RPCS3/llvm
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm.git synced 2025-02-03 17:24:24 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Scanning entire basic block may be too expensive in terms of compile time. Instead, just use whatever location info first non-phi instruction has.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130729 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2011-05-02 21:57:00 +00:00
parent d61c40360c
commit 67352b3ce7
1 changed files with 4 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
lib/Transforms/Utils/BasicBlockUtils.cpp
View File

@ -542,11 +542,9 @@ ReturnInst *llvm::FoldReturnIntoUncondBranch(ReturnInst *RI, BasicBlock *BB,
/// GetFirstDebugLocInBasicBlock - Return first valid DebugLoc entry in a
/// given basic block.
DebugLoc llvm::GetFirstDebugLocInBasicBlock(const BasicBlock *BB) {
for (BasicBlock::const_iterator BI = BB->begin(), BE = BB->end();
BI != BE; ++BI) {
DebugLoc DL = BI->getDebugLoc();
if (!DL.isUnknown())
return DL;
}
if (const Instruction *I = BB->getFirstNonPHI())
return I->getDebugLoc();
// Scanning entire block may be too expensive, if the first instruction
// does not have valid location info.
return DebugLoc();
}