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2012-11-13Fix the instcombine GEP index widening transform to work correctly for vectorDuncan Sands
getelementptrs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167829 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13Relax the restrictions on vector of pointer types, and vector getelementptr.Duncan Sands
Previously in a vector of pointers, the pointer couldn't be any pointer type, it had to be a pointer to an integer or floating point type. This is a hassle for dragonegg because the GCC vectorizer happily produces vectors of pointers where the pointer is a pointer to a struct or whatever. Vector getelementptr was restricted to just one index, but now that vectors of pointers can have any pointer type it is more natural to allow arbitrary vector getelementptrs. There is however the issue of struct GEPs, where if each lane chose different struct fields then from that point on each lane will be working down into unrelated types. This seems like too much pain for too little gain, so when you have a vector struct index all the elements are required to be the same. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167828 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13DependenceAnalysis: Print all dependency pairs when dumping. Update all ↵Benjamin Kramer
testcases. Part of a patch by Preston Briggs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167827 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13Figure out <size> argument of llvm.lifetime intrinsics at the moment they ↵Alexey Samsonov
are created (during function inlining) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167821 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13instcombine: Migrate math library call simplificationsMeador Inge
This patch migrates the math library call simplifications from the simplify-libcalls pass into the instcombine library call simplifier. I have typically migrated just one simplifier at a time, but the math simplifiers are interdependent because: 1. CosOpt, PowOpt, and Exp2Opt all depend on UnaryDoubleFPOpt. 2. CosOpt, PowOpt, Exp2Opt, and UnaryDoubleFPOpt all depend on the option -enable-double-float-shrink. These two factors made migrating each of these simplifiers individually more of a pain than it would be worth. So, I migrated them all together. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167815 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13BBVectorize: Don't vectorize vector-manipulation chainsHal Finkel
Don't choose a vectorization plan containing only shuffles and vector inserts/extracts. Due to inperfections in the cost model, these can lead to infinite recusion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167811 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13Use the 'count' attribute instead of the 'upper_bound' attribute.Bill Wendling
If we have a type 'int a[1]' and a type 'int b[0]', the generated DWARF is the same for both of them because we use the 'upper_bound' attribute. Instead use the 'count' attrbute, which gives the correct number of elements in the array. <rdar://problem/12566646> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167806 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13Cleanup the main RegisterCoalescer loop.Andrew Trick
Block priorities still apply outside loops. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167793 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13revert r167740Shuxin Yang
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167787 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-12BBVectorize: Only some insert element operand pairs are free.Hal Finkel
This fixes another infinite recursion case when using target costs. We can only replace insert element input chains that are pure (end with inserting into an undef). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167784 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-12Fix test case added in patch fixing PR14314Michael Liao
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167769 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-12Update test case for r167754/r167755.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167760 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-12BBVectorize: Use a more sophisticated check for input costHal Finkel
The old checking code, which assumed that input shuffles and insert-elements could always be folded (and thus were free) is too simple. This can only happen in special circumstances. Using the simple check caused infinite recursion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167750 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-12BBVectorize: Check the types of compare instructionsHal Finkel
The pass would previously assert when trying to compute the cost of compare instructions with illegal vector types (like struct pointers). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167743 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-12This change is to fix rdar://12571717 which is about assertion in ↵Shuxin Yang
Reassociate pass. The assertion is trigged when the Reassociater tries to transform expression ... + 2 * n * 3 + 2 * m + ... into: ... + 2 * (n*3 + m). In the process of the transformation, a helper routine folds the constant 2*3 into 6, confusing optimizer which is trying the to eliminate the common factor 2, and cannot find 2 any more. Review is pending. But I'd like commit first in order to help those who are waiting for this fix. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167740 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-12misched: Infrastructure for weak DAG edges.Andrew Trick
This adds support for weak DAG edges to the general scheduling infrastructure in preparation for MachineScheduler support for heuristics based on weak edges. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167738 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-12Add a test and rename a couple of others.Eli Bendersky
Adding a test with some simple SP arithmetic, verifying that sandboxing guards are inserted correctly. Also renaming two tests to follow the test naming convention. BUG=none Review URL: https://codereview.chromium.org/11369164
2012-11-12BBVectorize: Check the input types of shuffles for legalityHal Finkel
This fixes a bug where shuffles were being fused such that the resulting input types were not legal on the target. This would occur only when both inputs and dependencies were also foldable operations (such as other shuffles) and there were other connected pairs in the same block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167731 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-12Normalize memcmp constant folding results.Meador Inge
The library call simplifier folds memcmp calls with all constant arguments to a constant. For example: memcmp("foo", "foo", 3) -> 0 memcmp("hel", "foo", 3) -> 1 memcmp("foo", "hel", 3) -> -1 The folding is implemented in terms of the system memcmp that LLVM gets linked with. It currently just blindly uses the value returned from the system memcmp as the folded constant. This patch normalizes the values returned from the system memcmp to (-1, 0, 1) so that we get consistent results across multiple platforms. The test cases were adjusted accordingly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167726 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-12Fix PR14314Michael Liao
- Fix operand order for atomic sub, where the minuend is the value loaded from memory and the subtrahend is the parameter specified. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167718 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-12[NVPTX] Add more precise PTX/SM target attributesJustin Holewinski
Each SM and PTX version is modeled as a subtarget feature/CPU. Additionally, PTX 3.1 is added as the default PTX version to be out-of-the-box compatible with CUDA 5.0. Available CPUs for this target: sm_10 - Select the sm_10 processor. sm_11 - Select the sm_11 processor. sm_12 - Select the sm_12 processor. sm_13 - Select the sm_13 processor. sm_20 - Select the sm_20 processor. sm_21 - Select the sm_21 processor. sm_30 - Select the sm_30 processor. sm_35 - Select the sm_35 processor. Available features for this target: ptx30 - Use PTX version 3.0. ptx31 - Use PTX version 3.1. sm_10 - Target SM 1.0. sm_11 - Target SM 1.1. sm_12 - Target SM 1.2. sm_13 - Target SM 1.3. sm_20 - Target SM 2.0. sm_21 - Target SM 2.1. sm_30 - Target SM 3.0. sm_35 - Target SM 3.5. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167699 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-11Remove hard-coded constant in Transforms/InstCombine/memcmp-1.llMeador Inge
Transforms/InstCombine/memcmp-1.ll has a test case that looks like: @foo = constant [4 x i8] c"foo\00" @hel = constant [4 x i8] c"hel\00" ... %mem1 = getelementptr [4 x i8]* @hel, i32 0, i32 0 %mem2 = getelementptr [4 x i8]* @foo, i32 0, i32 0 %ret = call i32 @memcmp(i8* %mem1, i8* %mem2, i32 3) ret i32 %ret ; CHECK: ret i32 2 The folded return value (2 above) is computed using the system memcmp that the compiler is linked with. This can return different values on different systems. The test was originally written on an OS X 10.7.5 x86-64 box and passed. However, it failed on one of the x86-64 FreeBSD buildbots because the system memcpy on that machine returned a different value (1 instead of 2). I fixed the test by checking the folding constants with regexes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167691 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-11instcombine: Migrate memset optimizationsMeador Inge
This patch migrates the memset optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167689 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-11instcombine: Migrate memmove optimizationsMeador Inge
This patch migrates the memmove optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167687 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-11instcombine: Migrate memcpy optimizationsMeador Inge
This patch migrates the memcpy optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167686 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-11instcombine: Migrate memcmp optimizationsMeador Inge
This patch migrates the memcmp optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167683 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-11instcombine: Migrate strstr optimizationsMeador Inge
This patch migrates the strstr optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167682 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-10instcombine: Migrate strcspn optimizationsMeador Inge
This patch migrates the strcspn optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167675 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-10Convert an improper CodeGen test to a MC test.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167663 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-10instcombine: Query target library information to gate libcall simplificationsMeador Inge
Several of the simplifiers migrated from the simplify-libcalls pass to the instcombine pass were not correctly checking the target library information to gate the simplifications. This patch ensures that the check is made. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167660 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-10xfail a bad test. This is a MC test but it's dependent on a codegen ↵Evan Cheng
optimization which is now disabled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167658 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-10Disable the Thumb no-return call optimization:Evan Cheng
mov lr, pc b.w _foo The "mov" instruction doesn't set bit zero to one, it's putting incorrect value in lr. It messes up backtraces. rdar://12663632 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167657 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-10Cleanup pcmp(e/i)str(m/i) instruction definitions and load folding support.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167652 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-09[NVPTX] Use ABI alignment for parameters when alignment is not specified.Justin Holewinski
Affects SM 2.0+. Fixes bug 13324. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167646 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-09Fix assertions in updateRegMaskSlots().Jakob Stoklund Olesen
The RegMaskSlots contains 'r' slots while NewIdx and OldIdx are 'B' slots. This broke the checks in the assertions. This fixes PR14302. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167625 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-09tsan: switch to new memory_order constants (ABI compatible)Dmitry Vyukov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167615 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-09tsan: instrument all atomics (including fetch_add, exchange, cas, etc)Dmitry Vyukov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167612 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-09Add support for memory runtime check. When we can, we calculate array bounds.Nadav Rotem
If the arrays are found to be disjoint then we run the vectorized version of the loop. If they are not, we run the scalar code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167608 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-08llvm/ConstantFolding.cpp: Make ReadDataFromGlobal() and ↵NAKAMURA Takumi
FoldReinterpretLoadFromConstPtr() Big-endian-aware. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167595 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-08Add @nacl.read.tp() intrinsic, a fast version of NaCl's tls_get() IRT interfaceMark Seaborn
This is in preparation for adding an LLVM pass that will expand out TLS (thread_local) variable accesses into calls to nacl.read.tp. On ARM, there is already an arm.thread.pointer intrinsic. We reuse the code for that. On x86, we have to add an implementation. The added code is based on x86's LowerToTLSExecModel() for the %gs:0 case, and on NaCl-MIPS' LowerGlobalTLSAddress() for the __nacl_read_tp() case. (In contrast, X86NaClRewritePass.cpp inserts a __nacl_read_tp() call at the lower MI level; we don't use that approach here.) We convert LowerINTRINSIC_WO_CHAIN() into a method in order to access the Subtarget member. This is consistent with other x86 Lower methods and with the ARM version. BUG=https://code.google.com/p/nativeclient/issues/detail?id=2837 TEST="llvm-lit test/NaCl" Review URL: https://codereview.chromium.org/11383002
2012-11-08Recommit modified r167540.Amara Emerson
Improve ARM build attribute emission for architectures types. This also changes the default architecture emitted for a generic CPU to "v7". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167574 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-08Add support of RTM from TSX extensionMichael Liao
- Add RTM code generation support throught 3 X86 intrinsics: xbegin()/xend() to start/end a transaction region, and xabort() to abort a tranaction region git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167573 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-08instcombine: Migrate strspn optimizationsMeador Inge
This patch migrates the strspn optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167568 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-07Add a relocation visitor to lib object. This works via caching relocatedEric Christopher
values in a map that can be passed to consumers. Add a testcase that ensures this works for llvm-dwarfdump. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167558 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-07Adding a simple test for sandboxing loads and storesEli Bendersky
BUG=none Review URL: https://codereview.chromium.org/11362146
2012-11-07Only do switch-to-lookup table transformation when TargetTransformInfoHans Wennborg
is available. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167552 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-07[mips] Custom-lower ISD::FRAME_TO_ARGS_OFFSET node.Akira Hatanaka
Patch by Sasa Stankovic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167548 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-07Fix bad test IR in switch_to_lookup_table.llHans Wennborg
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167543 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-07misched: Heuristics based on the machine model.Andrew Trick
misched is disabled by default. With -enable-misched, these heuristics balance the schedule to simultaneously avoid saturating processor resources, expose ILP, and minimize register pressure. I've been analyzing the performance of these heuristics on everything in the llvm test suite in addition to a few other benchmarks. I would like each heuristic check to be verified by a unit test, but I'm still trying to figure out the best way to do that. The heuristics are still in considerable flux, but as they are refined we should be rigorous about unit testing the improvements. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167527 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-06Clean up the CHECK lines to be less pedanticEli Bendersky
BUG=none Review URL: https://codereview.chromium.org/11359078
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