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* add 'REQUIRES: asserts' to a test that uses 'llc -debug'; this fixes the ↵Kostya Serebryany2013-11-21
| | | | | | no-asserts build git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195333 91177308-0d34-0410-b5e6-96231b3b80d8
* Implemented Neon scalar vdup_lane intrinsics.Ana Pazos2013-11-21
| | | | | | | | Fixed scalar dup alias and added test case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195330 91177308-0d34-0410-b5e6-96231b3b80d8
* Implemented Neon scalar by element intrinsics.Ana Pazos2013-11-21
| | | | | | | | | Intrinsics implemented: vqdmull_lane, vqdmulh_lane, vqrdmulh_lane, vqdmlal_lane, vqdmlsl_lane scalar Neon intrinsics. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195327 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't speculate loads under ThreadSanitizerKostya Serebryany2013-11-21
| | | | | | | | | | | | | | | | | Summary: Don't speculate loads under ThreadSanitizer. This fixes https://code.google.com/p/thread-sanitizer/issues/detail?id=40 Also discussed here: http://lists.cs.uiuc.edu/pipermail/llvmdev/2013-November/067929.html Reviewers: chandlerc Reviewed By: chandlerc CC: llvm-commits, dvyukov Differential Revision: http://llvm-reviews.chandlerc.com/D2227 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195324 91177308-0d34-0410-b5e6-96231b3b80d8
* The basic problem is that some mainstream programs cannot deal with the wayBill Wendling2013-11-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | clang optimizes tail calls, as in this example: int foo(void); int bar(void) { return foo(); } where the call is transformed to: calll .L0$pb .L0$pb: popl %eax .Ltmp0: addl $_GLOBAL_OFFSET_TABLE_+(.Ltmp0-.L0$pb), %eax movl foo@GOT(%eax), %eax popl %ebp jmpl *%eax # TAILCALL However, the GOT references must all be resolved at dlopen() time, and so this approach cannot be used with lazy dynamic linking (e.g. using RTLD_LAZY), which usually populates the PLT with stubs that perform the actual resolving. This patch changes X86TargetLowering::LowerCall() to skip tail call optimization, if the called function is a global or external symbol. Patch by Dimitry Andric! PR15086 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195318 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach ISel not to optimize 'optnone' functions.Paul Robinson2013-11-21
| | | | | | | Based on work by Andrea Di Biagio. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195317 91177308-0d34-0410-b5e6-96231b3b80d8
* Add, to constant islands, long jumps similar to ARM far branch.Reed Kotler2013-11-21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195312 91177308-0d34-0410-b5e6-96231b3b80d8
* PPC popcnt[dw] do not have record formsHal Finkel2013-11-20
| | | | | | | The instruction definitions incorrectly specified that popcntd and popcntw have record forms; they do not. This mistake was causing invalid code generation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195272 91177308-0d34-0410-b5e6-96231b3b80d8
* MachineBlockPlacement: Strengthen the source order bias when picking an exit ↵Benjamin Kramer2013-11-20
| | | | | | | | | | | | | | | | | | | | | | | | | block. We now only allow breaking source order if the exit block frequency is significantly higher than the other exit block. The actual bias is currently under a flag so the best cut-off can be found; the flag defaults to the old behavior. The idea is to get some benchmark coverage over different values for the flag and pick the best one. When we require the new frequency to be at least 20% higher than the old frequency I see a 5% speedup on zlib's deflate when compressing a random file on x86_64/westmere. Hal reported a small speedup on Fhourstones on a BG/Q and no regressions in the test suite. The test case is the full long_match function from zlib's deflate. I was reluctant to add it for previous tweaks to branch probabilities because it's large and potentially fragile, but changed my mind since it's an important use case and more likely to break with all the current work going into the PGO infrastructure. Differential Revision: http://llvm-reviews.chandlerc.com/D2202 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195265 91177308-0d34-0410-b5e6-96231b3b80d8
* FileCheck: fix a bug with multiple --check-prefix options. Similar to r194565Daniel Sanders2013-11-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: Directives are being ignored, when they occur between a partial-word false match and any match on another prefix. For example, with FOO and BAR prefixes: _FOO FOO: foo BAR: bar FileCheck incorrectly matches: fog bar This happens because FOO falsely matched as a partial word at '_FOO' and was ignored while BAR matched at 'BAR:'. The match of BAR is incorrectly returned as the 'first match' causing the FOO directive to be discarded. Fixed this the same way as r194565 (D2166) did for a similar test case. The partial-word false match should be counted as a match for the purposes of finding the first match of a prefix, but should be returned as a false match using CheckTy::CheckNone so that it isn't treated as a directive. Fixes PR17995 Reviewers: samsonov, arsenm Reviewed By: samsonov CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D2228 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195248 91177308-0d34-0410-b5e6-96231b3b80d8
* AVX-512: Concat 4 128-bit vectors in one 512-bit vector.Elena Demikhovsky2013-11-20
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195229 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm-cov: Added file checksum to gcno and gcda files.Yuchen Wu2013-11-20
| | | | | | | | | | | | Instead of permanently outputting "MVLL" as the file checksum, clang will create gcno and gcda checksums by hashing the destination block numbers of every arc. This allows for llvm-cov to check if the two gcov files are synchronized. Regenerated the test files so they contain the checksum. Also added negative test to ensure error when the checksums don't match. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195191 91177308-0d34-0410-b5e6-96231b3b80d8
* PPC: Optimize rldicl generation for masked shiftsHal Finkel2013-11-20
| | | | | | | | | | | | | | Masking operations (where only some number of the low bits are being kept) are selected to rldicl(x, 0, mb). If x is a logical right shift (which would become rldicl(y, 64-n, n)), we might be able to fold the two instructions together: rldicl(rldicl(x, 64-n, n), 0, mb) -> rldicl(x, 64-n, mb) for n <= mb The right shift is really a left rotate followed by a mask, and if the explicit mask is a more-restrictive sub-mask of the mask implied by the shift, only one rldicl is needed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195185 91177308-0d34-0410-b5e6-96231b3b80d8
* DebugInfo: Partial implementation of DWARF type units.David Blaikie2013-11-19
| | | | | | | | | | | | | | Emit DW_TAG_type_units into the debug_info section using compile unit headers. This is bogus/unusable by debuggers, but testable and provides more isolated review. Subsequent patches will include support for type unit headers and emission into the debug_types section, as well as comdat grouping the types based on their hash. Also the CompileUnit type will be renamed 'Unit' and relevant portions pulled out into respective CompileUnit and TypeUnit types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195166 91177308-0d34-0410-b5e6-96231b3b80d8
* SLPVectorizer: Fix stale for Value pointer arrayArnold Schwaighofer2013-11-19
| | | | | | | | | | | | | | | We are slicing an array of Value pointers and process those slices in a loop. The problem is that we might invalidate a later slice by vectorizing a former slice. Use a WeakVH to track the pointer. If the pointer is deleted or RAUW'ed we can tell. The test case will only fail when running with libgmalloc. radar://15498655 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195162 91177308-0d34-0410-b5e6-96231b3b80d8
* [mips] Resolve relocation for the stubs in MCJIT when load address is knownPetar Jovanovic2013-11-19
| | | | | | | | | | | Instead of processing relocation for branch to stubs right away, emit a modified relocation and add it to queue to be resolved later when final load address is known. This resolves seven MIPS MCJIT issues that were caused by missing relocation fixups at the end. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195157 91177308-0d34-0410-b5e6-96231b3b80d8
* Make it explicit that nulls are not allowed in names.Rafael Espindola2013-11-19
| | | | | | | | | | The object files we support use null terminated strings, so there is no way to support these. This patch adds an assert to catch bad API use and an error check in the .ll parser. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195155 91177308-0d34-0410-b5e6-96231b3b80d8
* reverts 195057 per requestJack Carter2013-11-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195152 91177308-0d34-0410-b5e6-96231b3b80d8
* Support multiple COFF sections with the same name but different COMDAT.Rafael Espindola2013-11-19
| | | | | | | | | | | | | | | | | | This is the first step to fix pr17918. It extends the .section directive a bit, inspired by what the ELF one looks like. The problem with using linkonce is that given .section foo .linkonce.... .section foo .linkonce we would already have switched sections when getting to .linkonce. The cleanest solution seems to be to add the comdat information in the .section itself. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195148 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix assembly operands for the SSE2 cvtsd2ss instruction.Cameron McInally2013-11-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195129 91177308-0d34-0410-b5e6-96231b3b80d8
* [Mips] Adjust float ABI settings in case of MIPS16 mode.Simon Atanasyan2013-11-19
| | | | | | | | | | | Hard float for mips16 means essentially to compile as soft float but to use a runtime library for soft float that is written with native mips32 floating point instructions (those runtime routines run in mips32 hard float mode). The patch reviewed by Reed Kotler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195123 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix an issue where SROA computed different results based on the relativeChandler Carruth2013-11-19
| | | | | | | | | | | | | | | | | | | | | | | | | | order of slices of the alloca which have exactly the same size and other properties. This was found by a perniciously unstable sort implementation used to flush out buggy uses of the algorithm. The fundamental idea is that findCommonType should return the best common type it can find across all of the slices in the range. There were two bugs here previously: 1) We would accept an integer type smaller than a byte-width multiple, and if there were different bit-width integer types, we would accept the first one. This caused an actual failure in the testcase updated here when the sort order changed. 2) If we found a bad combination of types or a non-load, non-store use before an integer typed load or store we would bail, but if we found the integere typed load or store, we would use it. The correct behavior is to always use an integer typed operation which covers the partition if one exists. While a clever debugging sort algorithm found problem #1 in our existing test cases, I have no useful test case ideas for #2. I spotted in by inspection when looking at this code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195118 91177308-0d34-0410-b5e6-96231b3b80d8
* Add .clang-format without column limit to subdirectory tests/.Daniel Jasper2013-11-19
| | | | | | | | | A column limit in the test folder can lead to trouble as the RUN, CHECK, etc. comments can potentially be broken over multiple lines changing their meaning. Without column limit, clang-format will simply keep the test author's line breaks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195100 91177308-0d34-0410-b5e6-96231b3b80d8
* Use symbolic operands in the patchpoint folding routine and fix a spilling bug.Andrew Trick2013-11-19
| | | | | | Fixes <rdar://15487687> [JS] AnyRegCC argument ends up being spilled git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195094 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement AArch64 neon instructions class SIMD lsone and SIMD lone-post.Hao Liu2013-11-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195078 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement AArch64 SISD intrinsics for vget_high and vget_low.Jiangning Liu2013-11-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195074 91177308-0d34-0410-b5e6-96231b3b80d8
* implement MC layer of AArch64 neon instruction PMULL and PMULL2 with 128 bit ↵Kevin Qin2013-11-19
| | | | | | integer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195072 91177308-0d34-0410-b5e6-96231b3b80d8
* Add predicate for AArch64 crypto instructions.Jiangning Liu2013-11-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195071 91177308-0d34-0410-b5e6-96231b3b80d8
* [Mips] Support for MicroMips STO refactoring.Jack Carter2013-11-19
| | | | | | | | | | | | | | | | | No true functional changes. Change the "hack" name of emitMipsHackSTOCG to emitSymSTO. Remove demonstration code in AsmParser for emitMipsHackSTOCG and emitMipsHackELFFlags. The STO field is in an ELF symbol and is not an explicit directive. That said, we are missing the compliment call in AsmParser and that will need to be addressed soon. XFAIL dummy tests for emitMipsHackELFFlags and emitMipsHackELFFlags. These will built out with following patches. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195067 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm-dwarfdump: support for emitting only the debug_types section using ↵David Blaikie2013-11-19
| | | | | | -debug-dump git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195063 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "COFF: Emit all MCSymbols rather than filtering out some of them"Reid Kleckner2013-11-18
| | | | | | | | This reverts commit r190888, to fix PR17967. The original change wasn't the right way to get @feat.00 into the object file. The right fix is to make @feat.00 be a global symbol. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195053 91177308-0d34-0410-b5e6-96231b3b80d8
* Debug info: Let LowerDbgDeclare perfom the dbg.declare -> dbg.valueAdrian Prantl2013-11-18
| | | | | | | | | | lowering only for load/stores to scalar allocas. The resulting values confuse the backend and don't add anything because we can describe array-allocas with a dbg.declare intrinsic just fine. rdar://problem/15464571 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195052 91177308-0d34-0410-b5e6-96231b3b80d8
* The 'optnone' attribute means don't inline anything into this functionPaul Robinson2013-11-18
| | | | | | | | | | | (except functions marked always_inline). Functions with 'optnone' must also have 'noinline' so they don't get inlined into any other function. Based on work by Andrea Di Biagio. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195046 91177308-0d34-0410-b5e6-96231b3b80d8
* R600/SI: Fix moveToVALU when the first operand is VSrc.Matt Arsenault2013-11-18
| | | | | | | Moving into a VSrc doesn't always work, since it could be replaced with an SGPR later. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195042 91177308-0d34-0410-b5e6-96231b3b80d8
* R600/SI: Fix multiple SGPR reads when using VCC.Matt Arsenault2013-11-18
| | | | | | | No other SGPR operands are allowed, so if VCC is used, move the other to a VGPR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195041 91177308-0d34-0410-b5e6-96231b3b80d8
* R600/SI: Implement add i64, but do not yet enable.Matt Arsenault2013-11-18
| | | | | | | | Test doesn't actually check the output. I need to fix add i64 being matched for the addressing calculations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195040 91177308-0d34-0410-b5e6-96231b3b80d8
* R600/SI: Move patterns to match add / sub to scalar instructionsMatt Arsenault2013-11-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195034 91177308-0d34-0410-b5e6-96231b3b80d8
* R600: Enable the IR structurizer by defaultTom Stellard2013-11-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195031 91177308-0d34-0410-b5e6-96231b3b80d8
* R600: Fix a crash in the AMDILCFGStrucurizerTom Stellard2013-11-18
| | | | | | | The ifPatternMatch() function was not correctly reporting the number of matches in some cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195030 91177308-0d34-0410-b5e6-96231b3b80d8
* R600/SI: Fix illegal VGPR->SGPR copy inside of loopTom Stellard2013-11-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195026 91177308-0d34-0410-b5e6-96231b3b80d8
* R600/SI: Fix another case of illegal VGPR->SGPR copyTom Stellard2013-11-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195025 91177308-0d34-0410-b5e6-96231b3b80d8
* [ASan] Fix PR17867 - make sure ASan doesn't crash if use-after-scope and ↵Alexey Samsonov2013-11-18
| | | | | | use-after-return are combined. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195014 91177308-0d34-0410-b5e6-96231b3b80d8
* [PR17978] Mark two ARM/fast-isel tests as XFAIL:vg_leak due to GV.NAKAMURA Takumi2013-11-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195010 91177308-0d34-0410-b5e6-96231b3b80d8
* LoopVectorizer: Extend the induction variable to a larger typeArnold Schwaighofer2013-11-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | In some case the loop exit count computation can overflow. Extend the type to prevent most of those cases. The problem is loops like: int main () { int a = 1; char b = 0; lbl: a &= 4; b--; if (b) goto lbl; return a; } The backedge count is 255. The induction variable type is i8. If we add one to 255 to get the exit count we overflow to zero. To work around this issue we extend the type of the induction variable to i32 in the case of i8 and i16. PR17532 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195008 91177308-0d34-0410-b5e6-96231b3b80d8
* [mips] Fix 'ran out of registers' in MIPS32 with FP64 when generating code ↵Daniel Sanders2013-11-18
| | | | | | | | | | | | for (ConstantFP 0.0) Fixed an inappropriate use of BuildPairF64 when compiling for MIPS32 with FP64 which resulted in an impossible constraint on the register allocation. It now uses BuildPairF64_64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195007 91177308-0d34-0410-b5e6-96231b3b80d8
* [mips][msa] Update encoding of bnz.v (typo).Matheus Almeida2013-11-18
| | | | | | | | Note that there's no hardware yet that relies on that encoding. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195006 91177308-0d34-0410-b5e6-96231b3b80d8
* [mips][msa] Fix immediate value of LSA instruction as it was being wrongly ↵Matheus Almeida2013-11-18
| | | | | | | | | | | encoded. The immediate field should be encoded as "imm - 1" as the CPU always adds one to that field. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195004 91177308-0d34-0410-b5e6-96231b3b80d8
* [AArch64 NEON]Add mov alias for simd copy instructions.Kevin Qin2013-11-18
| | | | | | Set some unspecified bits of INS/DUP to zero as ARMARM requested. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194996 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement the newly added ACLE functions for ld1/st1 with 2/3/4 vectors.Hao Liu2013-11-18
| | | | | | | The functions are like: vst1_s8_x2 ... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194990 91177308-0d34-0410-b5e6-96231b3b80d8
* Testcase for PR17964Bill Wendling2013-11-17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194961 91177308-0d34-0410-b5e6-96231b3b80d8
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