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* Temporarily enable MI-Sched on X86.Andrew Trick2013-06-2463-257/+273
| | | | | | | Sorry for the unit test churn. I'll try to make the change permanently next time. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184705 91177308-0d34-0410-b5e6-96231b3b80d8
* ARM: fix thumb1 nop decodingAmaury de la Vieuville2013-06-243-10/+4
| | | | | | | In thumb1, NOP is a pseudo-instruction equivalent to mov r8, r8. However the disassembler should not use this alias. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184703 91177308-0d34-0410-b5e6-96231b3b80d8
* ARM: fix IT decodingAmaury de la Vieuville2013-06-241-2/+6
| | | | | | mask == 0 -> UNPRED git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184702 91177308-0d34-0410-b5e6-96231b3b80d8
* ARM: enable decoding of pc-relative PLD/PLIAmaury de la Vieuville2013-06-242-0/+32
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184701 91177308-0d34-0410-b5e6-96231b3b80d8
* DebugInfo: add some testing from an overly broad end-to-end test in ClangDavid Blaikie2013-06-242-37/+79
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184692 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "LoopVectorize: Use the dependence test utility class"Arnold Schwaighofer2013-06-243-224/+2
| | | | | | | | This reverts commit cbfa1ca993363ca5c4dbf6c913abc957c584cbac. We are seeing a stage2 and stage3 miscompare on some dragonegg bots. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184690 91177308-0d34-0410-b5e6-96231b3b80d8
* LoopVectorize: Use the dependence test utility classArnold Schwaighofer2013-06-243-2/+224
| | | | | | | | | | | | | | | | | | | | | | | | | | | We now no longer need alias analysis - the cases that alias analysis would handle are now handled as accesses with a large dependence distance. We can now vectorize loops with simple constant dependence distances. for (i = 8; i < 256; ++i) { a[i] = a[i+4] * a[i+8]; } for (i = 8; i < 256; ++i) { a[i] = a[i-4] * a[i-8]; } We would be able to vectorize about 200 more loops (in many cases the cost model instructs us no to) in the test suite now. Results on x86-64 are a wash. I have seen one degradation in ammp. Interestingly, the function in which we now vectorize a loop is never executed so we probably see some instruction cache effects. There is a 2% improvement in h264ref. There is one or the other TSCV loop kernel that speeds up. radar://13681598 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184685 91177308-0d34-0410-b5e6-96231b3b80d8
* SLP Vectorizer: Add support for vectorizing parts of the tree.Nadav Rotem2013-06-241-0/+46
| | | | | | | | | | | | | | | Untill now we detected the vectorizable tree and evaluated the cost of the entire tree. With this patch we can decide to trim-out branches of the tree that are not profitable to vectorizer. Also, increase the max depth from 6 to 12. In the worse possible case where all of the code is made of diamond-shaped graph this can bring the cost to 2**10, but diamonds are not very common. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184681 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix tail merging to assign the (more) correct BasicBlock when splitting.Andrew Trick2013-06-241-2/+2
| | | | | | | | | | | This makes it possible to write unit tests that are less susceptible to minor code motion, particularly copy placement. block-placement.ll covers this case with -pre-RA-sched=source which will soon be default. One incorrectly named block is already fixed, but without this fix, enabling new coalescing and scheduling would cause more failures. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184680 91177308-0d34-0410-b5e6-96231b3b80d8
* SLP Vectorizer: Fix a bug in the code that does CSE on the generated gather ↵Nadav Rotem2013-06-231-0/+51
| | | | | | | | | | sequences. Make sure that we don't replace and RAUW two sequences if one does not dominate the other. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184674 91177308-0d34-0410-b5e6-96231b3b80d8
* DebugInfo: PR14404: Avoid truncating 64 bit values into 32 bits for ↵David Blaikie2013-06-231-0/+37
| | | | | | ULEB128/SLEB128 generation git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184669 91177308-0d34-0410-b5e6-96231b3b80d8
* AArch64: fix overzealous NEXTing for Windows testing.Tim Northover2013-06-231-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184667 91177308-0d34-0410-b5e6-96231b3b80d8
* Add MI-Sched support for x86 macro fusion.Andrew Trick2013-06-231-0/+108
| | | | | | | | This is an awful implementation of the target hook. But we don't have abstractions yet for common machine ops, and I don't see any quick way to make it table-driven. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184664 91177308-0d34-0410-b5e6-96231b3b80d8
* SLP Vectorizer: Implement a simple CSE optimization for the gather sequences.Nadav Rotem2013-06-231-0/+85
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184660 91177308-0d34-0410-b5e6-96231b3b80d8
* SLP Vectorizer: Implement multi-block slp-vectorization.Nadav Rotem2013-06-223-5/+60
| | | | | | | | | | | Rewrote the SLP-vectorization as a whole-function vectorization pass. It is now able to vectorize chains across multiple basic blocks. It still does not vectorize PHIs, but this should be easy to do now that we scan the entire function. I removed the support for extracting values from trees. We are now able to vectorize more programs, but there are some serious regressions in many workloads (such as flops-6 and mandel-2). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184647 91177308-0d34-0410-b5e6-96231b3b80d8
* Replace with a shorter test case produced by Doug Gillmore.Reed Kotler2013-06-221-6392/+28
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184645 91177308-0d34-0410-b5e6-96231b3b80d8
* DebugInfo: Support (using GNU extensions) for template template parameters ↵David Blaikie2013-06-221-24/+50
| | | | | | and parameter packs git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184643 91177308-0d34-0410-b5e6-96231b3b80d8
* [yaml2obj][ELF] Make symbol table top-level key.Sean Silva2013-06-222-25/+21
| | | | | | | | | Although in reality the symbol table in ELF resides in a section, the standard requires that there be no more than one SHT_SYMTAB. To enforce this constraint, it is cleaner to group all the symbols under a top-level `Symbols` key on the object file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184627 91177308-0d34-0410-b5e6-96231b3b80d8
* This was a nifty test, but remove it.Sean Silva2013-06-211-6/+0
| | | | | | | | | | | | | | It wouldn't really test anything that doesn't already have a more targeted test: `yaml2obj-elf-section-basic.yaml`: Already tests that section content is correctly passed though. `yaml2obj-elf-symbol-basic.yaml` (this file): Tests that the st_value and st_size attributes of `main` are set correctly. Between those two tests, disassembling the file doesn't really add anything, so just remove mention of disassembling the file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184607 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Put r184469 disassembler test back on X86"Sean Silva2013-06-212-46/+15
| | | | | | | | | This reverts commit r184602. In an upcoming commit, I will just remove the disassembler part of the test; it was mostly just a "nifty" thing marking a milestone but it doesn't test anything that isn't tested elsewhere. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184606 91177308-0d34-0410-b5e6-96231b3b80d8
* DebugInfo: Don't lose unreferenced non-trivial by-value parametersDavid Blaikie2013-06-212-1/+72
| | | | | | | | | | | | A FastISel optimization was causing us to emit no information for such parameters & when they go missing we end up emitting a different function type. By avoiding that shortcut we not only get types correct (very important) but also location information (handy) - even if it's only live at the start of a function & may be clobbered later. Reviewed/discussion by Evan Cheng & Dan Gohman. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184604 91177308-0d34-0410-b5e6-96231b3b80d8
* Put r184469 disassembler test back on X86Renato Golin2013-06-212-15/+46
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184602 91177308-0d34-0410-b5e6-96231b3b80d8
* [yaml2obj][ELF] Don't do disassembly in this test.Sean Silva2013-06-211-1/+2
| | | | | | | | | This was causing buildbot failures when build without X86 support. Is there a way to conditionalize the test on the X86 target being present? git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184597 91177308-0d34-0410-b5e6-96231b3b80d8
* Add '-mcpu=' to prevent breaking on ATOM due to different code scheduleMichael Liao2013-06-211-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184591 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "BlockFrequency: Saturate at 1 instead of 0 when multiplying a ↵Benjamin Kramer2013-06-211-65/+0
| | | | | | | | frequency with a branch probability." This reverts commit r184584. Breaks PPC selfhost. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184590 91177308-0d34-0410-b5e6-96231b3b80d8
* BlockFrequency: Saturate at 1 instead of 0 when multiplying a frequency with ↵Benjamin Kramer2013-06-211-0/+65
| | | | | | | | | | | | | | | a branch probability. Zero is used by BlockFrequencyInfo as a special "don't know" value. It also causes a sink for frequencies as you can't ever get off a zero frequency with more multiplies. This recovers a 10% regression on MultiSource/Benchmarks/7zip. A zero frequency was propagated into an inner loop causing excessive spilling. PR16402. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184584 91177308-0d34-0410-b5e6-96231b3b80d8
* [NVPTX] Add support for selecting CUDA vs OCL mode based on tripleJustin Holewinski2013-06-215-7/+11
| | | | | | IR for CUDA should use "nvptx[64]-nvidia-cuda", and IR for NV OpenCL should use "nvptx[64]-nvidia-nvcl" git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184579 91177308-0d34-0410-b5e6-96231b3b80d8
* Add missing REQUIRES: asserts in crash.ll.Andrew Trick2013-06-211-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184576 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR16360Michael Liao2013-06-211-0/+16
| | | | | | | | | When (srl (anyextend x), c) is folded into (anyextend (srl x, c)), the high bits are not cleared. Add 'and' to clear off them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184575 91177308-0d34-0410-b5e6-96231b3b80d8
* Update physreg live intervals during remat.Andrew Trick2013-06-211-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184574 91177308-0d34-0410-b5e6-96231b3b80d8
* [PowerPC] Support R_PPC_REL16 family of relocationsUlrich Weigand2013-06-211-0/+26
| | | | | | | | | | | | | The GNU assembler supports (as extension to the ABI) use of PC-relative relocations in half16 fields, which allows writing code like: li 1, base-. This patch adds support for those relocation types in the assembler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184552 91177308-0d34-0410-b5e6-96231b3b80d8
* [PowerPC] Support various tls-related modifiersUlrich Weigand2013-06-211-0/+129
| | | | | | | | | | | | The current code base only supports the minimum set of tls-related relocations and @modifiers that are necessary to support compiler- generated code. This patch extends this to the full set defined in the ABI (and supported by the GNU assembler) for the benefit of the assembler parser. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184551 91177308-0d34-0410-b5e6-96231b3b80d8
* [PowerPC] Support @higher et.al. modifiersUlrich Weigand2013-06-212-1/+29
| | | | | | | | | This adds support for the @higher, @highera, @highest, and @highesta modifers, including some missing relocation types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184550 91177308-0d34-0410-b5e6-96231b3b80d8
* [PowerPC] Support @toc@h modifierUlrich Weigand2013-06-211-0/+5
| | | | | | | | | This adds the relocation type and other necessary infrastructure to use the @toc@h modifier in the assembler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184549 91177308-0d34-0410-b5e6-96231b3b80d8
* [PowerPC] Support @h modifierUlrich Weigand2013-06-212-2/+17
| | | | | | | | | | | | | | This adds necessary infrastructure to support the @h modifier. Note that all required relocation types were already present (and unused). This patch provides support for using @h in the assembler; it would also be possible to now use this feature in code generated by the compiler, but this is not done yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184548 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix an ordering problem in the test.Manuel Klimek2013-06-211-1/+1
| | | | | | | | | The output can be in different orders, which breaks the test in some situations. I have not yet found out what the root cause of the order difference is. This fixes our internal build. If it is not the right solution, feel free to roll back. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184535 91177308-0d34-0410-b5e6-96231b3b80d8
* [yaml2obj][ELF] Allow expressing undefined symbols.Sean Silva2013-06-211-0/+4
| | | | | | | | | | Previously we unconditionally enforced that section references in symbols in the YAML had a name that was a section name present in the object, and linked the references to that section. Now, permit empty section names (already the default, if the `Section` key is not provided) to indicate SHN_UNDEF. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184513 91177308-0d34-0410-b5e6-96231b3b80d8
* [yaml2obj][ELF] Don't explicitly set `Binding` with STB_*Sean Silva2013-06-212-6/+45
| | | | | | | | | | | | | | | Instead, just have 3 sub-lists, one for each of {STB_LOCAL,STB_GLOBAL,STB_WEAK}. This allows us to be a lot more explicit w.r.t. the symbol ordering in the object file, because if we allowed explicitly setting the STB_* `Binding` key for the symbol, then we might have ended up having to shuffle STB_LOCAL symbols to the front of the list, which is likely to cause confusion and potential for error. Also, this new approach is simpler ;) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184506 91177308-0d34-0410-b5e6-96231b3b80d8
* ARM: Remove a (false) dependency on the memoryoperand's value as we do not useQuentin Colombet2013-06-202-2/+44
| | | | | | | | | | | it at the moment. This allows to form more paired loads even when stack coloring pass destroys the memoryoperand's value. <rdar://problem/13978317> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184492 91177308-0d34-0410-b5e6-96231b3b80d8
* Update the X86 disassembler to use xacquire and xrelease when appropriate.Kevin Enderby2013-06-201-1/+29
| | | | | | | | | | | | | | | | | | This is a bit tricky as the xacquire and xrelease hints use the same bytes, 0xf2 and 0xf3, as the repne and rep prefixes. Fortunately llvm has different llvm MCInst Opcode enums for rep/xrelease and repne/xacquire. So to make this work a boolean was added the InternalInstruction struct as part of the Prefix state which is set with the added logic in readPrefixes() when decoding an instruction to determine if these prefix bytes are to be disassembled as xacquire or xrelease. Then we let the matcher pick the normal prefix instructionID and we change the Opcode after that when it is set into the MCInst being created. rdar://11019859 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184490 91177308-0d34-0410-b5e6-96231b3b80d8
* R600/SI: Expand sub for v2i32 and v4i32 for SITom Stellard2013-06-201-6/+31
| | | | | | | | | | | Also add a v2i32 test to the existing v4i32 test. Patch by: Aaron Watry Reviewed-by: Tom Stellard <thomas.stellard@amd.com> Signed-off-by: Aaron Watry<awatry@gmail.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184482 91177308-0d34-0410-b5e6-96231b3b80d8
* R600/SI: Expand add for v2i32 and v4i32Tom Stellard2013-06-201-6/+31
| | | | | | | | | | | | Also add SI tests to existing file and a v2i32 test for both R600 and SI. Patch by: Aaron Watry Reviewed-by: Tom Stellard <thomas.stellard@amd.com> Signed-off-by: Aaron Watry <awatry@gmail.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184481 91177308-0d34-0410-b5e6-96231b3b80d8
* R600: Expand v2i32 load/store instead of custom loweringTom Stellard2013-06-201-0/+6
| | | | | | | | | | | | | | The custom lowering causes llc to crash with a segfault. Ideally, the custom lowering can be fixed, but this allows programs which load/store v2i32 to work without crashing. Patch by: Aaron Watry Reviewed-by: Tom Stellard <thomas.stellard@amd.com> Signed-off-by: Aaron Watry<awatry@gmail.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184480 91177308-0d34-0410-b5e6-96231b3b80d8
* [yaml2obj][ELF] Add support for st_value and st_size.Sean Silva2013-06-201-0/+16
| | | | | | | | | After this patch, the ELF file produced by `yaml2obj-elf-symbol-basic.yaml`, when linked and executed on x86_64 (under SysV ABI, obviously; I tested on Linux), produces a working executable that goes into an infinite loop! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184469 91177308-0d34-0410-b5e6-96231b3b80d8
* [yaml2obj][ELF] Allow symbols to reference sections.Sean Silva2013-06-201-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184468 91177308-0d34-0410-b5e6-96231b3b80d8
* Use only the filename when deciding if a file is a duplicate.Rafael Espindola2013-06-201-0/+2
| | | | | | Matches gnu ar behavior. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184448 91177308-0d34-0410-b5e6-96231b3b80d8
* This reverts r155000.Joey Gouly2013-06-203-4/+6
| | | | | | | | | | The cdp2 instruction should have the same restrictions as cdp on the co-processor registers. VFP instructions on v8/AArch32 share the same encoding space as cdp2. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184445 91177308-0d34-0410-b5e6-96231b3b80d8
* SLPVectorization: Add a basic support for cross-basic block slp vectorization.Nadav Rotem2013-06-201-0/+54
| | | | | | | | | We collect gather sequences when we vectorize basic blocks. Gather sequences are excellent hints for vectorization of other basic blocks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184444 91177308-0d34-0410-b5e6-96231b3b80d8
* Give this X86-specific test a triple so it's actually X86-specific.David Blaikie2013-06-201-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184443 91177308-0d34-0410-b5e6-96231b3b80d8
* [MC] Support @ variants with directional labelsUlrich Weigand2013-06-201-1/+7
| | | | | | | | | | | | | The assembler parser common code supports recognizing symbol variants using the @ modifer. On PowerPC, it should also be possible to use (some of) those modifiers with directional labels, like "1f@l". This patch adds support for accepting symbol variants on directional labels as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184437 91177308-0d34-0410-b5e6-96231b3b80d8
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