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Bitcode cmd arguments: fix compilation for LLVM < 3.8, and disable for LLVM 3.5.

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This commit is contained in:
Johan Engelen 2016-06-10 12:42:05 +02:00
parent 683d9ecccd
commit 404d483c2a
4 changed files with 33 additions and 11 deletions
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10
driver/codegenerator.cpp
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@ -38,6 +38,11 @@ void emitLinkerOptions(IRState &irs, llvm::Module &M, llvm::LLVMContext &ctx) {
// Merge the Linker Options with the pre-existing one
// (this can happen when passing a .bc file on the commandline)
#if LDC_LLVM_VER < 306
// Passing a bitcode file on the commandline is not supported for LLVM 3.5.
llvm_unreachable(
"Merging of Linker Options is not implemented for LLVM 3.5");
#else
auto *moduleFlags = M.getModuleFlagsMetadata();
for (unsigned i = 0, e = moduleFlags->getNumOperands(); i < e; ++i) {
auto *flag = moduleFlags->getOperand(i);
@ -66,6 +71,7 @@ void emitLinkerOptions(IRState &irs, llvm::Module &M, llvm::LLVMContext &ctx) {
break;
}
#endif
}
}
}
@ -212,14 +218,14 @@ void CodeGenerator::emit(Module *m) {
auto startSymbol = new llvm::GlobalVariable(
ir_->module, llvm::Type::getInt32Ty(ir_->module.getContext()), false,
llvm::GlobalValue::ExternalLinkage,
llvm::ConstantInt::get(ir_->module.getContext(), APInt(32,0)),
llvm::ConstantInt::get(ir_->module.getContext(), APInt(32, 0)),
"_tlsstart", &*(ir_->module.global_begin()));
startSymbol->setSection(".tdata");
auto endSymbol = new llvm::GlobalVariable(
ir_->module, llvm::Type::getInt32Ty(ir_->module.getContext()), false,
llvm::GlobalValue::ExternalLinkage,
llvm::ConstantInt::get(ir_->module.getContext(), APInt(32,0)),
llvm::ConstantInt::get(ir_->module.getContext(), APInt(32, 0)),
"_tlsend");
endSymbol->setSection(".tcommon");
}