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* Remove dead code. Improve llvm_unreachable text. Simplify some control flow.Ahmed Charles2012-02-199-53/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150918 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove some unneeded includes and fix ordering in X86ISelLowering.cpp. ↵Craig Topper2012-02-191-4/+1
| | | | | | Remove unneeded 'using namespace'. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150916 91177308-0d34-0410-b5e6-96231b3b80d8
* Unify all shuffle mask checking functions take a mask and VT instead of ↵Craig Topper2012-02-191-85/+68
| | | | | | VectorShuffleSDNode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150913 91177308-0d34-0410-b5e6-96231b3b80d8
* Make a bunch of X86ISelLowering shuffle functions static now that they are ↵Craig Topper2012-02-192-172/+51
| | | | | | no longer needed by isel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150908 91177308-0d34-0410-b5e6-96231b3b80d8
* comment fix ARM.hJia Liu2012-02-191-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150904 91177308-0d34-0410-b5e6-96231b3b80d8
* some comment fix for X86 and ARMJia Liu2012-02-198-8/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150902 91177308-0d34-0410-b5e6-96231b3b80d8
* Add vmfunc instruction to X86 assembler and disassembler.Craig Topper2012-02-194-20/+27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150899 91177308-0d34-0410-b5e6-96231b3b80d8
* Emacs-tag and some comment fix for all ARM, CellSPU, Hexagon, MBlaze, ↵Jia Liu2012-02-18293-384/+385
| | | | | | MSP430, PPC, PTX, Sparc, X86, XCore. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150878 91177308-0d34-0410-b5e6-96231b3b80d8
* Add X86InstrSVM.td that I forgot to add in r150873.Craig Topper2012-02-181-0/+62
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150874 91177308-0d34-0410-b5e6-96231b3b80d8
* Add X86 assembler and disassembler support for AMD SVM instructions. ↵Craig Topper2012-02-184-71/+61
| | | | | | Original patch by Kay Tiong Khoo. Few tweaks by me for code density and to reduce replication. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150873 91177308-0d34-0410-b5e6-96231b3b80d8
* Handle regmask operands in ARMInstrInfo.Jakob Stoklund Olesen2012-02-172-7/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150833 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix ARMBaseInstrInfo::getInstrLatency for calls.Jakob Stoklund Olesen2012-02-171-1/+1
| | | | | | Calls always clobber CPSR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150831 91177308-0d34-0410-b5e6-96231b3b80d8
* remove Emacs-tag form .cpp files in Mips Backend, and fix some typo.Jia Liu2012-02-1727-27/+27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150805 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the last of the old vector_shuffle patterns from X86 isel.Craig Topper2012-02-172-118/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150795 91177308-0d34-0410-b5e6-96231b3b80d8
* Do not promote i32 arguments to i64. This was causing unnecessary sign extensionAkira Hatanaka2012-02-172-14/+16
| | | | | | | | instructions to be emitted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150782 91177308-0d34-0410-b5e6-96231b3b80d8
* add Emacs tag and fix some comment error in file headersJia Liu2012-02-1729-28/+41
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150775 91177308-0d34-0410-b5e6-96231b3b80d8
* [fast-isel] Add support for returning non-legal types with no sign- or zero-Chad Rosier2012-02-171-6/+6
| | | | | | | | entend flag. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150774 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-enable 150652 and 150654 - Make FPSCR non-reserved, and make MachineCSE ↵Lang Hames2012-02-171-1/+0
| | | | | | bail on reserved registers. This *should* be safe as of r150786. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150769 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove comment.Akira Hatanaka2012-02-161-2/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150739 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unnecessary assignment to temporary, ResultReg.Chad Rosier2012-02-161-13/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150737 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the YMM_HI_6_15 hack.Jakob Stoklund Olesen2012-02-161-7/+0
| | | | | | | | | Call clobbers are now represented with register mask operands. The regmask can easily represent the fact that xmm6 is call-preserved while ymm6 isn't. This is automatically computed by TableGen from the CalleeSavedRegs containing xmm6. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150709 91177308-0d34-0410-b5e6-96231b3b80d8
* Use the same CALL instructions for Windows as for everything else.Jakob Stoklund Olesen2012-02-169-87/+32
| | | | | | | The different calling conventions and call-preserved registers are represented with regmask operands that are added dynamically. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150708 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove trailing whitespace. Add newline.Akira Hatanaka2012-02-161-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150706 91177308-0d34-0410-b5e6-96231b3b80d8
* Oop - r150653 + r150654 broke one of my test cases. Backing out for now...Lang Hames2012-02-161-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150655 91177308-0d34-0410-b5e6-96231b3b80d8
* FPSCR shouldn't be reserved.Lang Hames2012-02-161-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150654 91177308-0d34-0410-b5e6-96231b3b80d8
* Enable register mask operands for x86 calls.Jakob Stoklund Olesen2012-02-163-40/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Call instructions no longer have a list of 43 call-clobbered registers. Instead, they get a single register mask operand with a bit vector of call-preserved registers. This saves a lot of memory, 42 x 32 bytes = 1344 bytes per call instruction, and it speeds up building call instructions because those 43 imp-def operands no longer need to be added to use-def lists. (And removed and shifted and re-added for every explicit call operand). Passes like LiveVariables, LiveIntervals, RAGreedy, PEI, and BranchFolding are significantly faster because they can deal with call clobbers in bulk. Overall, clang -O2 is between 0% and 8% faster, uniformly distributed depending on call density in the compiled code. Debug builds using clang -O0 are 0% - 3% faster. I have verified that this patch doesn't change the assembly generated for the LLVM nightly test suite when building with -disable-copyprop and -disable-branch-fold. Branch folding behaves slightly differently in a few cases because call instructions have different hash values now. Copy propagation flushes its data structures when it crosses a register mask operand. This causes it to leave a few dead copies behind, on the order of 20 instruction across the entire nightly test suite, including SPEC. Fixing this properly would require the pass to use different data structures. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150638 91177308-0d34-0410-b5e6-96231b3b80d8
* Optimize redundant sign extends and negation of predicates.Sirish Pande2012-02-1515-209/+1037
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150606 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Replacing HexagonOptimizeSZExtends with HexagonPeephole."Eric Christopher2012-02-152-292/+129
| | | | | | This reverts commit 1656806a944bbd23e98c6e578810fe02495ab741. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150605 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Optimize redundant sign extends and negation of predicates"Eric Christopher2012-02-1513-745/+80
| | | | | | | | as it's breaking the build. This reverts commit 11241abca5e2a313412fed594bb9d9fa2a2057fb. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150604 91177308-0d34-0410-b5e6-96231b3b80d8
* Replacing HexagonOptimizeSZExtends with HexagonPeephole.Sirish Pande2012-02-152-129/+292
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150603 91177308-0d34-0410-b5e6-96231b3b80d8
* Optimize redundant sign extends and negation of predicatesSirish Pande2012-02-1513-80/+745
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150601 91177308-0d34-0410-b5e6-96231b3b80d8
* Add braces to if clause to make symmetric with associate else clause.Chad Rosier2012-02-151-18/+19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150591 91177308-0d34-0410-b5e6-96231b3b80d8
* Strip the pointer casts from the constants here.Bill Wendling2012-02-151-1/+1
| | | | | | | | | | The c'tor list is stored as a list of 'void ()*'s, so all of the functions are bitcast to that. However, the dyn_cast doesn't automagically look through bitcasts. Do that for it. <rdar://problem/10813350> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150572 91177308-0d34-0410-b5e6-96231b3b80d8
* Added TargetPassConfig::disablePass/substitutePass as a general mechanism to ↵Andrew Trick2012-02-151-4/+4
| | | | | | override specific passes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150562 91177308-0d34-0410-b5e6-96231b3b80d8
* Use a temporary variable, rather then a series of redundant calls.Chad Rosier2012-02-151-4/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150538 91177308-0d34-0410-b5e6-96231b3b80d8
* Stop custom lowering forr x86 DEC64m from happening if the load in the ↵Pete Cooper2012-02-151-0/+1
| | | | | | lowered sequence has more than 1 user git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150537 91177308-0d34-0410-b5e6-96231b3b80d8
* Use a temporary variable, rather then a series of redundant calls.Chad Rosier2012-02-151-4/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150536 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unnecessary assignment to temporary, ResultReg.Chad Rosier2012-02-141-8/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150520 91177308-0d34-0410-b5e6-96231b3b80d8
* Move old movl vector_shuffle patterns. Not needed anymore since ↵Craig Topper2012-02-142-63/+7
| | | | | | vector_shuffles shouldn't reach isel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150462 91177308-0d34-0410-b5e6-96231b3b80d8
* Third time's the charm...?Lang Hames2012-02-141-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150447 91177308-0d34-0410-b5e6-96231b3b80d8
* Unswap swap operands, partially reducing confusion.Lang Hames2012-02-141-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150444 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't reserve the R0 and R1 registers here. We don't use these registers, andBill Wendling2012-02-131-4/+9
| | | | | | | | marking them as "live-in" into a BB ruins some invariants that the back-end tries to maintain. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150437 91177308-0d34-0410-b5e6-96231b3b80d8
* Make operands for VSWP read-modify-write.Lang Hames2012-02-131-4/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150433 91177308-0d34-0410-b5e6-96231b3b80d8
* Still more vector_shuffle pattern removal.Craig Topper2012-02-132-39/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150365 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix various issues (or do cleanups) found by enabling certain MSVC warnings.Ahmed Charles2012-02-131-1/+4
| | | | | | | | | - Use unsigned literals when the desired result is unsigned. This mostly allows unsigned/signed mismatch warnings to be less noisy even if they aren't on by default. - Remove misplaced llvm_unreachable. - Add static to a declaration of a function on MSVC x86 only. - Change some instances of calling a static function through a variable to simply calling that function while removing the unused variable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150364 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove more vector_shuffle patterns for unpack. These should be target ↵Craig Topper2012-02-131-108/+40
| | | | | | specific nodes when they get to isel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150363 91177308-0d34-0410-b5e6-96231b3b80d8
* Recommit r150328. Previous test failures should be fixed by r150360.Craig Topper2012-02-132-124/+37
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150362 91177308-0d34-0410-b5e6-96231b3b80d8
* Update CanXFormVExtractWithShuffleIntoLoad to ensure bitcasts of loads only ↵Craig Topper2012-02-131-1/+4
| | | | | | have one use. Matches DAGCombiner and prevents vector_shuffles from reaching isel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150360 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r150328, "Remove more vector_shuffle patterns."NAKAMURA Takumi2012-02-132-11/+98
| | | | | | It caused 3 failures on pre-penryn and non-x86(generic) hosts. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150357 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed bug when custom lowering DEC64m on x86.Pete Cooper2012-02-131-0/+1
| | | | | | | | | | If the DEC node had more than one user, it was doing this lowering but leaving the original DEC node around and so decrementing twice. Fixes PR11964. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150356 91177308-0d34-0410-b5e6-96231b3b80d8
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