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* Add more constantness in BlockFrequencyInfo.Jakub Staszak2011-08-034-4/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136816 91177308-0d34-0410-b5e6-96231b3b80d8
* Kill the export list as well.Evan Cheng2011-08-031-36/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136814 91177308-0d34-0410-b5e6-96231b3b80d8
* New approach to r136737: insert the necessary fences for atomic ops in ↵Eli Friedman2011-08-037-86/+94
| | | | | | | | | | platform-independent code, since a bunch of platforms (ARM, Mips, PPC, Alpha are the relevant targets here) need to do essentially the same thing. I think this completes the basic CodeGen for atomicrmw and cmpxchg. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136813 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove CreateUnwind from the IRBuillder.Bill Wendling2011-08-031-4/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136811 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unused variables.Benjamin Kramer2011-08-032-2/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136803 91177308-0d34-0410-b5e6-96231b3b80d8
* 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
* Go back to the old definition. It's not clear that a 'resume' can be ↵Bill Wendling2011-08-031-2/+2
| | | | | | 'outlined' from the function with the landing pad for all platforms. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136799 91177308-0d34-0410-b5e6-96231b3b80d8
* SCEV: Use AssertingVH to catch dangling BasicBlock* when passes forgetAndrew Trick2011-08-034-3/+106
| | | | | | | 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
* Explain how clauses are applied.Bill Wendling2011-08-031-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136790 91177308-0d34-0410-b5e6-96231b3b80d8
* Handle IMPLICIT_DEF instructions in X86FloatingPoint.Jakob Stoklund Olesen2011-08-032-1/+33
| | | | | | This fixes PR10575. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136787 91177308-0d34-0410-b5e6-96231b3b80d8
* Use cast<> instead of a C-style cast to get some free assertions.Jay Foad2011-08-031-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136771 91177308-0d34-0410-b5e6-96231b3b80d8
* fix PR10286, a problem with the .ll printer handling block addresses that ↵Chris Lattner2011-08-032-11/+43
| | | | | | 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 Patel2011-08-032-3/+145
| | | | 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 Lewycky2011-08-032-33/+45
| | | | | | | | | | 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
* lldb doesn't need the edis dylib any more.Evan Cheng2011-08-021-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136738 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 Lewycky2011-08-022-12/+48
| | | | | | | 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
* Add the documentation for the 'landingpad' instruction. Improve the 'invoke'Bill Wendling2011-08-021-4/+90
| | | | | | | instruction's documentation to reference the landingpad and resume instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136729 91177308-0d34-0410-b5e6-96231b3b80d8
* Move methods in PassManagerBuilder offline.Rafael Espindola2011-08-026-236/+281
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136727 91177308-0d34-0410-b5e6-96231b3b80d8
* move PassManagerBuilder.h to IPO. This is a non intuitive place to put it,Rafael Espindola2011-08-025-5/+5
| | | | | | | but it solves a layering violation since things in Support are not supposed to use things in Transforms. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136726 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 Lewycky2011-08-022-4/+19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136722 91177308-0d34-0410-b5e6-96231b3b80d8
* Update the default bug report url in autoconf.Chad Rosier2011-08-021-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136721 91177308-0d34-0410-b5e6-96231b3b80d8
* no need to count the terminators.Chris Lattner2011-08-021-9/+9
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* Assume .cfi_startproc is the first thing in a function. If the function isRafael Espindola2011-08-023-8/+36
| | | | | | | | | 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
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* ARM: rename addrmode7 to addr_offset_none.Jim Grosbach2011-08-022-15/+16
| | | | | | | 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 Lopes2011-08-022-14/+56
| | | | | | | | | 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 Divacky2011-08-025-2/+173
| | | | | | | | 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
* Duncan's english is better than mine. :-)Bill Wendling2011-08-021-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136684 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the LLVMBuildUnwind C API function.Bill Wendling2011-08-023-8/+7
| | | | | | | | 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 Trick2011-08-022-16/+16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136677 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove empty test.Benjamin Kramer2011-08-021-0/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136675 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r136503 and r136480 in an effort to fix non-determinism in the ↵Owen Anderson2011-08-022-60/+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
* I am the code owner for Clang's IR generation; this has been trueJohn McCall2011-08-022-0/+6
| | | | | | | | | | | | for awhile, but it's good to make this official. Just to be clear, Doug and Ted "elected" me to this position. Might as well add myself to the credits list while I'm at it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136673 91177308-0d34-0410-b5e6-96231b3b80d8
* Minor wording tweak for memory model.Eli Friedman2011-08-021-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136668 91177308-0d34-0410-b5e6-96231b3b80d8
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