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* Let PEI::calculateFrameObjectOffsets compute the final stack size rather thanAkira Hatanaka2012-07-311-2/+4
| | | | | | | | computing it in MipsFrameLowering::emitPrologue. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161078 91177308-0d34-0410-b5e6-96231b3b80d8
* Expand DYNAMIC_STACKALLOC nodes rather than doing custom-lowering.Akira Hatanaka2012-07-311-10/+5
| | | | | | | | | The frame object which points to the dynamically allocated area will not be needed after changes are made to cease reserving call frames. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161076 91177308-0d34-0410-b5e6-96231b3b80d8
* When store nodes or memcpy nodes are created to copy the function callAkira Hatanaka2012-07-311-1/+3
| | | | | | | | | arguments to the stack in MipsISelLowering::LowerCall, use stack pointer and integer offset operands rather than frame object operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161068 91177308-0d34-0410-b5e6-96231b3b80d8
* [x86 frame lowering] In 32-bit mode, use ESI as the base pointer.Chad Rosier2012-07-311-2/+2
| | | | | | | Previously, we were using EBX, but PIC requires the GOT to be in EBX before function calls via PLT GOT pointer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161066 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix type of LUXC1 and SUXC1. These instructions were incorrectly defined asAkira Hatanaka2012-07-312-12/+12
| | | | | | | | | | | single-precision load and store. Also avoid selecting LUXC1 and SUXC1 instructions during isel. It is incorrect to map unaligned floating point load/store nodes to these instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161063 91177308-0d34-0410-b5e6-96231b3b80d8
* MachineSink: Sort the successors before trying to find SuccToSinkTo.Manman Ren2012-07-311-0/+54
| | | | | | | | | | | One motivating example is to sink an instruction from a basic block which has two successors: one outside the loop, the other inside the loop. We should try to sink the instruction outside the loop. rdar://11980766 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161062 91177308-0d34-0410-b5e6-96231b3b80d8
* Clear kill flags in removeCopyByCommutingDef().Jakob Stoklund Olesen2012-07-311-0/+46
| | | | | | | | | We are extending live ranges, so kill flags are not accurate. They aren't needed until they are recomputed after RA anyway. <rdar://problem/11950722> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161023 91177308-0d34-0410-b5e6-96231b3b80d8
* Reverse order of the two branches at end of a basic block if it is profitable.Manman Ren2012-07-311-0/+104
| | | | | | | | | | | | | | | | We branch to the successor with higher edge weight first. Convert from je LBB4_8 --> to outer loop jmp LBB4_14 --> to inner loop to jne LBB4_14 jmp LBB4_8 PR12750 rdar: 11393714 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161018 91177308-0d34-0410-b5e6-96231b3b80d8
* Keep empty assembly macro argument values in the middle of the list.Jim Grosbach2012-07-301-0/+12
| | | | | | | | | | | | | | | | | | | Empty macro arguments at the end of the list should be as-if not specified at all, but those in the middle of the list need to be kept so as not to screw up the positional numbering. E.g.: .macro foo foo_-bash___: nop .endm foo 1, 2, 3, 4 foo 1, , 3, 4 Should create two labels, "foo_1_2_3_4" and "foo_1__3_4". rdar://11948769 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161002 91177308-0d34-0410-b5e6-96231b3b80d8
* Consider address spaces for hashing and CSEing DAG nodes. Otherwise two ↵Pete Cooper2012-07-301-0/+16
| | | | | | loads from different x86 segments but the same address would get CSEd git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160987 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bug in ARMMachObjectWriter::RecordRelocation() in ARMMachObjectWriter.cppKevin Enderby2012-07-301-0/+44
| | | | | | | | | | where the other_half of the movt and movw relocation entries needs to get set and only with the 16 bits of the other half. rdar://10038370 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160978 91177308-0d34-0410-b5e6-96231b3b80d8
* When constant folding GEP expressions, keep the address space information of ↵Nadav Rotem2012-07-301-0/+10
| | | | | | | | | | pointers. Together with Ran Chachick <ran.chachick@intel.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160954 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r160920 and r160919 due to dragonegg and clang selfhost failureManman Ren2012-07-296-61/+54
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160927 91177308-0d34-0410-b5e6-96231b3b80d8
* Add testcases for GlobalOpt changes in r160693 and r160757.Nick Lewycky2012-07-291-3/+33
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160925 91177308-0d34-0410-b5e6-96231b3b80d8
* X86 Peephole: fold loads to the source register operand if possible.Manman Ren2012-07-282-4/+4
| | | | | | | Trying to fix the bot by specifying a triple in the failing testing cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160920 91177308-0d34-0410-b5e6-96231b3b80d8
* X86 Peephole: fold loads to the source register operand if possible.Manman Ren2012-07-286-50/+57
| | | | | | | | | | Machine CSE and other optimizations can remove instructions so folding is possible at peephole while not possible at ISel. rdar://10554090 and rdar://11873276 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160919 91177308-0d34-0410-b5e6-96231b3b80d8
* X86 Peephole: fix PR13475 in optimizeCompare.Manman Ren2012-07-281-0/+16
| | | | | | | | | | It is possible that an instruction can use and update EFLAGS. When checking the safety, we should check the usage of EFLAGS first before declaring it is safe to optimize due to the update. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160912 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a DW_AT_high_pc for CUs that are a single address range. UpdateEric Christopher2012-07-2710-23/+47
| | | | | | | | | | all tests accordingly. Fixes PR13351. Patch by shinichiro hamaji! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160899 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach CodeGenPrep to look past bitcast when it's duplicating return instructionEvan Cheng2012-07-271-0/+87
| | | | | | | | | into predecessor blocks to enable tail call optimization. rdar://11958338 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160894 91177308-0d34-0410-b5e6-96231b3b80d8
* Add <imp-def> of super-register when lowering SUBREG_TO_REG.Jakob Stoklund Olesen2012-07-271-1/+1
| | | | | | Patch by Tyler Nowicki! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160888 91177308-0d34-0410-b5e6-96231b3b80d8
* fix PR13390: do not loop forever with self-referencing self instructionsNuno Lopes2012-07-271-0/+19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160876 91177308-0d34-0410-b5e6-96231b3b80d8
* fix infinite loop in instcombine in the presence of a (malformed) ↵Nuno Lopes2012-07-271-0/+17
| | | | | | | | self-referencing select inst. This can happen as long as the instruction is not reachable. Instcombine does generate these unreachable malformed selects when doing RAUW git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160874 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify demanded bits of select sources where the condition is a constant ↵Pete Cooper2012-07-261-0/+19
| | | | | | vector git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160835 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach SimplifyDemandedBits how to look through fpext and fptrunc to simplify ↵Pete Cooper2012-07-261-0/+28
| | | | | | their operand git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160823 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate a batch of uses of sub_ss and sub_sd in the X86 target.Jakob Stoklund Olesen2012-07-261-1/+1
| | | | | | | | | | | | | | These idempotent sub-register indices don't do anything --- They simply map XMM registers to themselves. They no longer affect register classes either since the SubRegClasses field has been removed from Target.td. This patch replaces XMM->XMM EXTRACT_SUBREG and INSERT_SUBREG patterns with COPY_TO_REGCLASS patterns which simply become COPY instructions. The number of IMPLICIT_DEF instructions before register allocation is reduced, and that is the cause of the test case changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160816 91177308-0d34-0410-b5e6-96231b3b80d8
* Stop reassociate from looking through expressions of arbitrary complexity. ThisDuncan Sands2012-07-262-0/+37
| | | | | | | is a temporary measure until my fix for PR13021 is ready. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160778 91177308-0d34-0410-b5e6-96231b3b80d8
* Make l/q suffixes on AVX forms of scalar convert instructions consistent ↵Craig Topper2012-07-264-36/+36
| | | | | | with their non-AVX forms. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160775 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix call setup for PIC.Akira Hatanaka2012-07-264-51/+32
| | | | | | | Patch by Reed Kotler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160774 91177308-0d34-0410-b5e6-96231b3b80d8
* Update testing case for Atom when disabling rematerialization inManman Ren2012-07-251-1/+97
| | | | | | | | | | TwoAddressInstructionPass. The generated code for Atom has a different code sequence. This is realted to commit r160749. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160755 91177308-0d34-0410-b5e6-96231b3b80d8
* revert r160742: it's breaking CMake buildNuno Lopes2012-07-251-31/+0
| | | | | | | original commit msg: MemoryBuiltins: add support to determine the size of strdup'ed non-constant strings git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160751 91177308-0d34-0410-b5e6-96231b3b80d8
* Disable rematerialization in TwoAddressInstructionPass.Manman Ren2012-07-253-5/+6
| | | | | | | | | | | | It is redundant; RegisterCoalescer will do the remat if it can't eliminate the copy. Collected instruction counts before and after this. A few extra instructions are generated due to spilling but it is normal to see these kinds of changes with almost any small codegen change, according to Jakob. This also fixed rdar://11830760 where xor is expected instead of movi0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160749 91177308-0d34-0410-b5e6-96231b3b80d8
* MemoryBuiltins: add support to determine the size of strdup'ed non-constant ↵Nuno Lopes2012-07-251-0/+31
| | | | | | strings git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160742 91177308-0d34-0410-b5e6-96231b3b80d8
* When a return struct pointer is passed in registers, the called has nothingRafael Espindola2012-07-251-13/+40
| | | | | | to pop. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160725 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't perform an overaligned load in this test, since that's undefinedDuncan Sands2012-07-251-1/+1
| | | | | | | behaviour that might be exploited one day. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160714 91177308-0d34-0410-b5e6-96231b3b80d8
* When folding a load from a global constant, if the load started in the middleDuncan Sands2012-07-251-0/+12
| | | | | | | | | | | of an array element (rather than at the beginning of the element) and extended into the next element, then the load from the second element was being handled wrong due to incorrect updating of the notion of which byte to load next. This fixes PR13442. Thanks to Chris Smowton for reporting the problem, analyzing it and providing a fix. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160711 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate the stack slot used to save the global base register.Akira Hatanaka2012-07-254-61/+61
| | | | | | | | | | The long branch pass (fixed in r160601) no longer uses the global base register to compute addresses of branch destinations, so it is not necessary to reserve a slot on the stack. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160703 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a cpu to the test. Should fix the atom bot.Rafael Espindola2012-07-241-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160701 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a triple to the test.Rafael Espindola2012-07-241-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160698 91177308-0d34-0410-b5e6-96231b3b80d8
* In order to correctly compileRafael Espindola2012-07-241-0/+19
| | | | | | | | | | | | | | | | | struct s { double x1; float x2; }; __attribute__((regparm(3))) struct s f(int a, int b, int c); void g(void) { f(41, 42, 43); } We need to be able to represent passing the address of s to f (sret) in a register (inreg). Turns out that all that is needed is to not mark them as mutually incompatible. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160695 91177308-0d34-0410-b5e6-96231b3b80d8
* ELF does not imply GNU/Linux. Do not assume GNU conventions just because weDavid Chisnall2012-07-241-0/+20
| | | | | | | | | | | are targeting an ELF platform. Only fold gs-relative (and fs-relative) loads if it is actually sensible to do so for the target platform. This fixes PR13438. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160687 91177308-0d34-0410-b5e6-96231b3b80d8
* teach objectsize about strdup() and strndup()Nuno Lopes2012-07-241-0/+48
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160676 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach globalopt to not nuke all stores to globals. Keep them around of theyNick Lewycky2012-07-242-1/+20
| | | | | | | | | | might be deliberate "one time" leaks, so that leak checkers can find them. This is a reapply of r160602 with the fix that this time I'm committing the code I thought I was committing last time; the I->eraseFromParent() goes *after* the break out of the loop. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160664 91177308-0d34-0410-b5e6-96231b3b80d8
* Add basic ability to setup call frame, and make procedure calls.Akira Hatanaka2012-07-233-0/+51
| | | | | | | | | | Hello world will compile and execute with this patch. Patch by Reed Kotler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160651 91177308-0d34-0410-b5e6-96231b3b80d8
* An objc_retain can serve as a may-use for a different pointer.Dan Gohman2012-07-231-0/+24
| | | | | | | rdar://11931823. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160637 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a typo (the the => the)Sylvestre Ledru2012-07-232-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160621 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed DAGCombine optimizations which generate select_cc for targetsNadav Rotem2012-07-231-0/+19
| | | | | | | | | | | | that do not support it (X86 does not lower select_cc). PR: 13428 Together with Michael Kuperstein <michael.m.kuperstein@intel.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160619 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r160602.Nick Lewycky2012-07-212-21/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160603 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach globalopt to play nice with leak checkers. This is a reapplication ofNick Lewycky2012-07-212-1/+21
| | | | | | | | | r160529 that was subsequently reverted. The fix was to not call GV->eraseFromParent() right before the caller does the same. The existing testcases already caught this bug if run under valgrind. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160602 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix Mips long branch pass.Akira Hatanaka2012-07-211-4/+6
| | | | | | | | | This pass no longer requires that the global pointer value be saved to the stack or register since it uses bal instruction to compute branch distance. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160601 91177308-0d34-0410-b5e6-96231b3b80d8
* baby steps toward fixing some problems with inbound GEPs that overflow, as ↵Nuno Lopes2012-07-201-0/+10
| | | | | | | | discussed 2 months ago or so. Make sure we do not emit index computations with NSW flags so that we dont get an undef value if the GEP overflows git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160589 91177308-0d34-0410-b5e6-96231b3b80d8
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