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Made a single common InvalidRegNum = -1.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6473 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Vikram S. Adve 2003-05-31 07:44:07 +00:00
parent 2263df029a
commit 3fd7bf4257
1 changed files with 8 additions and 5 deletions
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13
include/llvm/Target/TargetRegInfo.h
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@ -65,6 +65,11 @@ protected:
public: public:
const TargetMachine ⌖ const TargetMachine ⌖
// A register can be initialized to an invalid number. That number can
// be obtained using this method.
//
static int getInvalidRegNum() { return -1; }
TargetRegInfo(const TargetMachine& tgt) : target(tgt) { } TargetRegInfo(const TargetMachine& tgt) : target(tgt) { }
~TargetRegInfo() { ~TargetRegInfo() {
for (unsigned i = 0, e = MachineRegClassArr.size(); i != e; ++i) for (unsigned i = 0, e = MachineRegClassArr.size(); i != e; ++i)
@ -209,12 +214,15 @@ public:
} }
// Returns the assembly-language name of the specified machine register. // Returns the assembly-language name of the specified machine register.
//
const char * const getUnifiedRegName(int UnifiedRegNum) const { const char * const getUnifiedRegName(int UnifiedRegNum) const {
unsigned regClassID = getNumOfRegClasses(); // initialize to invalid value unsigned regClassID = getNumOfRegClasses(); // initialize to invalid value
int regNumInClass = getClassRegNum(UnifiedRegNum, regClassID); int regNumInClass = getClassRegNum(UnifiedRegNum, regClassID);
return MachineRegClassArr[regClassID]->getRegName(regNumInClass); return MachineRegClassArr[regClassID]->getRegName(regNumInClass);
} }
// Get the register type for a register identified different ways.
//
virtual int getRegType(const Type* type) const = 0; virtual int getRegType(const Type* type) const = 0;
virtual int getRegType(const LiveRange *LR) const = 0; virtual int getRegType(const LiveRange *LR) const = 0;
virtual int getRegType(int unifiedRegNum) const = 0; virtual int getRegType(int unifiedRegNum) const = 0;
@ -224,11 +232,6 @@ public:
virtual unsigned getFramePointer() const = 0; virtual unsigned getFramePointer() const = 0;
virtual unsigned getStackPointer() const = 0; virtual unsigned getStackPointer() const = 0;
// A register can be initialized to an invalid number. That number can
// be obtained using this method.
//
virtual int getInvalidRegNum() const = 0;
// Method for inserting caller saving code. The caller must save all the // Method for inserting caller saving code. The caller must save all the
// volatile registers across a call based on the calling conventions of // volatile registers across a call based on the calling conventions of
// an architecture. This must insert code for saving and restoring // an architecture. This must insert code for saving and restoring