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* Somehow, custom lowering of i64 multiplications got dropped along the way.Scott Michel2008-07-161-104/+105
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53689 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the result type of X86's truncate to i8.Dan Gohman2008-07-161-5/+3
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* Fix the result type of a VECTOR_SHUFFLE+BIT_CONVERT dagcombine. ThisDan Gohman2008-07-161-3/+2
| | | | | | | | was turned up by some new SelectionDAG assertion checks that I'm working on. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53687 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the name of BreakCriticalMachineEdge.h's include guardDan Gohman2008-07-161-2/+2
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* Correct a top-level comment.Dan Gohman2008-07-161-1/+1
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* Add support for promoting and expanding AssertZextDuncan Sands2008-07-164-0/+3116
| | | | | | | | and AssertSext. Needed when passing huge integer parameters with the zeroext or signext attributes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53684 91177308-0d34-0410-b5e6-96231b3b80d8
* Clarify the comments here, to make slightly more clear theDan Gohman2008-07-161-2/+2
| | | | | | | | difference in purpose of TargetInstrInfo and TargetInstrDesc, which isn't immediately obvious from the name. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53683 91177308-0d34-0410-b5e6-96231b3b80d8
* Tidy a doxygen comment.Dan Gohman2008-07-161-1/+1
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* Fix a comment to say nonnegative instead of positive.Dan Gohman2008-07-161-1/+1
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* Add an assert to check for empty flags for MachineMemOperand.Dan Gohman2008-07-161-0/+1
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* Test passing of integer parameters for integersDuncan Sands2008-07-161-0/+1537
| | | | | | | | | | | of all sizes from i1 to i256. The code is not always that great, for example (x86) movw %di, %ax movw %ax, i17_s where the store could be directly from %di. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53677 91177308-0d34-0410-b5e6-96231b3b80d8
* Test codegen of loads and stores of all integerDuncan Sands2008-07-161-0/+2049
| | | | | | | | | sizes from i1 to i256. The generated code is like one huge bug report of things that the DAG combiner fails to simplify! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53676 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a few cases to instcombine's extractvalue testcase.Matthijs Kooijman2008-07-161-2/+16
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* Un-XFAIL multdeadretval, since instcombine now properly handles the mess ↵Matthijs Kooijman2008-07-161-1/+0
| | | | | | deadargelim leaves behind :-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53674 91177308-0d34-0410-b5e6-96231b3b80d8
* Redo InstCombiner::visitExtractValueInst. Instead of using the (complicate)Matthijs Kooijman2008-07-161-5/+80
| | | | | | | | | FindInsertedValue, it now performs a number of simple transformations that should result in the same effect when applied iteratively. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53673 91177308-0d34-0410-b5e6-96231b3b80d8
* Reorder methods alphabetically. No functionality change.Duncan Sands2008-07-163-922/+913
| | | | | | | | | While this is not a wonderful organizing principle, it does make it easy to find routines, and clear where to insert new ones. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53672 91177308-0d34-0410-b5e6-96231b3b80d8
* Turn on LegalizeTypes by default.Duncan Sands2008-07-162-6/+6
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* Don't use ++idx_begin when I actually mean idx_begin + 1, especially since weMatthijs Kooijman2008-07-161-1/+1
| | | | | | | | | | also use *idx_begin in the same expression, giving unpredictable results. This fixes this bug: http://lists.cs.uiuc.edu/pipermail/llvmdev/2008-July/015877.html git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53670 91177308-0d34-0410-b5e6-96231b3b80d8
* The atomic.cmp.swap promotion logic is wrong: itDuncan Sands2008-07-161-8/+2
| | | | | | | | | | | | | | | | | simply does the atomic.cmp.swap on the larger type, which means it blows away whatever is sitting in the bytes just after the memory location, i.e. causes a buffer overflow. This really requires target specific code, which is why LegalizeTypes doesn't try to handle this case generically. The existing (wrong) code in LegalizeDAG will go away automatically once the type legalization code is removed from LegalizeDAG so I'm leaving it there for the moment. Meanwhile, don't test for this feature. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53669 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR2296. Do not transform x86_sse2_storel_dq into a full-width store.Evan Cheng2008-07-162-1/+13
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* x86-64 PIC JIT fixes: do not generate the extra load for external GV's.Evan Cheng2008-07-162-8/+5
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* X86-64 PIC jump table values are different from x86-32 cases, they are dest ↵Evan Cheng2008-07-161-0/+4
| | | | | | - table base. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53660 91177308-0d34-0410-b5e6-96231b3b80d8
* TargetAsmInfo::SectionForGlobal showed up in a profile. Simplify it a little.Dan Gohman2008-07-151-5/+3
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* SelectionDAG::AssignNodeIds is unused.Dan Gohman2008-07-152-15/+0
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* Don't sort SDNodes by their addresses in SelectionDAG::dump. Instead,Dan Gohman2008-07-151-9/+5
| | | | | | | | just use the AllNodes order, which is at least relatively stable across runs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53632 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert this, as it seems to still be broken.Owen Anderson2008-07-151-1/+1
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* Enable local PRE by default.Owen Anderson2008-07-151-1/+1
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* Have GVN do a pre-pass over the CFG that folds away unconditional branches ↵Owen Anderson2008-07-151-2/+63
| | | | | | where possible. This allows local PRE to be more aggressive. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53615 91177308-0d34-0410-b5e6-96231b3b80d8
* XFAIL the multdeadretval test for now, I will be fixing instcombine to make ↵Matthijs Kooijman2008-07-151-0/+1
| | | | | | it work again tomorrow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53614 91177308-0d34-0410-b5e6-96231b3b80d8
* LegalizeTypes support for fabs on ppc long double.Duncan Sands2008-07-153-0/+34
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* Remove a few tests which no longer hold for deadargelim (since it is nowMatthijs Kooijman2008-07-151-15/+7
| | | | | | | | | allowed to canonicalize return values). Add a test that checks if return value and function attributes are not removed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53612 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a testcase for the canonicalizations now performed by deadargelim.Matthijs Kooijman2008-07-151-0/+24
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* Allow deadargelim to change return types even though now values were dead. ThisMatthijs Kooijman2008-07-151-11/+1
| | | | | | | again canonicalizes {i32} into i32 and {} into void. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53610 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r53606. It turns out that explicitely tracking the liveness of theMatthijs Kooijman2008-07-151-97/+103
| | | | | | | | | | | | return value as a whole in deadargelim is really not needed now that we simply rebuild the old return value and actually prevents some canonicalization from taking place. This revert stops deadargelim from changing {i32} into i32 for now, but I'll fix that next. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53609 91177308-0d34-0410-b5e6-96231b3b80d8
* Make deadargelim a bit less smart, so it doesn't choke on nested structs asMatthijs Kooijman2008-07-152-39/+35
| | | | | | | | | | | | | return values that are still (partially) live. Instead of updating all uses of a call instruction after removing some elements, it now just rebuilds the original struct (With undef gaps where the unused values were) and leaves it to instcombine to clean this up. The added testcase still fails currently, but this is due to instcombine which isn't good enough yet. I will fix that part next. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53608 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't use isa when we can reuse a previous dyn_cast.Matthijs Kooijman2008-07-151-3/+2
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* Make DeadArgElim keep liveness of the return value as a whole in addition toMatthijs Kooijman2008-07-151-126/+124
| | | | | | | | | | | | only the liveness of partial return values (for functions returning a struct). This is more explicit to prevent unwanted changes in the return value. In particular, deadargelim now canonicalizes a function returning {i32} to returning i32 and {} to void, if the struct returned is not used in its entirety, but only the single element is used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53606 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typo.Matthijs Kooijman2008-07-151-1/+1
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* LegalizeTypes support for promotion of bswap.Duncan Sands2008-07-153-0/+398
| | | | | | | | | | | | | In LegalizeDAG the value is zero-extended to the new type before byte swapping. It doesn't matter how the extension is done since the new bits are shifted off anyway after the swap, so extend by any old rubbish bits. This results in the final assembler for the testcase being one line shorter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53604 91177308-0d34-0410-b5e6-96231b3b80d8
* LegalizeTypes support for promotion of SIGN_EXTEND_INREG.Duncan Sands2008-07-153-0/+26
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* Reorder the integer promotion methods alphabetically.Duncan Sands2008-07-151-365/+356
| | | | | | | No change in functionality. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53602 91177308-0d34-0410-b5e6-96231b3b80d8
* Let DAE keep a list of live functions, instead of simply marking all argumentsMatthijs Kooijman2008-07-151-6/+14
| | | | | | | | and return values live for those functions. This doesn't change anything yet, but prepares for the coming commits. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53601 91177308-0d34-0410-b5e6-96231b3b80d8
* Split DAE::MarkLive into MarkLive and PropagateLiveness.Matthijs Kooijman2008-07-151-0/+6
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* Pass around const RetOrArg references instead of copying values. Also, markMatthijs Kooijman2008-07-151-3/+3
| | | | | | | RetOrArg::getDescription() as const. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53599 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify debug code by using RetOrArg::getDescription().Matthijs Kooijman2008-07-151-6/+1
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* Fix indentation (intentionally left out of the previous commit).Matthijs Kooijman2008-07-151-51/+51
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* Move the deadargelim code for intrinsically alive functions into its ownMatthijs Kooijman2008-07-151-23/+25
| | | | | | | method, to slightly simplify control flow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53591 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed potential bug if the source and target of a bit convert have different ↵Mon P Wang2008-07-151-1/+3
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* Correct this inversion!Nick Lewycky2008-07-151-1/+1
| | | | | | | I swear that didn't show up in svn diff... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53587 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix up comments.Nick Lewycky2008-07-151-5/+7
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