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Don't require a BB to look-up live variables, unless they may need to

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be recomputed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7384 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Vikram S. Adve 2003-07-29 19:32:04 +00:00
parent c78022ed07
commit 0eb7f745ed
1 changed files with 7 additions and 3 deletions
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10
include/llvm/CodeGen/FunctionLiveVarInfo.h
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@ -110,13 +110,17 @@ public:
// gets InSet of a BB // gets InSet of a BB
const ValueSet &getInSetOfBB(const BasicBlock *BB) const; const ValueSet &getInSetOfBB(const BasicBlock *BB) const;
// gets the Live var set BEFORE an instruction // gets the Live var set BEFORE an instruction.
// if BB is specified and the live var set has not yet been computed,
// it will be computed on demand.
const ValueSet &getLiveVarSetBeforeMInst(const MachineInstr *MI, const ValueSet &getLiveVarSetBeforeMInst(const MachineInstr *MI,
const BasicBlock *BB); const BasicBlock *BB = 0);
// gets the Live var set AFTER an instruction // gets the Live var set AFTER an instruction
// if BB is specified and the live var set has not yet been computed,
// it will be computed on demand.
const ValueSet &getLiveVarSetAfterMInst(const MachineInstr *MI, const ValueSet &getLiveVarSetAfterMInst(const MachineInstr *MI,
const BasicBlock *BB); const BasicBlock *BB = 0);
}; };
#endif #endif