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UBSan now uses prologue data instead of prefix data 

As the semantics of prefix data has changed. See D6454.

Patch by Ben Gamari!

Test Plan: Testsuite

Differential Revision: http://reviews.llvm.org/D6489

llvm-svn: 223190
This commit is contained in:
Peter Collingbourne 2014-12-03 02:08:51 +00:00
parent 51d2de7b9e
commit 1a0a9a3c75
1 changed files with 6 additions and 6 deletions
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12
clang/lib/CodeGen/CodeGenFunction.cpp
View File

@ -603,17 +603,17 @@ void CodeGenFunction::StartFunction(GlobalDecl GD,
}
// If we are checking function types, emit a function type signature as
// prefix data.
// prologue data.
if (getLangOpts().CPlusPlus && SanOpts.has(SanitizerKind::Function)) {
if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D)) {
if (llvm::Constant *PrefixSig =
if (llvm::Constant *PrologueSig =
CGM.getTargetCodeGenInfo().getUBSanFunctionSignature(CGM)) {
llvm::Constant *FTRTTIConst =
CGM.GetAddrOfRTTIDescriptor(FD->getType(), /*ForEH=*/true);
llvm::Constant *PrefixStructElems[] = { PrefixSig, FTRTTIConst };
llvm::Constant *PrefixStructConst =
llvm::ConstantStruct::getAnon(PrefixStructElems, /*Packed=*/true);
Fn->setPrefixData(PrefixStructConst);
llvm::Constant *PrologueStructElems[] = { PrologueSig, FTRTTIConst };
llvm::Constant *PrologueStructConst =
llvm::ConstantStruct::getAnon(PrologueStructElems, /*Packed=*/true);
Fn->setPrologueData(PrologueStructConst);
}
}
}