[Clang][NewPM] Don't bail out if the target machine is empty
This matches the behavior of the old pass manager. There are some
targets that don't have target machine at all (e.g. le32, spir) which
whose tests would never run with new pass manager. Similarly, we would
need to disable tests for targets that are disabled.
Differential Revision: https://reviews.llvm.org/D58374
llvm-svn: 360100
diff --git a/clang/lib/CodeGen/BackendUtil.cpp b/clang/lib/CodeGen/BackendUtil.cpp
index a43ebe9..cd2a5f6 100644
--- a/clang/lib/CodeGen/BackendUtil.cpp
+++ b/clang/lib/CodeGen/BackendUtil.cpp
@@ -965,13 +965,15 @@
TimeRegion Region(FrontendTimesIsEnabled ? &CodeGenerationTime : nullptr);
setCommandLineOpts(CodeGenOpts);
- // The new pass manager always makes a target machine available to passes
- // during construction.
- CreateTargetMachine(/*MustCreateTM*/ true);
- if (!TM)
- // This will already be diagnosed, just bail.
+ bool RequiresCodeGen = (Action != Backend_EmitNothing &&
+ Action != Backend_EmitBC &&
+ Action != Backend_EmitLL);
+ CreateTargetMachine(RequiresCodeGen);
+
+ if (RequiresCodeGen && !TM)
return;
- TheModule->setDataLayout(TM->createDataLayout());
+ if (TM)
+ TheModule->setDataLayout(TM->createDataLayout());
Optional<PGOOptions> PGOOpt;