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Add new opIsUse method 

llvm-svn: 5062
This commit is contained in:
Chris Lattner 2002-12-15 22:05:02 +00:00
parent 2af545d034
commit 432447fed1
1 changed files with 7 additions and 4 deletions
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11
llvm/include/llvm/CodeGen/MachineInstr.h
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@ -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; }