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authorRoman Divacky <rdivacky@FreeBSD.org>2009-12-15 18:09:07 +0000
committerRoman Divacky <rdivacky@FreeBSD.org>2009-12-15 18:09:07 +0000
commit571945e6affd20b19264ec22495da418d0fbdbb4 (patch)
tree076117cdf3579003f07cad4cdf0593347ce58150 /include/llvm/CodeGen/MachineInstr.h
parent06f9d4012fb8acea3e9861d5722b5965dbb724d9 (diff)
Notes
Diffstat (limited to 'include/llvm/CodeGen/MachineInstr.h')
-rw-r--r--include/llvm/CodeGen/MachineInstr.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/MachineInstr.h b/include/llvm/CodeGen/MachineInstr.h
index c620449401de..87b67d6242d0 100644
--- a/include/llvm/CodeGen/MachineInstr.h
+++ b/include/llvm/CodeGen/MachineInstr.h
@@ -320,6 +320,11 @@ public:
/// loads the instruction does are invariant (if it does multiple loads).
bool isInvariantLoad(AliasAnalysis *AA) const;
+ /// isConstantValuePHI - If the specified instruction is a PHI that always
+ /// merges together the same virtual register, return the register, otherwise
+ /// return 0.
+ unsigned isConstantValuePHI() const;
+
//
// Debugging support
//