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2006-10-14Tidy up after truncstore changes.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30961 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-14Debug tweak.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30959 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-14Make sure that the node returned by SimplifySetCC is added to the worklistChris Lattner
so that it can be deleted if unused. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30955 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-14fold setcc of a setcc.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30953 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-14When SimplifySetCC was moved to the DAGCombiner, it was never removed fromChris Lattner
SelectionDAG and it has since bitrotted. Remove the copy from SelectionDAG. Next, remove the constant folding piece of DAGCombiner::SimplifySetCC into a new FoldSetCC method which can be used by getNode() and SimplifySetCC. This fixes obscure bugs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30952 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-14disable this pass for now, it's causing issuesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30951 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-14falling off the end of a function is ok with an unreachable instruction.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30950 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13Reduce the workload by not adding chain users to work list.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30948 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13Fix a bug where we incorrectly turned '(X & 0) == 0' into '(X & 0) >> -1',Chris Lattner
which is undefined. "0" isn't a power of 2. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30947 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13Merge ISD::TRUNCSTORE to ISD::STORE. Switch to using StoreSDNode.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30945 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13add the branch folding pass as a late cleanup pass for all targets. For nowChris Lattner
it just deletes empty MBB's. Soon it will do more :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30941 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13disable some objectionable code, maybe we can bring this pass to lifeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30939 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13Workaround for templatesJim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30927 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13Clean up dump.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30926 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12Lower X%C into X/C+stuff. This allows the 'division by a constant' logic toChris Lattner
apply to rems as well as divs. This fixes PR945 and speeds up ReedSolomon from 14.57s to 10.90s (which is now faster than gcc). It compiles CodeGen/X86/rem.ll into: _test1: subl $4, %esp movl %esi, (%esp) movl $2155905153, %ecx movl 8(%esp), %esi movl %esi, %eax imull %ecx addl %esi, %edx movl %edx, %eax shrl $31, %eax sarl $7, %edx addl %eax, %edx imull $255, %edx, %eax subl %eax, %esi movl %esi, %eax movl (%esp), %esi addl $4, %esp ret _test2: movl 4(%esp), %eax movl %eax, %ecx sarl $31, %ecx shrl $24, %ecx addl %eax, %ecx andl $4294967040, %ecx subl %ecx, %eax ret _test3: subl $4, %esp movl %esi, (%esp) movl $2155905153, %ecx movl 8(%esp), %esi movl %esi, %eax mull %ecx shrl $7, %edx imull $255, %edx, %eax subl %eax, %esi movl %esi, %eax movl (%esp), %esi addl $4, %esp ret instead of div/idiv instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30920 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12Add RemoveDeadNode to remove a dead node and its (potentially) dead operands.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30916 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12add a minor dag combine noticed when looking at PR945Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30915 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12restore my previous patch, now that the X86 backend bug has been fixed:Chris Lattner
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20061009/038518.html git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30906 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12D'oh - need to use the rigth kind of store.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30903 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12Backing out Chris' last commit. It's breaking llvm-gcc bootstrapping.Evan Cheng
It's turning: movl -24(%ebp), %esp subl $16, %esp movl -24(%ebp), %ecx into movl -24(%ebp), %esp subl $16, %esp movl %esp, (%esp) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30902 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12If we see a load from a stack slot into a physreg, consider it as providingChris Lattner
the stack slot. This fixes PR943. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30898 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11Alias analysis of TRUNCSTORE.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30889 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11TypoJim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30884 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11Handle aliasing of loadext.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30883 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11Fix regression in combiner alias analysis.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30880 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11Naming consistency.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30878 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11Jimptables working again on alpha.Andrew Lenharth
As a bonus, use the GOT node instead of the AlphaISD::GOT for internal stuff. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30873 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11add two helper methods.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30869 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11FindModifiedNodeSlot needs to add LoadSDNode ivars to create proper ↵Evan Cheng
SelectionDAGCSEMap ID. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30866 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10Also update getNodeLabel for LoadSDNode.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30861 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10SDNode::dump should also print out extension type and VT.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30860 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10Fix another bug in extload promotion.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30857 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10Fix a bug introduced by my LOAD/LOADX changes.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30853 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09Reflects ISD::LOAD / ISD::LOADX / LoadSDNode changes.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30844 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-08Eliminate more token factors by taking advantage of transitivity:Chris Lattner
if TF depends on A and B, and A depends on B, TF just needs to depend on A. With Jim's alias-analysis stuff enabled, this compiles the testcase in PR892 into: __Z4test3Val: subl $44, %esp call L__Z3foov$stub movl %edx, 28(%esp) movl %eax, 32(%esp) movl %eax, 24(%esp) movl %edx, 36(%esp) movl 52(%esp), %ecx movl %ecx, 4(%esp) movl %eax, 8(%esp) movl %edx, 12(%esp) movl 48(%esp), %eax movl %eax, (%esp) call L__Z3bar3ValS_$stub addl $44, %esp ret instead of: __Z4test3Val: subl $44, %esp call L__Z3foov$stub movl %eax, 24(%esp) movl %edx, 28(%esp) movl 24(%esp), %eax movl %eax, 32(%esp) movl 28(%esp), %eax movl %eax, 36(%esp) movl 32(%esp), %eax movl 36(%esp), %ecx movl 52(%esp), %edx movl %edx, 4(%esp) movl %eax, 8(%esp) movl %ecx, 12(%esp) movl 48(%esp), %eax movl %eax, (%esp) call L__Z3bar3ValS_$stub addl $44, %esp ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30821 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-07Combiner alias analysis passes Multisource (release-asserts.)Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30818 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-07Fix a bug legalizing zero-extending i64 loads into 32-bit loads. The bottomChris Lattner
part was always forced to be sextload, even when we needed an zextload. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30782 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-06initialize ivarChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30780 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-06If a target uses a GOT, put it in the jt data section, not the textChris Lattner
section. This will fix alpha when Andrew implements AlphaTargetMachine::getTargetLowering(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30779 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-06jump tables handle picChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30776 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-06print labels even if a MBB doesn't have a corresponding LLVM BB, just don'tChris Lattner
print the LLVM BB label. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30775 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-06Fix a miscompilation of:Chris Lattner
long long foo(long long X) { return (long long)(signed char)(int)X; } Instead of: _foo: extsb r2, r4 srawi r3, r4, 31 mr r4, r2 blr we now produce: _foo: extsb r4, r4 srawi r3, r4, 31 blr This fixes a miscompilation in ConstantFolding.cpp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30768 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-06MachineBasicBlock::splice was incorrectly updating parent pointers onChris Lattner
instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30760 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-05Make use of getStore().Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30759 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-05Add getStore() helper function to create ISD::STORE nodes.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30758 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-05Don't crash if an MBB doesn't have an LLVM BBChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30757 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-05Alias analysis code clean ups.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30753 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-05Emit pic jumptables to the same section that the function is emitted to,Chris Lattner
allowing label differences to work. This fixes CodeGen/X86/pic_jumptable.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30744 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-05Pass the MachineFunction into EmitJumpTableInfo.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30742 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-05move getSectionForFunction to AsmPrinterChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30736 91177308-0d34-0410-b5e6-96231b3b80d8
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