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Fixed llvm.dbg.value mishandling in CWriter

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This commit is contained in:
Andrey Guskov
2015-04-28 20:55:33 +03:00
parent 0842b82eca
commit 43f432c67a
1 changed files with 8 additions and 1 deletions
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9
cbackend.cpp
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@@ -4030,6 +4030,7 @@ void CWriter::lowerIntrinsics(llvm::Function &F) {
if (llvm::CallInst *CI = llvm::dyn_cast<llvm::CallInst>(I++)) if (llvm::CallInst *CI = llvm::dyn_cast<llvm::CallInst>(I++))
if (llvm::Function *F = CI->getCalledFunction()) if (llvm::Function *F = CI->getCalledFunction())
switch (F->getIntrinsicID()) { switch (F->getIntrinsicID()) {
// We directly implement these intrinsics
case llvm::Intrinsic::not_intrinsic: case llvm::Intrinsic::not_intrinsic:
case llvm::Intrinsic::vastart: case llvm::Intrinsic::vastart:
case llvm::Intrinsic::vacopy: case llvm::Intrinsic::vacopy:
@@ -4052,7 +4053,9 @@ void CWriter::lowerIntrinsics(llvm::Function &F) {
case llvm::Intrinsic::objectsize: case llvm::Intrinsic::objectsize:
case llvm::Intrinsic::readcyclecounter: case llvm::Intrinsic::readcyclecounter:
case llvm::Intrinsic::umul_with_overflow: case llvm::Intrinsic::umul_with_overflow:
// We directly implement these intrinsics // Or we just ignore them because of their uselessness in C++ source
case llvm::Intrinsic::dbg_value:
case llvm::Intrinsic::dbg_declare:
break; break;
default: default:
// If this is an intrinsic that directly corresponds to a GCC // If this is an intrinsic that directly corresponds to a GCC
@@ -4290,6 +4293,10 @@ bool CWriter::visitBuiltinCall(llvm::CallInst &I, llvm::Intrinsic::ID ID,
WroteCallee = true; WroteCallee = true;
return false; return false;
} }
// Ignoring debug intrinsics
case llvm::Intrinsic::dbg_value:
case llvm::Intrinsic::dbg_declare:
return true;
case llvm::Intrinsic::vastart: case llvm::Intrinsic::vastart:
Out << "0; "; Out << "0; ";