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* When adding the carry bit to another value on X86, exploit the fact that the ↵Owen Anderson2010-09-211-0/+23
| | | | | | | | | | | | carry-materialization (sbbl x, x) sets the registers to 0 or ~0. Combined with two's complement arithmetic, we can fold the intermediate AND and the ADD into a single SUB. This fixes <rdar://problem/8449754>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114460 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't pollute the global namespace.Jakob Stoklund Olesen2010-09-211-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114459 91177308-0d34-0410-b5e6-96231b3b80d8
* MSVC9 does not support upper_bound with an asymmetric comparator.Jakob Stoklund Olesen2010-09-211-6/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114455 91177308-0d34-0410-b5e6-96231b3b80d8
* Define the TargetLowering::getTgtMemIntrinsic hook for ARM so that NEON loadBob Wilson2010-09-213-1/+66
| | | | | | | and store intrinsics are represented with MemIntrinsicSDNodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114454 91177308-0d34-0410-b5e6-96231b3b80d8
* eliminate some uses of the getStore overload.Chris Lattner2010-09-213-41/+60
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114453 91177308-0d34-0410-b5e6-96231b3b80d8
* eliminate an old SelectionDAG::getTruncStore method, propagatingChris Lattner2010-09-218-93/+77
| | | | | | | MachinePointerInfo around more. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114452 91177308-0d34-0410-b5e6-96231b3b80d8
* eliminate last SelectionDAG::getLoad old entrypoint, on to stores.Chris Lattner2010-09-213-22/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114450 91177308-0d34-0410-b5e6-96231b3b80d8
* fix the code that infers SV info to be correct when dealingChris Lattner2010-09-211-28/+53
| | | | | | | with an indexed load/store that has an offset in the index. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114449 91177308-0d34-0410-b5e6-96231b3b80d8
* Add LiveInterval::find and use it for most LiveRange searching operationsJakob Stoklund Olesen2010-09-211-68/+8
| | | | | | | | | | | | instead of calling lower_bound or upper_bound directly. This cleans up the search logic a bit because {lower,upper}_bound compare LR->start by default, and it is usually simpler to search LR->end. Funnelling all searches through one function also makes it possible to replace the search algorithm with something faster than binary search. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114448 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove dead method.Jakob Stoklund Olesen2010-09-211-21/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114447 91177308-0d34-0410-b5e6-96231b3b80d8
* propagate MachinePointerInfo through various uses of the oldChris Lattner2010-09-2111-297/+283
| | | | | | | SelectionDAG::getExtLoad overload, and eliminate it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114446 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix errant printing of [v]ldm instructions that aren't a popJim Grosbach2010-09-211-32/+24
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114445 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify code.Benjamin Kramer2010-09-211-8/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114444 91177308-0d34-0410-b5e6-96231b3b80d8
* continue MachinePointerInfo'izing, eliminating use of one of the oldChris Lattner2010-09-218-192/+192
| | | | | | | getLoad overloads. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114443 91177308-0d34-0410-b5e6-96231b3b80d8
* convert dagcombine off the old form of getLoad. This fixes several bugs Chris Lattner2010-09-211-16/+18
| | | | | | | with SVOffset computation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114442 91177308-0d34-0410-b5e6-96231b3b80d8
* Make CreateComplexVariable independent of SmallVector.Benjamin Kramer2010-09-211-7/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114439 91177308-0d34-0410-b5e6-96231b3b80d8
* simplify DAGCombiner::SimplifySelectOps step #2/2.Chris Lattner2010-09-211-55/+53
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114437 91177308-0d34-0410-b5e6-96231b3b80d8
* substantially reduce indentation and simplify DAGCombiner::SimplifySelectOps.Chris Lattner2010-09-211-85/+76
| | | | | | | no functionality change (step #1) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114436 91177308-0d34-0410-b5e6-96231b3b80d8
* llvmc: Allow multiple output languages.Mikhail Glushenkov2010-09-211-23/+35
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114433 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed ambiguous call.Lang Hames2010-09-211-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114431 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix buglet when the TST instruction directly uses the AND result.Gabor Greif2010-09-211-5/+6
| | | | | | | I am unable to write a test for this case, help is solicited, though... What I did is to tickle the code in the debugger and verify that we do the right thing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114430 91177308-0d34-0410-b5e6-96231b3b80d8
* Added an additional PBQP problem builder which adds coalescing costs (both ↵Lang Hames2010-09-211-14/+127
| | | | | | between pairs of virtuals, and between virtuals and physicals). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114429 91177308-0d34-0410-b5e6-96231b3b80d8
* Move the search for the appropriate AND instructionGabor Greif2010-09-213-23/+47
| | | | | | | | | | | into OptimizeCompareInstr. This necessitates the passing of CmpValue around, so widen the virtual functions to accomodate. No functionality changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114428 91177308-0d34-0410-b5e6-96231b3b80d8
* a few more trivial updates. This fixes PerformInsertVectorEltInMemory to notChris Lattner2010-09-212-15/+13
| | | | | | | | pass a completely incorrect SrcValue, which would result in a miscompile with combiner-aa. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114411 91177308-0d34-0410-b5e6-96231b3b80d8
* convert the targets off the non-MachinePointerInfo of getLoad.Chris Lattner2010-09-2111-102/+116
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114410 91177308-0d34-0410-b5e6-96231b3b80d8
* add some accessorsChris Lattner2010-09-211-0/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114409 91177308-0d34-0410-b5e6-96231b3b80d8
* it's more elegant to put the "getConstantPool" andChris Lattner2010-09-215-29/+40
| | | | | | | | | "getFixedStack" on the MachinePointerInfo class. While this isn't the problem I'm setting out to solve, it is the right way to eliminate PseudoSourceValue, so lets go with it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114406 91177308-0d34-0410-b5e6-96231b3b80d8
* update the X86 backend to use the MachinePointerInfo version of oneChris Lattner2010-09-211-38/+44
| | | | | | | | of the getLoad methods. This fixes at least one bug where an incorrect svoffset is passed in (a potential combiner-aa miscompile). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114404 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bug where the x86 backend would lower memcpy/memset of segment ↵Chris Lattner2010-09-211-0/+9
| | | | | | | | | relative operations into non-segment-relative copies. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114402 91177308-0d34-0410-b5e6-96231b3b80d8
* reimplement memcpy/memmove/memset lowering to use MachinePointerInfoChris Lattner2010-09-2110-66/+85
| | | | | | | | instead of srcvalue/offset pairs. This corrects SV info for mem operations whose size is > 32-bits. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114401 91177308-0d34-0410-b5e6-96231b3b80d8
* add some helpful accessors.Chris Lattner2010-09-211-0/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114400 91177308-0d34-0410-b5e6-96231b3b80d8
* add overloads for SelectionDAG::getLoad, getStore, getTruncStore that take aChris Lattner2010-09-211-18/+47
| | | | | | | | MachinePointerInfo. Among other virtues, this doesn't silently truncate the svoffset to 32-bits. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114399 91177308-0d34-0410-b5e6-96231b3b80d8
* simplify interface to SelectionDAG::getMemIntrinsicNode, making it take a ↵Chris Lattner2010-09-212-6/+6
| | | | | | MachinePointerInfo git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114397 91177308-0d34-0410-b5e6-96231b3b80d8
* chagne interface to SelectionDAG::getAtomic to take a MachinePointerInfo,Chris Lattner2010-09-212-12/+4
| | | | | | | eliminating some weird "infer a frame address" logic which was dead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114396 91177308-0d34-0410-b5e6-96231b3b80d8
* don't implicitly drop the offset of a machinememoperand when legalizing atomics.Chris Lattner2010-09-211-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114395 91177308-0d34-0410-b5e6-96231b3b80d8
* force clients of MachineFunction::getMachineMemOperand to provide aChris Lattner2010-09-213-24/+15
| | | | | | | | MachinePointerInfo, propagating the type out a level of API. Remove the old MachineFunction::getMachineMemOperand impl. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114393 91177308-0d34-0410-b5e6-96231b3b80d8
* convert targets to the new MF.getMachineMemOperand interface.Chris Lattner2010-09-219-30/+42
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114391 91177308-0d34-0410-b5e6-96231b3b80d8
* start pushing MachinePointerInfo out through the MachineMemOperand interfaceChris Lattner2010-09-212-9/+16
| | | | | | | to the MachineFunction construction methods. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114390 91177308-0d34-0410-b5e6-96231b3b80d8
* refactor the Value*/offset pair from MachineMemOperand out to a newChris Lattner2010-09-211-5/+5
| | | | | | | | | | MachinePointerInfo struct, no functionality change. This also adds an assert to MachineMemOperand::MachineMemOperand that verifies that the Value* is either null or is an IR pointer type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114389 91177308-0d34-0410-b5e6-96231b3b80d8
* fix rdar://8453210, a crash handling a call through a GS relative load.Chris Lattner2010-09-211-1/+7
| | | | | | | For now, just disable folding the load into the call. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114386 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert unrelated change that was accidentally included in the previous commit.Rafael Espindola2010-09-211-4/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114383 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement support for .local and its "interesting" interactions with .comm.Rafael Espindola2010-09-213-11/+36
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114382 91177308-0d34-0410-b5e6-96231b3b80d8
* Enable machine sinking critical edge splitting. e.g.Evan Cheng2010-09-201-7/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | define double @foo(double %x, double %y, i1 %c) nounwind { %a = fdiv double %x, 3.2 %z = select i1 %c, double %a, double %y ret double %z } Was: _foo: divsd LCPI0_0(%rip), %xmm0 testb $1, %dil jne LBB0_2 movaps %xmm1, %xmm0 LBB0_2: ret Now: _foo: testb $1, %dil je LBB0_2 divsd LCPI0_0(%rip), %xmm0 ret LBB0_2: movaps %xmm1, %xmm0 ret This avoids the divsd when early exit is taken. rdar://8454886 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114372 91177308-0d34-0410-b5e6-96231b3b80d8
* When TCO is turned on, it is possible to end up with aliasing FrameIndex's. ↵Owen Anderson2010-09-201-2/+13
| | | | | | | | | | | | | Therefore, CombinerAA cannot assume that different FrameIndex's never alias, but can instead use MachineFrameInfo to get the actual offsets of these slots and check for actual aliasing. This fixes CodeGen/X86/2010-02-19-TailCallRetAddrBug.ll and CodeGen/X86/tailcallstack64.ll when CombinerAA is enabled, modulo a different register allocation sequence. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114348 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify ARM callee-saved register handling by removing the distinctionJim Grosbach2010-09-203-167/+59
| | | | | | | | | | | | | | | | | | | | | between the high and low registers for prologue/epilogue code. This was a Darwin-only thing that wasn't providing a realistic benefit anymore. Combining the save areas simplifies the compiler code and results in better ARM/Thumb2 codegen. For example, previously we would generate code like: push {r4, r5, r6, r7, lr} add r7, sp, #12 stmdb sp!, {r8, r10, r11} With this change, we combine the register saves and generate: push {r4, r5, r6, r7, r8, r10, r11, lr} add r7, sp, #12 rdar://8445635 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114340 91177308-0d34-0410-b5e6-96231b3b80d8
* Produce a R_X86_64_32 when the value is >=0.Rafael Espindola2010-09-201-2/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114339 91177308-0d34-0410-b5e6-96231b3b80d8
* Avoid splitting critical edge twice for a set of PHI uses.Evan Cheng2010-09-201-17/+23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114338 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the "unable to rename temporary" lit test failing on Windows. rename is ↵Francois Pichet2010-09-201-4/+11
| | | | | | now copy + delete on Windows. Problem to be revisited for a permanent and clean solution. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114320 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r114312 while I sort out some issues.Owen Anderson2010-09-191-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114313 91177308-0d34-0410-b5e6-96231b3b80d8
* Tentatively enabled DAGCombiner Alias Analysis by default. As far as I know,Owen Anderson2010-09-191-1/+1
| | | | | | | | r114268 fixed the last of the blockers to enabling it. I will be monitoring for failures. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114312 91177308-0d34-0410-b5e6-96231b3b80d8
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