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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2009-11-10 22:00:56 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2009-11-10 22:00:56 +0000 |
| commit | e35e3c33dc5533dd1e8ab7d9f4039cc1429d56aa (patch) | |
| tree | c89ec848962125ddc277acf964a22a9f43233b9d /lib/CodeGen/PHIElimination.h | |
| parent | 6f84a5feee5c7322a5145992bd4704225987909c (diff) | |
Refactoring: Extract method PHIElimination::isLiveOut().
Clean up some whitespace.
No functional changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86724 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/PHIElimination.h')
| -rw-r--r-- | lib/CodeGen/PHIElimination.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/CodeGen/PHIElimination.h b/lib/CodeGen/PHIElimination.h index 3d02dfdcdd..8a04f9d6ac 100644 --- a/lib/CodeGen/PHIElimination.h +++ b/lib/CodeGen/PHIElimination.h @@ -89,6 +89,12 @@ namespace llvm { /// void analyzePHINodes(const MachineFunction& Fn); + /// isLiveOut - Determine if Reg is live out from MBB, when not + /// considering PHI nodes. This means that Reg is either killed by + /// a successor block or passed through one. + bool isLiveOut(unsigned Reg, const MachineBasicBlock &MBB, + LiveVariables &LV); + // FindCopyInsertPoint - Find a safe place in MBB to insert a copy from // SrcReg. This needs to be after any def or uses of SrcReg, but before // any subsequent point where control flow might jump out of the basic |