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SSARegMap -- the mapping between SSARegisters and their RegisterClasses, which

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imply types of SSA Registers. This is on a per-function basis, so the
MachineFunction contains the SSARegMap, and has accessor functions to it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4774 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Misha Brukman
2002-11-20 00:53:10 +00:00
parent 602b9ff595
commit 1617e6c997
2 changed files with 53 additions and 0 deletions
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13
include/llvm/CodeGen/MachineFunction.h
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@@ -10,6 +10,7 @@
#define LLVM_CODEGEN_MACHINEFUNCTION_H
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/SSARegMap.h"
#include "llvm/Annotation.h"
#include "Support/HashExtras.h"
#include "Support/hash_set"
@@ -46,6 +47,9 @@ class MachineFunction : private Annotation {
bool compiledAsLeaf;
bool spillsAreaFrozen;
bool automaticVarsAreaFrozen;
// Keeping track of mapping from SSA values to registers
SSARegMap *SSARegMapping;
public:
MachineFunction(const Function *Fn, const TargetMachine& target);
@@ -86,6 +90,15 @@ public:
static void destruct(const Function *F);
static MachineFunction& get(const Function *F);
// Getting and storing SSARegMap information
const TargetRegisterClass* getRegClass(unsigned Reg) {
return SSARegMapping->getRegClass(Reg);
}
void addRegMap(unsigned Reg, const TargetRegisterClass *RegClass) {
SSARegMapping->addRegMap(Reg, RegClass);
}
void clearSSARegMap() { delete SSARegMapping; }
// Provide accessors for the MachineBasicBlock list...
typedef iplist<MachineBasicBlock> BasicBlockListType;
typedef BasicBlockListType::iterator iterator;