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2007-03-01Track all joined registers and eliminate unneeded kills after all joining ↵Evan Cheng
are done. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34767 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28Chain is on second operand.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34759 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28Handle mix of personalities.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34752 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28Provide a more meaningful name.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34751 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28MERGE_VALUES unnecessary.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34750 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28Fix a typo, thanks Bill!Nate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34741 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28More Mach-O writer improvements.Nate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34740 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28add methods for analysis of call results and return nodes.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34738 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28add methods to analyze calls and formals.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34736 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28add a newline at end of fileChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34735 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28Make requiresRegisterScavenging determination on a per MachineFunction basis.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34711 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28MRegisterInfo disowns RegScavenger. It's immutable.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34706 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-27Some more code clean up.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34700 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-27Oops.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34698 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-27Let MRegisterInfo now owns RegScavenger.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34691 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-27RegScavenger interface change to make it more flexible.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34690 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-27Minor refactoring of CC Lowering interfacesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34656 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-27move CC Lowering stuff to its own public interfaceChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34655 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-27forward() should not increment internal iterator. Its client may insert ↵Evan Cheng
instruction between now and next forward() call. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34649 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-26Joining an interval with a dead copy instruction. Shorten the live range to ↵Evan Cheng
the last use. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34645 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-26Fold (sext (truncate x)) more aggressively, by avoiding creation of aChris Lattner
sextinreg if not needed. This is useful in two cases: before legalize, it avoids creating a sextinreg that will be trivially removed. After legalize if the target doesn't support sextinreg, the trunc/sext would not have been removed before. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34621 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-26track signedness of formal argument, though we have a fixme here.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34620 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25Fix for PR1224.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34610 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25optimize duplicate ValueMap lookupsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34599 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25A couple of more places where a register liveness has been extended and its ↵Evan Cheng
last kill should be updated accordingly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34597 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25Add an assertion.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34596 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25Fix a couple of bugs related IsDead back propagation during coalescing.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34595 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25If the liveinterval of the source instruction has been extended, remove the ↵Evan Cheng
IsKill marker. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34594 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25Only add liveinterval to livein set if it isn't assigned a stack slot.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34593 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25fold trivial token factor nodes. This allows us to compileChris Lattner
test/CodeGen/X86/fp-stack-ret.ll into: movl 4(%esp), %eax fldl (%eax) ret instead of: subl $12, %esp movl 16(%esp), %eax movsd (%eax), %xmm0 movsd %xmm0, (%esp) fldl (%esp) addl $12, %esp ret by eliminating a token factor that blocked a check. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34584 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25initialize a instance variableChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34567 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-24Deal with cases when MMI is not requested.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34556 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-24Drop unused operand.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34555 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-24Fix CodeGen/Generic/2007-02-23-DAGCombine-Miscompile.ll and PR1219Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34551 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-23Reuse extends the liveness of a register. Transfer the kill to the operand ↵Evan Cheng
that reuse it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34536 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-23Handle improper cast.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34535 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-23Handle cases when joining live intervals of two virtual registers.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34534 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-23Mark livein registers as being in used.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34525 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-23A spill kills the register being stored. But it is later being reused by ↵Evan Cheng
spiller, its live range has to be extended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34517 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-23First potential client of register scavenger.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34516 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-23Use findRegisterUseOperand to find a kill of particular register.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34512 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-23Initial check in of register scavenger. Its only current functionality is ↵Evan Cheng
tracking live registers per MBB. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34511 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-22Remove unnecessary isKill properties if a live range has been lengthened due ↵Evan Cheng
to coalescing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34503 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-22Update comment.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34502 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-22Missing end of abbreviations - correctionJim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34501 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-22Missing end of abbreviations.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34500 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-22Need to init.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34499 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-22Remove isAccessable.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34497 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-22Use exception flag.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34496 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-22Remove assertion.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34494 91177308-0d34-0410-b5e6-96231b3b80d8
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