From 3f1403f14e45a862ff97c14d80a1daf28518722a Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Tue, 20 Apr 2010 14:46:25 +0000 Subject: [PATCH] Don't iterate through the whole block just to find the PHI nodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101900 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp b/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp index 10b0ee40360..704b63356a7 100644 --- a/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp +++ b/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp @@ -211,13 +211,10 @@ void FunctionLoweringInfo::set(const Function &fn, MachineFunction &mf, // Create Machine PHI nodes for LLVM PHI nodes, lowering them as // appropriate. - const PHINode *PN; DebugLoc DL; - for (BasicBlock::const_iterator - I = BB->begin(), E = BB->end(); I != E; ++I) { - - PN = dyn_cast(I); - if (!PN || PN->use_empty()) continue; + for (BasicBlock::const_iterator I = BB->begin(); + const PHINode *PN = dyn_cast(I); ++I) { + if (PN->use_empty()) continue; unsigned PHIReg = ValueMap[PN]; assert(PHIReg && "PHI node does not have an assigned virtual register!"); -- 2.34.1