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* Some revisions to Devang's change r136759 for merged global debug info.Bob Wilson2011-08-031-23/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136802 91177308-0d34-0410-b5e6-96231b3b80d8
* SCEV: Use AssertingVH to catch dangling BasicBlock* when passes forgetAndrew Trick2011-08-032-2/+17
| | | | | | | to notify SCEV of a change. Add forgetLoop in a couple of those places. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136797 91177308-0d34-0410-b5e6-96231b3b80d8
* whitespaceAndrew Trick2011-08-031-7/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136795 91177308-0d34-0410-b5e6-96231b3b80d8
* Handle IMPLICIT_DEF instructions in X86FloatingPoint.Jakob Stoklund Olesen2011-08-031-0/+13
| | | | | | This fixes PR10575. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136787 91177308-0d34-0410-b5e6-96231b3b80d8
* fix PR10286, a problem with the .ll printer handling block addresses that ↵Chris Lattner2011-08-031-11/+20
| | | | | | are out-of-scope. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136768 91177308-0d34-0410-b5e6-96231b3b80d8
* Use byte offset, instead of element number, to access merged global.Devang Patel2011-08-031-3/+21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136759 91177308-0d34-0410-b5e6-96231b3b80d8
* Small cleanups:Nick Lewycky2011-08-031-3/+2
| | | | | | | | | | - use SmallVectorImpl& for the function argument. - ignore the operands on the GEP, even if they aren't constant! Much as we pretend the malloc succeeds, we pretend that malloc + whatever-you-GEP'd-by is not null. It's magic! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136757 91177308-0d34-0410-b5e6-96231b3b80d8
* Add this back in for now. There are still a few passes which create unwind ↵Bill Wendling2011-08-031-1/+1
| | | | | | instructions at the moment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136756 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix logical error when detecting lifetime intrinsics.Nick Lewycky2011-08-031-33/+34
| | | | | | | | | | Don't replace a gep/bitcast with 'undef' because that will form a "free(undef)" which in turn means "unreachable". What we wanted was a no-op. Instead, analyze the whole tree and look for all the instructions we need to delete first, then delete them second, not relying on the use_list to stay consistent. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136752 91177308-0d34-0410-b5e6-96231b3b80d8
* Replace the 'UnwindInst' check with a check for 'ResumeInst', which also exitsBill Wendling2011-08-031-1/+1
| | | | | | | the function, because the UnwindInst is going away. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136751 91177308-0d34-0410-b5e6-96231b3b80d8
* Use the precomputed def presence in RAGreedy::calcSpillCost.Jakob Stoklund Olesen2011-08-021-11/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136742 91177308-0d34-0410-b5e6-96231b3b80d8
* Inform SpillPlacement about blocks with defs.Jakob Stoklund Olesen2011-08-021-0/+1
| | | | | | This information is not used for anything yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136741 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename {First,Last}Use to {First,Last}Instr.Jakob Stoklund Olesen2011-08-023-43/+45
| | | | | | | With a 'FirstDef' field right there, it is very confusing that FirstUse refers to an instruction that may be a def. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136739 91177308-0d34-0410-b5e6-96231b3b80d8
* ARM backend support for atomicrmw and cmpxchg with non-monotonic ordering. ↵Eli Friedman2011-08-021-47/+77
| | | | | | Not especially pretty, but seems to work well enough. If this looks okay, I'll put together similar patches for Mips, PPC, and Alpha. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136737 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a BlockInfo::FirstDef field.Jakob Stoklund Olesen2011-08-022-1/+15
| | | | | | | | | | | This is either an invalid SlotIndex, or valno->def for the first value defined inside the block. PHI values are not counted as defined inside the block. The FirstDef field will be used when estimating the cost of spilling around a block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136736 91177308-0d34-0410-b5e6-96231b3b80d8
* Delete BlockInfo::LiveThrough. It wasn't used any more.Jakob Stoklund Olesen2011-08-022-4/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136735 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach InstCombine that lifetime intrincs aren't a real user on the result of aNick Lewycky2011-08-021-11/+35
| | | | | | | malloc call. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136732 91177308-0d34-0410-b5e6-96231b3b80d8
* Extend the SpillPlacement interface with two new features.Jakob Stoklund Olesen2011-08-022-1/+11
| | | | | | | | | | | | | | | | | | | | | | | | The PrefBoth constraint is used for blocks that ideally want a live-in value both on the stack and in a register. This would be used by a block that has a use before interference forces a spill. Secondly, add the ChangesValue flag to BlockConstraint. This tells SpillPlacement if a live-in value on the stack can be reused as a live-out stack value for free. If the block redefines the virtual register, a spill would be required for that. This extra information will be used by SpillPlacement to more accurately calculate spill costs when a value can exist both on the stack and in a register. The simplest example is a basic block that reads the virtual register, but doesn't change its value. Spilling around such a block requires a reload, but no spill in the block. The spiller already knows this, but the spill placer doesn't. That can sometimes lead to suboptimal regions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136731 91177308-0d34-0410-b5e6-96231b3b80d8
* Move methods in PassManagerBuilder offline.Rafael Espindola2011-08-022-0/+249
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136727 91177308-0d34-0410-b5e6-96231b3b80d8
* Add new atomic instructions to SCCP. No functional change, but stops debug ↵Eli Friedman2011-08-021-0/+2
| | | | | | spam. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136723 91177308-0d34-0410-b5e6-96231b3b80d8
* Lifetime intrinsics on undef are dead.Nick Lewycky2011-08-021-3/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136722 91177308-0d34-0410-b5e6-96231b3b80d8
* Assume .cfi_startproc is the first thing in a function. If the function isRafael Espindola2011-08-021-7/+14
| | | | | | | | | externally visable, create a local symbol to use in the CFE. If not, use the function label itself. Fixes PR10420. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136716 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't create a ridiculous EXTRACT_ELEMENT. PR10563.Eli Friedman2011-08-022-3/+2
| | | | | | | | The testcase looks extremely fragile, so I'm adding an assertion which should catch any cases like this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136711 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the broken encodings for the VFP vmov.f32 and vmov.f64 instructions, as ↵Owen Anderson2011-08-021-6/+8
| | | | | | well as the comments that explain them incorrectly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136707 91177308-0d34-0410-b5e6-96231b3b80d8
* Tidy up. 80 columns.Jim Grosbach2011-08-021-8/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136705 91177308-0d34-0410-b5e6-96231b3b80d8
* ARM: rename addrmode7 to addr_offset_none.Jim Grosbach2011-08-021-14/+15
| | | | | | | Use a more descriptive name so the code is more self-documenting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136704 91177308-0d34-0410-b5e6-96231b3b80d8
* Comment out the PPC relocation offset adjustment. It must be done differently.Roman Divacky2011-08-021-0/+4
| | | | | | | This unbreaks some tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136692 91177308-0d34-0410-b5e6-96231b3b80d8
* Make this kind of lowering to be supported by 256-bit instructions:Bruno Cardoso Lopes2011-08-021-14/+24
| | | | | | | | | shuffle (scalar_to_vector (load (ptr + 4))), undef, <0, 0, 0, 0> To: shuffle (vload ptr)), undef, <1, 1, 1, 1> Fix PR10494 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136691 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove trailing semicolon.Roman Divacky2011-08-021-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136690 91177308-0d34-0410-b5e6-96231b3b80d8
* Sketch out PowerPC ELF writer. This is enough to get clang -integrated-asRoman Divacky2011-08-024-2/+156
| | | | | | | | to compile a working hello world on FreeBSD/PPC32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136689 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the LLVMBuildUnwind C API function.Bill Wendling2011-08-021-4/+0
| | | | | | | | The 'unwind' function is going away with the new EH rewrite. This is step 0 in keeping front-ends from using it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136683 91177308-0d34-0410-b5e6-96231b3b80d8
* Use consistent terminology for loop exit/exiting blocks. Name change only.Andrew Trick2011-08-021-9/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136677 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r136503 and r136480 in an effort to fix non-determinism in the ↵Owen Anderson2011-08-021-22/+1
| | | | | | llvm-gcc buildbots on i386. Devang is looking into the root cause. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136674 91177308-0d34-0410-b5e6-96231b3b80d8
* Bail from FastISel when we encounter a volatile memset intrinsic. Patch by IvanNick Lewycky2011-08-021-0/+3
| | | | | | | Krasin! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136663 91177308-0d34-0410-b5e6-96231b3b80d8
* Move imm0_255 to ARMInstrInfo.td with the other immediate predicates.Jim Grosbach2011-08-012-4/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136656 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix comments.Jim Grosbach2011-08-011-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136655 91177308-0d34-0410-b5e6-96231b3b80d8
* Add v4f64 -> v2f32 fp_round support. Also add a testcase to exerciseBruno Cardoso Lopes2011-08-012-0/+7
| | | | | | | the legalizer. This commit together with the two previous ones fixes PR10495. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136654 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach PreprocessISelDAG to be aware of vector types and to not process them.Bruno Cardoso Lopes2011-08-013-6/+11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136653 91177308-0d34-0410-b5e6-96231b3b80d8
* Lower CONCAT_VECTORS to use two VINSERTF128 instructions instead ofBruno Cardoso Lopes2011-08-011-5/+48
| | | | | | using a stack store. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136652 91177308-0d34-0410-b5e6-96231b3b80d8
* Actually finish switching to the new system for Target sublibraryChandler Carruth2011-08-019-9/+9
| | | | | | | | | | | TableGen deps introduced in r136023. This completes the fixing that dgregor started in r136621. Sorry for missing these the first time around. This should fix some of the random race-condition failures people are still seeing with CMake. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136643 91177308-0d34-0410-b5e6-96231b3b80d8
* Since vectors with all ones can't be created with a 256-bit instruction,Bruno Cardoso Lopes2011-08-011-11/+13
| | | | | | | | avoid returning early for v8i32 types, which would only be valid for vector with all zeros. Also split the handling of zeros and ones into separate checking logic since they are handled differently. This fixes PR10547 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136642 91177308-0d34-0410-b5e6-96231b3b80d8
* Set endianess and pointer size for PPC Linux. Bug noticed by Roman Divacky.Evan Cheng2011-08-011-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136639 91177308-0d34-0410-b5e6-96231b3b80d8
* Change SmallVector to SmallPtrSet in BranchProbabilityInfo. Handle cases whereJakub Staszak2011-08-011-15/+15
| | | | | | | one than one successor goes to the same block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136638 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix crash with varargs function with no named parameters.Richard Osborne2011-08-011-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136623 91177308-0d34-0410-b5e6-96231b3b80d8
* Update CMake target names for tablegen-generated data in the X86 and ARM ↵Douglas Gregor2011-08-013-3/+3
| | | | | | targets. This should fix the CMake build with MSVC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136621 91177308-0d34-0410-b5e6-96231b3b80d8
* Add braces.Jay Foad2011-08-011-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136612 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify printAlias.Jay Foad2011-08-011-21/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136611 91177308-0d34-0410-b5e6-96231b3b80d8
* Micro-optimisation in getAliasedGlobal.Jay Foad2011-08-011-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136610 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove an unnecessary cast.Jay Foad2011-08-011-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136609 91177308-0d34-0410-b5e6-96231b3b80d8
* I mis-interpreted the MCDisassembler's intended dependencies. Now to fixChandler Carruth2011-07-311-2/+9
| | | | | | | | | | | | | them properly. Specifically, the disassembler clearly attempts to initialiaze all TargetInfo, MCTargeDesc, AsmParser, and Disassembler sublibraries of registered targets. This makes the CMakeLists accurately reflect this intent in the code. This should fix the last of the link errors that I have gotten reports of on OS X, but if anyone continues to see link errors, continue to pester me and I'll look into it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136603 91177308-0d34-0410-b5e6-96231b3b80d8
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