Only create the target machine when emitting assembly.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57993 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Driver/Backend.cpp b/Driver/Backend.cpp
index 2121749..a59c82c 100644
--- a/Driver/Backend.cpp
+++ b/Driver/Backend.cpp
@@ -144,23 +144,6 @@
}
bool BackendConsumer::AddEmitPasses(bool Fast, std::string &Error) {
- // Create the TargetMachine for generating code.
- const TargetMachineRegistry::entry *TME =
- TargetMachineRegistry::getClosestStaticTargetForModule(*TheModule, Error);
- if (!TME) {
- Error = std::string("Unable to get target machine: ") + Error;
- return false;
- }
-
- // FIXME: Support features?
- std::string FeatureStr;
- TargetMachine *TM = TME->CtorFn(*TheModule, FeatureStr);
-
- // Set register scheduler & allocation policy.
- RegisterScheduler::setDefault(createDefaultScheduler);
- RegisterRegAlloc::setDefault(Fast ? createLocalRegisterAllocator :
- createLinearScanRegisterAllocator);
-
if (OutputFile == "-" || (InputFile == "-" && OutputFile.empty())) {
AsmOutStream = new raw_stdout_ostream();
sys::Program::ChangeStdoutToBinary();
@@ -189,6 +172,23 @@
} else if (Action == Backend_EmitLL) {
getPerModulePasses()->add(createPrintModulePass(AsmOutStream));
} else {
+ // Create the TargetMachine for generating code.
+ const TargetMachineRegistry::entry *TME =
+ TargetMachineRegistry::getClosestStaticTargetForModule(*TheModule, Error);
+ if (!TME) {
+ Error = std::string("Unable to get target machine: ") + Error;
+ return false;
+ }
+
+ // FIXME: Support features?
+ std::string FeatureStr;
+ TargetMachine *TM = TME->CtorFn(*TheModule, FeatureStr);
+
+ // Set register scheduler & allocation policy.
+ RegisterScheduler::setDefault(createDefaultScheduler);
+ RegisterRegAlloc::setDefault(Fast ? createLocalRegisterAllocator :
+ createLinearScanRegisterAllocator);
+
// From llvm-gcc:
// If there are passes we have to run on the entire module, we do codegen
// as a separate "pass" after that happens.