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* 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
* DAGCombiner: Partially revert r192795, getNOT was fixed not to create ↵Benjamin Kramer2013-11-17
| | | | | | illegal constants. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194959 91177308-0d34-0410-b5e6-96231b3b80d8
* Add the cold attribute to error-reporting call sitesHal Finkel2013-11-17
| | | | | | | | | | | Generally speaking, control flow paths with error reporting calls are cold. So far, error reporting calls are calls to perror and calls to fprintf, fwrite, etc. with stderr as the stream. This can be extended in the future. The primary motivation is to improve block placement (the cold attribute affects the static branch prediction heuristics). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194943 91177308-0d34-0410-b5e6-96231b3b80d8
* Added a size field to the stack map record to handle subregister spills.Andrew Trick2013-11-17
| | | | | | | | Implementing this on bigendian platforms could get strange. I added a target hook, getStackSlotRange, per Jakob's recommendation to make this as explicit as possible. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194942 91177308-0d34-0410-b5e6-96231b3b80d8
* Use right address space pointer sizeMatt Arsenault2013-11-17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194940 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a loop rerolling passHal Finkel2013-11-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds a loop rerolling pass: the opposite of (partial) loop unrolling. The transformation aims to take loops like this: for (int i = 0; i < 3200; i += 5) { a[i] += alpha * b[i]; a[i + 1] += alpha * b[i + 1]; a[i + 2] += alpha * b[i + 2]; a[i + 3] += alpha * b[i + 3]; a[i + 4] += alpha * b[i + 4]; } and turn them into this: for (int i = 0; i < 3200; ++i) { a[i] += alpha * b[i]; } and loops like this: for (int i = 0; i < 500; ++i) { x[3*i] = foo(0); x[3*i+1] = foo(0); x[3*i+2] = foo(0); } and turn them into this: for (int i = 0; i < 1500; ++i) { x[i] = foo(0); } There are two motivations for this transformation: 1. Code-size reduction (especially relevant, obviously, when compiling for code size). 2. Providing greater choice to the loop vectorizer (and generic unroller) to choose the unrolling factor (and a better ability to vectorize). The loop vectorizer can take vector lengths and register pressure into account when choosing an unrolling factor, for example, and a pre-unrolled loop limits that choice. This is especially problematic if the manual unrolling was optimized for a machine different from the current target. The current implementation is limited to single basic-block loops only. The rerolling recognition should work regardless of how the loop iterations are intermixed within the loop body (subject to dependency and side-effect constraints), but the significant restriction is that the order of the instructions in each iteration must be identical. This seems sufficient to capture all current use cases. This pass is not currently enabled by default at any optimization level. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194939 91177308-0d34-0410-b5e6-96231b3b80d8
* Apply the InstCombine fptrunc sqrt optimization to llvm.sqrtHal Finkel2013-11-16
| | | | | | | | | | | | | | | | | | | InstCombine, in visitFPTrunc, applies the following optimization to sqrt calls: (fptrunc (sqrt (fpext x))) -> (sqrtf x) but does not apply the same optimization to llvm.sqrt. This is a problem because, to enable vectorization, Clang generates llvm.sqrt instead of sqrt in fast-math mode, and because this optimization is being applied to sqrt and not applied to llvm.sqrt, sometimes the fast-math code is slower. This change makes InstCombine apply this optimization to llvm.sqrt as well. This fixes the specific problem in PR17758, although the same underlying issue (optimizations applied to libcalls are not applied to intrinsics) exists for other optimizations in SimplifyLibCalls. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194935 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix assert on unaligned access to global with different address space size.Matt Arsenault2013-11-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194934 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix codegen for null different sized pointer.Matt Arsenault2013-11-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194932 91177308-0d34-0410-b5e6-96231b3b80d8
* R600: Make dot_4 instructions predicableVincent Lejeune2013-11-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194927 91177308-0d34-0410-b5e6-96231b3b80d8
* InstCombine: fold (A >> C) == (B >> C) --> (A^B) < (1 << C) for constant Cs.Benjamin Kramer2013-11-16
| | | | | | This is common in bitfield code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194925 91177308-0d34-0410-b5e6-96231b3b80d8
* Use correct size for address space in BasicAA.Matt Arsenault2013-11-16
| | | | | | | | | | | | The tests just hit this with a different sized address space since I haven't figured out how to use this to break it. I thought I committed this a long time ago, and I'm not sure why missing this hasn't caused any problems. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194903 91177308-0d34-0410-b5e6-96231b3b80d8
* For dwarf4 use the correct form for referencing debug_loc locations,Eric Christopher2013-11-16
| | | | | | | | | and update test cases accordingly. This doesn't affect the output dumped using llvm-dwarfdump, but readelf does now dump the debug_loc section. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194898 91177308-0d34-0410-b5e6-96231b3b80d8
* Implemented aarch64 Neon scalar vmulx_lane intrinsicsAna Pazos2013-11-15
| | | | | | | | | | | | | | | | Implemented aarch64 Neon scalar vfma_lane intrinsics Implemented aarch64 Neon scalar vfms_lane intrinsics Implemented legacy vmul_n_f64, vmul_lane_f64, vmul_laneq_f64 intrinsics (v1f64 parameter type) using Neon scalar instructions. Implemented legacy vfma_lane_f64, vfms_lane_f64, vfma_laneq_f64, vfms_laneq_f64 intrinsics (v1f64 parameter type) using Neon scalar instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194888 91177308-0d34-0410-b5e6-96231b3b80d8
* LoopVectorizer: Use abi alignment for accesses with no alignmentArnold Schwaighofer2013-11-15
| | | | | | | | | | | When we vectorize a scalar access with no alignment specified, we have to set the target's abi alignment of the scalar access on the vectorized access. Using the same alignment of zero would be wrong because most targets will have a bigger abi alignment for vector types. This probably fixes PR17878. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194876 91177308-0d34-0410-b5e6-96231b3b80d8
* [AArch64] Fix the scalar NEON ACLE functions so that they return float/doubleChad Rosier2013-11-15
| | | | | | rather than the vector equivalent. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194853 91177308-0d34-0410-b5e6-96231b3b80d8
* Path: Recognize COFF import library file magic.Rui Ueyama2013-11-15
| | | | | | | | | | | | Summary: Make identify_magic to recognize COFF import file. Reviewers: Bigcheese CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D2165 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194852 91177308-0d34-0410-b5e6-96231b3b80d8
* ArgumentPromotion: correctly transfer TBAA tags and alignments.Manman Ren2013-11-15
| | | | | | | | | | | | | | | We used to use std::map<IndicesVector, LoadInst*> for OriginalLoads, and when we try to promote two arguments, they will both write to OriginalLoads causing created loads for the two arguments to have the same original load. And the same tbaa tag and alignment will be put to the created loads for the two arguments. The fix is to use std::map<std::pair<Argument*, IndicesVector>, LoadInst*> for OriginalLoads, so each Argument will write to different parts of the map. PR17906 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194846 91177308-0d34-0410-b5e6-96231b3b80d8
* Avoid illegal integer promotion in fastiselBob Wilson2013-11-15
| | | | | | | | | | | | | | | | | Stop folding constant adds into GEP when the type size doesn't match. Otherwise, the adds' operands are effectively being promoted, changing the conditions of an overflow. Results are different when: sext(a) + sext(b) != sext(a + b) Problem originally found on x86-64, but also fixed issues with ARM and PPC, which used similar code. <rdar://problem/15292280> Patch by Duncan Exon Smith! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194840 91177308-0d34-0410-b5e6-96231b3b80d8
* R600/SI: Add VReg_96 register class to SIRegisterInfo::hasVGPRs()Tom Stellard2013-11-15
| | | | | | This fixes a crash with GNOME settings manager. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194836 91177308-0d34-0410-b5e6-96231b3b80d8
* [mips][msa] Merge basic_operations_little.ll into basic_operations.ll.Daniel Sanders2013-11-15
| | | | | | | | | Now that FileCheck supports multiple check prefixes, we don't need to keep the little and big endian versions of this test separate anymore. Merge them back together. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194826 91177308-0d34-0410-b5e6-96231b3b80d8
* Add AVX512 unmasked FMA intrinsics and support.Cameron McInally2013-11-15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194824 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix illegal DAG produced by SelectionDAG::getConstant() for v2i64 typeDaniel Sanders2013-11-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: When getConstant() is called for an expanded vector type, it is split into multiple scalar constants which are then combined using appropriate build_vector and bitcast operations. In addition to the usual big/little endian differences, the case where the element-order of the vector does not have the same endianness as the elements themselves is also accounted for. For example, for v4i32 on big-endian MIPS, the byte-order of the vector is <3210,7654,BA98,FEDC>. For little-endian, it is <0123,4567,89AB,CDEF>. Handling this case turns out to be a nop since getConstant() returns a splatted vector (so reversing the element order doesn't change the value) This fixes a number of cases in MIPS MSA where calling getConstant() during operation legalization introduces illegal types (e.g. to legalize v2i64 UNDEF into a v2i64 BUILD_VECTOR of illegal i64 zeros). It should also handle bigger differences between illegal and legal types such as legalizing v2i64 into v8i16. lowerMSASplatImm() in the MIPS backend no longer needs to avoid calling getConstant() so this function has been updated in the same patch. For the sake of transparency, the steps I've taken since the review are: * Added 'virtual' to isVectorEltOrderLittleEndian() as requested. This revealed that the MIPS tests were falsely passing because a polymorphic function was not actually polymorphic in the reviewed patch. * Fixed the tests that were now failing. This involved deleting the code to handle the MIPS MSA element-order (which was previously doing an byte-order swap instead of an element-order swap). This left isVectorEltOrderLittleEndian() unused and it was deleted. * Fixed build failures caused by rebasing beyond r194467-r194472. These build failures involved the bset, bneg, and bclr instructions added in these commits using lowerMSASplatImm() in a way that was no longer valid after this patch. Some of these were fixed by calling SelectionDAG::getConstant() instead, others were fixed by a new function getBuildVectorSplat() that provided the removed functionality of lowerMSASplatImm() in a more sensible way. Reviewers: bkramer Reviewed By: bkramer CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D1973 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194811 91177308-0d34-0410-b5e6-96231b3b80d8
* [NVPTX] Fix handling of indirect callsJustin Holewinski2013-11-15
| | | | | | Using a special machine node is cleaner than an InlineAsm node, and fixes an assertion failure in InstrEmitter git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194810 91177308-0d34-0410-b5e6-96231b3b80d8
* [mips][msa] Build all the tests in little and big endian modes and correct ↵Daniel Sanders2013-11-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | an incorrect test. Summary: This patch (correctly) breaks some MSA tests by exposing the cases when SelectionDAG::getConstant() produces illegal types. These have been temporarily marked XFAIL and the XFAIL flag will be removed when SelectionDAG::getConstant() is fixed. There are three categories of failure: * Immediate instructions are not selected in one endian mode. * Immediates used in ldi.[bhwd] must be different according to endianness. (this only affects cases where the 'wrong' ldi is used to load the correct bitpattern. E.g. (bitcast:v2i64 (build_vector:v4i32 ...))) * Non-immediate instructions that rely on immediates affected by the previous two categories as part of their match pattern. For example, the bset match pattern is the vector equivalent of 'ws | (1 << wt)'. One test needed correcting to expect different output depending on whether big or little endian was in use. This test was test/CodeGen/Mips/msa/basic_operations.ll and experiences the second category of failure shown above. The little endian version of this test is named basic_operations_little.ll and will be merged back into basic_operations.ll in a follow up commit now that FileCheck supports multiple check prefixes. Reviewers: bkramer, jacksprat, dsanders Reviewed By: dsanders CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D1972 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194806 91177308-0d34-0410-b5e6-96231b3b80d8
* Redirect unused test case output to /dev/nullAlexey Samsonov2013-11-15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194798 91177308-0d34-0410-b5e6-96231b3b80d8
* Use instr mapping for microMIPS in llvm-mc.Zoran Jovanovic2013-11-15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194792 91177308-0d34-0410-b5e6-96231b3b80d8
* Reapply "[asan] Poor man's coverage that works with ASan"Bob Wilson2013-11-15
| | | | | | | | I was able to successfully run a bootstrapped LTO build of clang with r194701, so this change does not seem to be the cause of our failing buildbots. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194789 91177308-0d34-0410-b5e6-96231b3b80d8
* Platform proof a test case.Andrew Trick2013-11-15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194788 91177308-0d34-0410-b5e6-96231b3b80d8
* Add instcombine visitor for addrspacecastMatt Arsenault2013-11-15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194786 91177308-0d34-0410-b5e6-96231b3b80d8
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