Reapply "Change -save-temps to emit unoptimized bitcode files."
This reapplies r224503 along with a fix for compiling Fortran by having the
clang driver invoke gcc (see r224546, where it was reverted). I have added
a testcase for that as well.
Original commit message:
It is often convenient to use -save-temps to collect the intermediate
results of a compilation, e.g., when triaging a bug report. Besides the
temporary files for preprocessed source and assembly code, this adds the
unoptimized bitcode files as well.
This adds a new BackendJobAction, which is mostly mechanical, to run after
the CompileJobAction. When not using -save-temps, the BackendJobAction is
combined into one job with the CompileJobAction, similar to the way the
integrated assembler is handled. I've implemented this entirely as a
driver change, so under the hood, it is just using -disable-llvm-optzns
to get the unoptimized bitcode.
Based in part on a patch by Steven Wu.
rdar://problem/18909437
llvm-svn: 224688
diff --git a/clang/lib/Driver/Action.cpp b/clang/lib/Driver/Action.cpp
index d4f339d..360dbee 100644
--- a/clang/lib/Driver/Action.cpp
+++ b/clang/lib/Driver/Action.cpp
@@ -29,6 +29,7 @@
case AnalyzeJobClass: return "analyzer";
case MigrateJobClass: return "migrator";
case CompileJobClass: return "compiler";
+ case BackendJobClass: return "backend";
case AssembleJobClass: return "assembler";
case LinkJobClass: return "linker";
case LipoJobClass: return "lipo";
@@ -92,6 +93,12 @@
types::ID OutputType)
: JobAction(CompileJobClass, std::move(Input), OutputType) {}
+void BackendJobAction::anchor() {}
+
+BackendJobAction::BackendJobAction(std::unique_ptr<Action> Input,
+ types::ID OutputType)
+ : JobAction(BackendJobClass, std::move(Input), OutputType) {}
+
void AssembleJobAction::anchor() {}
AssembleJobAction::AssembleJobAction(std::unique_ptr<Action> Input,