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2008-07-03Reconstruct dom info, if loop is unswitched.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53086 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-03LoopUnswitch does not preserve dominator info in all cases.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53085 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-03Reapply r52988, "Simplify addRegisterKilled and addRegisterDead." TheDan Gohman
254.gap failure was not due to this mod. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53068 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-03Use operator new instead of new char[].Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53066 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-03Avoid unnecessarily copying APInt objects.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53065 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-03Correct a comment.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53064 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-03Use std::replace instead of std::find and push_back.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53063 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-03Undo previous patch. It is not that simple to fix dom info here.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53062 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-03- Add LiveVariables::replaceKillInstruction. This does a subset of ↵Evan Cheng
instructionChanged. That is, it only update the VarInfo.kills if the new instruction is known to have the correct dead and kill markers. - CommuteInstruction copies kill / dead markers over to new instruction. So use replaceKillInstruction instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53061 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-03commuteInstruction should preserve dead markers.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53060 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-02Make LiveVariables even more optional, by making it optional in the call to ↵Owen Anderson
TargetInstrInfo::convertToThreeAddressInstruction Also, if LV isn't around, then TwoAddr doesn't need to be updating flags, since they won't have been set in the first place. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53058 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-02Replace a few uses of SelectionDAG::getTargetNode withDan Gohman
SelectionDAG::SelectNodeTo in the instruction selector. This updates existing nodes in place instead of creating new ones. Go back to selecting ISD::DBG_LABEL nodes into TargetInstrInfo::DBG_LABEL nodes instead of leaving them unselected, now that SelectNodeTo allows us to update them in place. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53057 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-02Preserve dom info while simplifing loop after the unswitch.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53052 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-02Revert r52988. It broke 254.gap on x86-64.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53050 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-02TwoAddressInstructionPass doesn't really require LiveVariables, it just ↵Owen Anderson
needs to update it if it's already around. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53049 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-02Use df_ext_iterator to capture the reachable set without allocating an extra ↵Owen Anderson
set. Also, move large sets and vectors out of instance variables and onto the stack, and give them more reasonable sizes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53044 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-02Avoid a redundant call.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53040 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-02Add support to ADCE for pruning unreachable blocks. This addresses the finalOwen Anderson
part of PR2509. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53038 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-02Add a new getMergeValues method that does not needDuncan Sands
to be passed the list of value types, and use this where appropriate. Inappropriate places are where the value type list is already known and may be long, in which case the existing method is more efficient. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53035 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-02Use DenseSet rather than SmallPtrSet for the alive set. Using SmallPtrSetOwen Anderson
with a huge "size" parameter is actually quite inefficient. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53034 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-02A better fix for PR2503 that doesn't pessimize GVN in the presence of ↵Owen Anderson
unreachable blocks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53032 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-02Fixed problem in EmitStackConvert where the source and target typeMon P Wang
have different alignment by creating a stack slot with the max alignment of source and target type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53031 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-02instead of aborting on shifts of i1, just implicitly fold them.Chris Lattner
The dag combiner can produce a shift of i1 when folding icmp i1's. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53030 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-02Fix typo compounded by a cut-and-pasto.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53012 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-02Let AnalyzeNewNode take care of calling ExpungeNode.Duncan Sands
This makes sure that all new nodes are expunged, not just those the top node of a new subtree. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53011 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-02- Use a faster priority comparison function if -fast.Evan Cheng
- Code clean up. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53010 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-02Add a new (simple) StringMap::clear method, patch by PratikChris Lattner
Solanki! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53008 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-02reuse vectors.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53007 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-02Fix comment.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53006 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-02Preserve loop data so that it is not fetched everytime it is needed.Devang Patel
Keep track of currentLoop. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53005 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-02Use the canonical form for getting an empty structure.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53003 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-02Sorry. I couldn't sleep at night knowing I put these ugly casts into the ↵Bill Wendling
source tree. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53001 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-01Add a version of AddString that takes a const char* so we can avoid extraneousOwen Anderson
conversions to std::string. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52995 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-01Darwin doesn't need exception handling information for the "move" info whenBill Wendling
debug information is being output, because it's leet! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52994 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-01Avoid creating expensive comment string if it's not going to be printed.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52992 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-01No need to use std::distance. We can just count the number of operandsOwen Anderson
much more cheaply. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52990 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-01Simplify addRegisterKilled and addRegisterDead.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52988 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-01- Update comments. Bill Wendling
- Don't use GlobalVariable::LinkageTypes when unsigned works. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52987 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-01Fix longstanding thinko: don't excludeDale Johannesen
predessors of exit blocks from tail merging consideration. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52985 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-01Disable dom info verifier by default.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52983 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-01Eliminate a compile time warning.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52982 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-01Add a version of AsmPrinter::EOL that takes a const char* so that we don't ↵Owen Anderson
have to do as many implicit std::string constructions. Unfortunately, this doesn't appear to translate to a real speedup in practice. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52981 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-01Remove warning about initialization order.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52980 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-01Fix typos in comments. Devang Patel
Thanks for the feedback! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52978 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-01Prune a few dependencies on MachineFunction.h.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52976 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-01Do run ComputeLiveOutVRegInfo with -fast.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52975 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-01Do not use computationally expensive scheduling heuristics with -fast.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52971 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-01Apply Chris' suggestion.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52970 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-01Add dom info verifier.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52967 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-01Make the subregister hashtable output more readable by wrapping the lines,Owen Anderson
and mark it const along with the associated changes to TargetRegisterInfo. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52966 91177308-0d34-0410-b5e6-96231b3b80d8
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