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* Lower eh filter intrinsic.Jim Laskey2007-03-012-1/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34802 91177308-0d34-0410-b5e6-96231b3b80d8
* Delete register scavenger when done with it.Evan Cheng2007-03-011-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34786 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a version of FindUnusedReg that restrict search to a specific set of ↵Evan Cheng2007-03-011-0/+15
| | | | | | registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34784 91177308-0d34-0410-b5e6-96231b3b80d8
* A restore is promoted to copy (or deleted entirely), remove the kill from ↵Evan Cheng2007-03-011-3/+4
| | | | | | the last use of the targetted register. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34773 91177308-0d34-0410-b5e6-96231b3b80d8
* Interface clean up.Evan Cheng2007-03-011-1/+1
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* Interface clean up.Evan Cheng2007-03-011-13/+7
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* Oops.Evan Cheng2007-03-011-1/+0
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* Track all joined registers and eliminate unneeded kills after all joining ↵Evan Cheng2007-03-011-22/+42
| | | | | | are done. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34767 91177308-0d34-0410-b5e6-96231b3b80d8
* Chain is on second operand.Jim Laskey2007-02-281-4/+23
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* Handle mix of personalities.Jim Laskey2007-02-281-30/+37
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* Provide a more meaningful name.Jim Laskey2007-02-281-1/+1
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* MERGE_VALUES unnecessary.Jim Laskey2007-02-281-12/+4
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* Fix a typo, thanks Bill!Nate Begeman2007-02-281-1/+1
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* More Mach-O writer improvements.Nate Begeman2007-02-282-32/+61
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* add methods for analysis of call results and return nodes.Chris Lattner2007-02-281-12/+42
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* add methods to analyze calls and formals.Chris Lattner2007-02-281-0/+34
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* add a newline at end of fileChris Lattner2007-02-281-0/+1
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* Make requiresRegisterScavenging determination on a per MachineFunction basis.Evan Cheng2007-02-281-1/+1
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* MRegisterInfo disowns RegScavenger. It's immutable.Evan Cheng2007-02-281-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34706 91177308-0d34-0410-b5e6-96231b3b80d8
* Some more code clean up.Evan Cheng2007-02-271-23/+29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34700 91177308-0d34-0410-b5e6-96231b3b80d8
* Oops.Evan Cheng2007-02-271-1/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34698 91177308-0d34-0410-b5e6-96231b3b80d8
* Let MRegisterInfo now owns RegScavenger.Evan Cheng2007-02-271-3/+3
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* RegScavenger interface change to make it more flexible.Evan Cheng2007-02-271-16/+18
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* Minor refactoring of CC Lowering interfacesChris Lattner2007-02-271-1/+4
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* move CC Lowering stuff to its own public interfaceChris Lattner2007-02-271-0/+34
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* forward() should not increment internal iterator. Its client may insert ↵Evan Cheng2007-02-272-5/+26
| | | | | | instruction between now and next forward() call. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34649 91177308-0d34-0410-b5e6-96231b3b80d8
* Joining an interval with a dead copy instruction. Shorten the live range to ↵Evan Cheng2007-02-261-20/+46
| | | | | | the last use. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34645 91177308-0d34-0410-b5e6-96231b3b80d8
* Fold (sext (truncate x)) more aggressively, by avoiding creation of aChris Lattner2007-02-261-10/+34
| | | | | | | | | | 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
* track signedness of formal argument, though we have a fixme here.Chris Lattner2007-02-261-0/+8
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* Fix for PR1224.Jim Laskey2007-02-251-35/+50
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* optimize duplicate ValueMap lookupsChris Lattner2007-02-251-9/+6
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* A couple of more places where a register liveness has been extended and its ↵Evan Cheng2007-02-251-5/+57
| | | | | | last kill should be updated accordingly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34597 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an assertion.Evan Cheng2007-02-251-2/+4
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* Fix a couple of bugs related IsDead back propagation during coalescing.Evan Cheng2007-02-251-5/+10
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* If the liveinterval of the source instruction has been extended, remove the ↵Evan Cheng2007-02-251-0/+6
| | | | | | IsKill marker. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34594 91177308-0d34-0410-b5e6-96231b3b80d8
* Only add liveinterval to livein set if it isn't assigned a stack slot.Evan Cheng2007-02-251-4/+4
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* fold trivial token factor nodes. This allows us to compileChris Lattner2007-02-251-0/+6
| | | | | | | | | | | | | | | | | | | | | | | 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
* initialize a instance variableChris Lattner2007-02-251-0/+1
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* Deal with cases when MMI is not requested.Jim Laskey2007-02-241-0/+14
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* Drop unused operand.Jim Laskey2007-02-241-2/+0
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* Fix CodeGen/Generic/2007-02-23-DAGCombine-Miscompile.ll and PR1219Chris Lattner2007-02-241-2/+2
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* Reuse extends the liveness of a register. Transfer the kill to the operand ↵Evan Cheng2007-02-231-1/+6
| | | | | | that reuse it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34536 91177308-0d34-0410-b5e6-96231b3b80d8
* Handle improper cast.Jim Laskey2007-02-231-6/+19
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* Handle cases when joining live intervals of two virtual registers.Evan Cheng2007-02-231-7/+17
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* Mark livein registers as being in used.Evan Cheng2007-02-231-0/+6
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* A spill kills the register being stored. But it is later being reused by ↵Evan Cheng2007-02-231-25/+39
| | | | | | 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
* First potential client of register scavenger.Evan Cheng2007-02-231-4/+13
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* Use findRegisterUseOperand to find a kill of particular register.Evan Cheng2007-02-231-3/+5
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* Initial check in of register scavenger. Its only current functionality is ↵Evan Cheng2007-02-231-0/+140
| | | | | | tracking live registers per MBB. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34511 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unnecessary isKill properties if a live range has been lengthened due ↵Evan Cheng2007-02-221-1/+24
| | | | | | to coalescing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34503 91177308-0d34-0410-b5e6-96231b3b80d8
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