LeMahieu2016-04-271-0/+1
| | | | | | Differential revision: http://reviews.llvm.org/D19429 llvm-svn: 267796
* [PGO] Prohibit address recording if the function is both internal and COMDATRong Xu2016-04-271-0/+5
| | | | | | Differential Revision: http://reviews.llvm.org/D19515 llvm-svn: 267792
* AMDGPU: Account for globals in AMDGPUPromoteAlloca passMatt Arsenault2016-04-271-2/+4
| | | | | | Patch by Bas Nieuwenhuizen llvm-svn: 267791
* [RuntimeDyld] Add missing include - <string> is requried for std::to_string.Lang Hames2016-04-273-0/+3
| | | | | | | This should fix the compile error that showed up in build: http://lab.llvm.org:8011/builders/lldb-x86_64-ubuntu-14.04-buildserver/builds/6754/ llvm-svn: 267790
* [RuntimeDyld] Propagate Errors from findPPC64TOCSection.Lang Hames2016-04-271-3/+6
| | | | llvm-svn: 267789
* [ARM] Set AddPristinesAndCSRs to expandCMP_SWAP LivePhysRegs.Ahmed Bougacha2016-04-271-2/+2
| | | | | | | | | We run after PEI. Found via inspection; no obvious testcase. Follow-up to r266679. llvm-svn: 267781
* [AArch64] Set AddPristinesAndCSRs to expandCMP_SWAP LivePhysRegs.Ahmed Bougacha2016-04-271-2/+2
| | | | | | | | | We run after PEI. Found via inspection; no obvious testcase. Follow-up to r266339. llvm-svn: 267780
* [AArch64] Set correct successors in CMPXCHG pseudo expansion.Ahmed Bougacha2016-04-271-2/+4
| | | | | | | | | | | transferSuccessors() would LoadCmpBB a successor of DoneBB, whereas it should be a successor of the original MBB. Follow-up to r266339. Unfortunately, it's tricky to catch this in the verifier. llvm-svn: 267779
* [ARM] Set correct successors in CMPXCHG pseudo expansion.Ahmed Bougacha2016-04-271-2/+4
| | | | | | | | | | | | | | transferSuccessors() would LoadCmpBB a successor of DoneBB, whereas it should be a successor of the original MBB. The testcase changes are caused by Thumb2SizeReduction, which was previously confused by the broken CFG. Follow-up to r266679. Unfortunately, it's tricky to catch this in the verifier. llvm-svn: 267778
* [RuntimeDyld] Plumb Error/Expected through the internals of RuntimeDyld.Lang Hames2016-04-2713-288/+471
| | | | | | | | | | | | | Also replaces a number of calls to report_fatal_error with Error returns. The plumbing will make it easier to return errors originating in libObject. Replacing report_fatal_errors with Error returns will give JIT clients the opportunity to recover gracefully when the JIT is unable to produce/relocate code, as well as providing meaningful error messages that can be used to file bug reports. llvm-svn: 267776
* Fix build failure under NDEBUG.Than McIntosh2016-04-271-0/+4
| | | | llvm-svn: 267774
* [X86]: Quit promoting 16 bit loads to 32 bit.Kevin B. Smith2016-04-271-17/+0
| | | | | | Differential Revision: http://reviews.llvm.org/D19592 llvm-svn: 267773
* [libFuzzer] disable leak detection if we have tried it for 1000 times w/o ↵Kostya Serebryany2016-04-271-1/+2
| | | | | | finding a leak [part 2] llvm-svn: 267771
* [libFuzzer] disable leak detection if we have tried it for 1000 times w/o ↵Kostya Serebryany2016-04-274-0/+28
| | | | | | finding a leak llvm-svn: 267770
* Add optimization bisect opt-in calls for PowerPC passesAndrew Kaylor2016-04-279-3/+28
| | | | | | Differential Revision: http://reviews.llvm.org/D19554 llvm-svn: 267769
* [CodeGenPrepare] Don't sink a cast past its userDavid Majnemer2016-04-271-0/+5
| | | | | | | | | | The sink cast machinery is supposed to sink casts as close to their user as possible. However, an EH pad is the first instruction in it's basic block. Don't sink if the user is an EH pad. This fixes PR27536. llvm-svn: 267767
* Refactor debugging code, NFC.Than McIntosh2016-04-271-31/+30
| | | | | | | | | | | | | | | | | Summary: Refactor debugging routines to reduce code duplication. Remove a couple of #include's that were not needed. Don't require MachineDominator as a prereq for this pass (not needed). These changes split off from http://reviews.llvm.org/D18827. Reviewers: wmi, gbiv, qcolombet Subscribers: llvm-commits, davidxl, jevinskie Differential Revision: http://reviews.llvm.org/D18992 llvm-svn: 267766
* [NVPTX] Run NVVMReflect at the beginning of IR passes.Justin Lebar2016-04-272-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | Summary: Currently the NVVMReflect pass is run at the beginning of our backend passes. But really, it should be run as early as possible, as it's simply resolving an "if" statement in code. So copy it into TargetMachine::addEarlyAsPossiblePasses. We still run it at the beginning of the backend passes, since it's needed for correctness when lowering to nvptx. (Specifically, NVVMReflect changes each call to the __nvvm_reflect function or llvm.nvvm.reflect intrinsic into an integer constant, based on the pass's configuration. Clearly we miss many optimization opportunities if we perform this transformation at the beginning of codegen.) Reviewers: rnk Subscribers: tra, llvm-commits, jholewinski Differential Revision: http://reviews.llvm.org/D18616 llvm-svn: 267765
* [LIR] Set attributes on memset_pattern16.Ahmed Bougacha2016-04-271-0/+2
| | | | | | | | | "inferattrs" will deduce the attribute, but it will be too late for many optimizations. Set it ourselves when creating the call. Differential Revision: http://reviews.llvm.org/D17598 llvm-svn: 267762
* [LIR] Reuse variable. NFCI.Ahmed Bougacha2016-04-271-1/+1
| | | | llvm-svn: 267761
* [InferAttrs] Mark memset_pattern16 params nocapture.Ahmed Bougacha2016-04-271-0/+2
| | | | | | Differential Revision: http://reviews.llvm.org/D19471 llvm-svn: 267760
* [TLI] Unify LibFunc attribute inference. NFCI.Ahmed Bougacha2016-04-272-795/+723
| | | | | | | | | | | | | Now the pass is just a tiny wrapper around the util. This lets us reuse the logic elsewhere (done here for BuildLibCalls) instead of duplicating it. The next step is to have something like getOrInsertLibFunc that also sets the attributes. Differential Revision: http://reviews.llvm.org/D19470 llvm-svn: 267759
* [TLI] Unify LibFunc signature checking. NFCI.Ahmed Bougacha2016-04-277-711/+583
| | | | | | | | | I tried to be as close as possible to the strongest check that existed before; cleaning these up properly is left for future work. Differential Revision: http://reviews.llvm.org/D19469 llvm-svn: 267758
* [TLI] Fix indentation. NFC.Ahmed Bougacha2016-04-271-1/+1
| | | | llvm-svn: 267757
* Clean up to avoid compiler warnings for casting away const qualifiers.Sjoerd Meijer2016-04-272-4/+4
| | | | | | Differential Revision: http://reviews.llvm.org/D19598 llvm-svn: 267753
* Revert "[AMDGPU][llvm-mc] Add support of TTMP quads. Rework M0 exclusion for ↵Chad Rosier2016-04-276-39/+13
| | | | | | | | SMRD." This reverts commit r267733 due to a -Werror,-Wunused-function error. llvm-svn: 267752
* [LV] Reallow positive-stride interleaved load groups with gapsMatthew Simpson2016-04-271-9/+47
| | | | | | | | | | | | | | We previously disallowed interleaved load groups that may cause us to speculatively access memory out-of-bounds (r261331). We did this by ensuring each load group had an access corresponding to the first and last member. Instead of bailing out for these interleaved groups, this patch enables us to peel off the last vector iteration, ensuring that we execute at least one iteration of the scalar remainder loop. This solution was proposed in the review of the previous patch. Differential Revision: http://reviews.llvm.org/D19487 llvm-svn: 267751
* [SLPVectorizer] Refactor where MinVecRegSize and MaxVecRegSize live.Arch D. Robison2016-04-271-20/+28
| | | | | | | | | This is the first of two commits for extending SLP Vectorizer to deal with aggregates. This commit merely refactors existing logic. http://reviews.llvm.org/D14185 llvm-svn: 267748
* [DAGCombiner] Follow coding convention for function name (NFC)Gerolf Hoflehner2016-04-273-4/+4
| | | | llvm-svn: 267745
* [Mips] Add support for llvm.thread.pointer intrinsic.Marcin Koscielnicki2016-04-271-0/+4
| | | | | | | | This will be used to implement __builtin_thread_pointer in clang. Differential Revision: http://reviews.llvm.org/D19569 llvm-svn: 267743
* Silence a -Wdangling-elseReid Kleckner2016-04-271-1/+2
| | | | llvm-svn: 267737
* Add parentheses to silence buildbot warningMatthew Simpson2016-04-271-2/+2
| | | | llvm-svn: 267734
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