From 0eb7f745ed843f793f0d7ae28d35d0704fa8fe6d Mon Sep 17 00:00:00 2001 From: "Vikram S. Adve" Date: Tue, 29 Jul 2003 19:32:04 +0000 Subject: [PATCH] Don't require a BB to look-up live variables, unless they may need to be recomputed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7384 91177308-0d34-0410-b5e6-96231b3b80d8 --- include/llvm/CodeGen/FunctionLiveVarInfo.h | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/include/llvm/CodeGen/FunctionLiveVarInfo.h b/include/llvm/CodeGen/FunctionLiveVarInfo.h index 0bdd7f92b9c..9120d8eb751 100644 --- a/include/llvm/CodeGen/FunctionLiveVarInfo.h +++ b/include/llvm/CodeGen/FunctionLiveVarInfo.h @@ -110,13 +110,17 @@ public: // gets InSet of a BB 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 BasicBlock *BB); + const BasicBlock *BB = 0); // 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 BasicBlock *BB); + const BasicBlock *BB = 0); }; #endif