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2012-11-13Revert 167755/167760. We don't want to emit crash diagnostics on ↵Chad Rosier
command-line syntax errors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167849 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13Codegen support for arbitrary vector getelementptrs.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167830 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
2012-11-13misched: Allow subtargets to enable misched and dependent options.Andrew Trick
This allows me to begin enabling (or backing out) misched by default for one subtarget at a time. To run misched we typically want to: - Disable SelectionDAG scheduling (use the source order scheduler) - Enable more aggressive coalescing (until we decide to always run the coalescer this way) - Enable MachineScheduler pass itself. Disabling PostRA sched may follow for some subtargets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167826 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13Added RegisterCoalescer support for joining global copies first.Andrew Trick
This adds the -join-globalcopies option which can be enabled by default once misched is also enabled. Ideally, the register coalescer would be able to split local live ranges in a way that produces copies that can be easily resolved by the scheduler. Until then, this heuristic should be good enough to at least allow the scheduler to run after coalescing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167825 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
2012-11-13Test commit.Jyotsna Verma
Add a blank line. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167819 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13BBVectorize: Remove temporary assert used for debuggingHal Finkel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167817 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
2012-11-13Revert r167759. Ben is right this isn't likely to help much.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167809 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13misched: Don't consider artificial edges weak edges.Andrew Trick
For now be more conservative in case other out-of-tree schedulers rely on the old behavior of artificial edges. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167808 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
2012-11-12Cleanup -join-splitedges. Make the loop more obvious.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167785 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
2012-11-12Add an option to enable prototype "fission" capabilities and debug changes.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167765 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-12Cache size of PassVector to speed up getNumContainedPasses().Evan Cheng
getNumContainedPasses() used to compute the size of the vector on demand. It is called repeated in loops (such as runOnFunction()) and it can be updated while inside the loop. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167759 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-12Added a temporary option to avoid critical edges splitting.Andrew Trick
This teaches the register coalescer to be less prone to split critical edges. I am currently benchmarking this with the new (post-coalescer) scheduler. I plan to enable this by default and remove the option as soon as misched is enabled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167758 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-12Rewrite DIContext interface to take an object. Update all callers.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167757 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-12Revert r167620; this can be implemented using an existing CL option.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167755 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-12misched: rename interfaceto avoid gcc warningsAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167753 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
2012-11-12misched: Target-independent support for MacroFusion.Andrew Trick
Uses the infrastructure from r167742 to support clustering instructure that the target processor can "fuse". e.g. cmp+jmp. Next step: target hook implementations with test cases, and enable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167744 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
2012-11-12misched: Target-independent support for load/store clustering.Andrew Trick
This infrastructure is generally useful for any target that wants to strongly prefer two instructions to be adjacent after scheduling. A following checkin will add target-specific hooks with unit tests. Then this feature will be enabled by default with misched. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167742 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
2012-11-12Make TOC order deterministic by using MapVector instead of DenseMap.Ulrich Weigand
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167737 91177308-0d34-0410-b5e6-96231b3b80d8
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
2012-11-12[ASan] fixup for r167725: Don't fetch name of StructType if it is literalAlexey Samsonov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167729 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-12Fixup for r167558: Store raw pointer (instead of reference) to RelocMap in ↵Alexey Samsonov
DIContext. This is needed to prevent crashes because of dangling reference if the clients don't provide RelocMap to DIContext constructor. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167728 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
2012-11-12[ASan]: Add minimalistic support for turning off initialization-order ↵Alexey Samsonov
checking for globals of specified types. Tests for this behavior will go to ASan test suite in compiler-rt. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167725 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-12Remove unused field.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167719 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
2012-11-12Delete a stale comment. No functional change.Meador Inge
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167698 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-11Move some helper methods to being static functions in the implementation file.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167696 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
2012-11-11Use the isTruncFree and isZExtFree API to figure out of these operations are ↵Nadav Rotem
free. Thanks Andy! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167685 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-11Fix a comment typo and add comments.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167684 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
2012-11-11Add method for replacing instructions to LibCallSimplifierMeador Inge
In some cases the library call simplifier may need to replace instructions other than the library call being simplified. In those cases it may be necessary for clients of the simplifier to override how the replacements are actually done. As such, a new overrideable method for replacing instructions was added to LibCallSimplifier. A new subclass of LibCallSimplifier is also defined which overrides the instruction replacement method. This is because the instruction combiner defines its own replacement method which updates the worklist when instructions are replaced. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167681 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
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