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| author | Dan Gohman <gohman@apple.com> | 2010-04-20 14:46:25 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-04-20 14:46:25 +0000 |
| commit | 3f1403f14e45a862ff97c14d80a1daf28518722a (patch) | |
| tree | e73fae97f69e6818363f290928d7abb0a12d6d35 /lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp | |
| parent | a9b2313c13a1bc8cbae751da03a9049ecaf0f918 (diff) | |
| download | llvm-3f1403f14e45a862ff97c14d80a1daf28518722a.tar.gz llvm-3f1403f14e45a862ff97c14d80a1daf28518722a.tar.bz2 llvm-3f1403f14e45a862ff97c14d80a1daf28518722a.tar.xz | |
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
Diffstat (limited to 'lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp b/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp index 10b0ee4036..704b63356a 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<PHINode>(I); - if (!PN || PN->use_empty()) continue; + for (BasicBlock::const_iterator I = BB->begin(); + const PHINode *PN = dyn_cast<PHINode>(I); ++I) { + if (PN->use_empty()) continue; unsigned PHIReg = ValueMap[PN]; assert(PHIReg && "PHI node does not have an assigned virtual register!"); |