diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/lto/LTOCodeGenerator.cpp | 38 |
1 files changed, 19 insertions, 19 deletions
diff --git a/tools/lto/LTOCodeGenerator.cpp b/tools/lto/LTOCodeGenerator.cpp index e7c83f9..5f5f76f 100644 --- a/tools/lto/LTOCodeGenerator.cpp +++ b/tools/lto/LTOCodeGenerator.cpp @@ -287,9 +287,7 @@ static void findUsedValues(GlobalVariable *LLVMUsed, SmallPtrSet<GlobalValue*, 8> &UsedValues) { if (LLVMUsed == 0) return; - ConstantArray *Inits = dyn_cast<ConstantArray>(LLVMUsed->getInitializer()); - if (Inits == 0) return; - + ConstantArray *Inits = cast<ConstantArray>(LLVMUsed->getInitializer()); for (unsigned i = 0, e = Inits->getNumOperands(); i != e; ++i) if (GlobalValue *GV = dyn_cast<GlobalValue>(Inits->getOperand(i)->stripPointerCasts())) @@ -326,24 +324,26 @@ void LTOCodeGenerator::applyScopeRestrictions() { if (LLVMCompilerUsed) LLVMCompilerUsed->eraseFromParent(); - llvm::Type *i8PTy = llvm::Type::getInt8PtrTy(_context); - std::vector<Constant*> asmUsed2; - for (SmallPtrSet<GlobalValue*, 16>::const_iterator i = asmUsed.begin(), - e = asmUsed.end(); i !=e; ++i) { - GlobalValue *GV = *i; - Constant *c = ConstantExpr::getBitCast(GV, i8PTy); - asmUsed2.push_back(c); + if (!asmUsed.empty()) { + llvm::Type *i8PTy = llvm::Type::getInt8PtrTy(_context); + std::vector<Constant*> asmUsed2; + for (SmallPtrSet<GlobalValue*, 16>::const_iterator i = asmUsed.begin(), + e = asmUsed.end(); i !=e; ++i) { + GlobalValue *GV = *i; + Constant *c = ConstantExpr::getBitCast(GV, i8PTy); + asmUsed2.push_back(c); + } + + llvm::ArrayType *ATy = llvm::ArrayType::get(i8PTy, asmUsed2.size()); + LLVMCompilerUsed = + new llvm::GlobalVariable(*mergedModule, ATy, false, + llvm::GlobalValue::AppendingLinkage, + llvm::ConstantArray::get(ATy, asmUsed2), + "llvm.compiler.used"); + + LLVMCompilerUsed->setSection("llvm.metadata"); } - llvm::ArrayType *ATy = llvm::ArrayType::get(i8PTy, asmUsed2.size()); - LLVMCompilerUsed = - new llvm::GlobalVariable(*mergedModule, ATy, false, - llvm::GlobalValue::AppendingLinkage, - llvm::ConstantArray::get(ATy, asmUsed2), - "llvm.compiler.used"); - - LLVMCompilerUsed->setSection("llvm.metadata"); - passes.add(createInternalizePass(mustPreserveList)); // apply scope restrictions |