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-rw-r--r--include/llvm/CodeGen/MachineInstr.h11
1 files changed, 7 insertions, 4 deletions
diff --git a/include/llvm/CodeGen/MachineInstr.h b/include/llvm/CodeGen/MachineInstr.h
index 5586d61b4b..b173d6a550 100644
--- a/include/llvm/CodeGen/MachineInstr.h
+++ b/include/llvm/CodeGen/MachineInstr.h
@@ -84,12 +84,14 @@ public:
private:
// Bit fields of the flags variable used for different operand properties
- static const char DEFFLAG = 0x1; // this is a def of the operand
- static const char DEFUSEFLAG = 0x2; // this is both a def and a use
- static const char HIFLAG32 = 0x4; // operand is %hi32(value_or_immedVal)
- static const char LOFLAG32 = 0x8; // operand is %lo32(value_or_immedVal)
+ static const char DEFFLAG = 0x01; // this is a def of the operand
+ static const char DEFUSEFLAG = 0x02; // this is both a def and a use
+ static const char HIFLAG32 = 0x04; // operand is %hi32(value_or_immedVal)
+ static const char LOFLAG32 = 0x08; // operand is %lo32(value_or_immedVal)
static const char HIFLAG64 = 0x10; // operand is %hi64(value_or_immedVal)
static const char LOFLAG64 = 0x20; // operand is %lo64(value_or_immedVal)
+
+ static const char USEDEFMASK = 0x03;
private:
union {
@@ -203,6 +205,7 @@ public:
return MBB;
}
+ bool opIsUse () const { return (flags & USEDEFMASK) == 0; }
bool opIsDef () const { return flags & DEFFLAG; }
bool opIsDefAndUse () const { return flags & DEFUSEFLAG; }
bool opHiBits32 () const { return flags & HIFLAG32; }