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[SanitizerCoverage] Use llvm::getDISubprogram() to get location of the entry basic block.

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DebugLoc::getFnDebugLoc() should soon be removed. Also,
getDISubprogram() might become more effective soon and wouldn't need to
scan debug locations at all, if function-level metadata would be emitted
by Clang.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239586 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Alexey Samsonov
2015-06-12 01:48:47 +00:00
parent 7168a91de7
commit 0fd41495ef
1 changed files with 9 additions and 3 deletions
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12
lib/Transforms/Instrumentation/SanitizerCoverage.cpp
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@@ -33,6 +33,7 @@
#include "llvm/ADT/SmallVector.h" #include "llvm/ADT/SmallVector.h"
#include "llvm/IR/CallSite.h" #include "llvm/IR/CallSite.h"
#include "llvm/IR/DataLayout.h" #include "llvm/IR/DataLayout.h"
#include "llvm/IR/DebugInfo.h"
#include "llvm/IR/Function.h" #include "llvm/IR/Function.h"
#include "llvm/IR/IRBuilder.h" #include "llvm/IR/IRBuilder.h"
#include "llvm/IR/InlineAsm.h" #include "llvm/IR/InlineAsm.h"
@@ -385,9 +386,14 @@ void SanitizerCoverageModule::InjectCoverageAtBlock(Function &F, BasicBlock &BB,
} }
bool IsEntryBB = &BB == &F.getEntryBlock(); bool IsEntryBB = &BB == &F.getEntryBlock();
DebugLoc EntryLoc = IsEntryBB && IP->getDebugLoc() DebugLoc EntryLoc;
? IP->getDebugLoc().getFnDebugLoc() if (IsEntryBB) {
: IP->getDebugLoc(); if (auto SP = getDISubprogram(&F))
EntryLoc = DebugLoc::get(SP->getScopeLine(), 0, SP);
} else {
EntryLoc = IP->getDebugLoc();
}
IRBuilder<> IRB(IP); IRBuilder<> IRB(IP);
IRB.SetCurrentDebugLocation(EntryLoc); IRB.SetCurrentDebugLocation(EntryLoc);
SmallVector<Value *, 1> Indices; SmallVector<Value *, 1> Indices;