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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-07-03 00:04:37 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-07-03 00:04:37 +0000 |
| commit | 273f7e42994a5bce0614d04d96dbfdf05fd652e5 (patch) | |
| tree | 5963df402c4f6ba2641e0e869ddafa71fd5aa850 /include/llvm/CodeGen/MachineInstr.h | |
| parent | 43b8fd728b889f15ea4c65ca957a7420ce2905cd (diff) | |
| download | llvm-273f7e42994a5bce0614d04d96dbfdf05fd652e5.tar.gz llvm-273f7e42994a5bce0614d04d96dbfdf05fd652e5.tar.bz2 llvm-273f7e42994a5bce0614d04d96dbfdf05fd652e5.tar.xz | |
Detect and handle COPY in many places.
This code is transitional, it will soon be possible to eliminate
isExtractSubreg, isInsertSubreg, and isMoveInstr in most places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107547 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/CodeGen/MachineInstr.h')
| -rw-r--r-- | include/llvm/CodeGen/MachineInstr.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/MachineInstr.h b/include/llvm/CodeGen/MachineInstr.h index 003ed15f05..08ada4cc91 100644 --- a/include/llvm/CodeGen/MachineInstr.h +++ b/include/llvm/CodeGen/MachineInstr.h @@ -231,6 +231,12 @@ public: return getOpcode() == TargetOpcode::COPY; } + /// isCopyLike - Return true if the instruction behaves like a copy. + /// This does not include native copy instructions. + bool isCopyLike() const { + return isCopy() || isSubregToReg() || isExtractSubreg() || isInsertSubreg(); + } + /// readsRegister - Return true if the MachineInstr reads the specified /// register. If TargetRegisterInfo is passed, then it also checks if there /// is a read of a super-register. |