[flang] Add support for -f[no-]verbose-asm (#130788)

This flag provides extra commentary in the assembly output.

2 files changed, 7 insertions, 0 deletions

diff --git a/flang/lib/Frontend/CompilerInvocation.cpp b/flang/lib/Frontend/CompilerInvocation.cpp
index 1537122..edf7387 100644
--- a/flang/lib/Frontend/CompilerInvocation.cpp
+++ b/flang/lib/Frontend/CompilerInvocation.cpp
@@ -476,6 +476,10 @@ static void parseTargetArgs(TargetOptions &opts, llvm::opt::ArgList &args) {
       opts.EnableAIXExtendedAltivecABI = false;
     }
   }
+
+  opts.asmVerbose =
+      args.hasFlag(clang::driver::options::OPT_fverbose_asm,
+                   clang::driver::options::OPT_fno_verbose_asm, false);
 }
 // Tweak the frontend configuration based on the frontend action
 static void setUpFrontendBasedOnAction(FrontendOptions &opts) {
diff --git a/flang/lib/Frontend/FrontendActions.cpp b/flang/lib/Frontend/FrontendActions.cpp
index 94de376..46ec755 100644
--- a/flang/lib/Frontend/FrontendActions.cpp
+++ b/flang/lib/Frontend/FrontendActions.cpp
@@ -1220,6 +1220,7 @@ void CodeGenAction::executeAction() {
 
   clang::DiagnosticsEngine &diags = ci.getDiagnostics();
   const CodeGenOptions &codeGenOpts = ci.getInvocation().getCodeGenOpts();
+  const TargetOptions &targetOpts = ci.getInvocation().getTargetOpts();
   Fortran::lower::LoweringOptions &loweringOpts =
       ci.getInvocation().getLoweringOpts();
   mlir::DefaultTimingManager &timingMgr = ci.getTimingManager();
@@ -1284,6 +1285,8 @@ void CodeGenAction::executeAction() {
   // given on the command-line).
   llvm::TargetMachine &targetMachine = ci.getTargetMachine();
 
+  targetMachine.Options.MCOptions.AsmVerbose = targetOpts.asmVerbose;
+
   const llvm::Triple &theTriple = targetMachine.getTargetTriple();
 
   if (llvmModule->getTargetTriple() != theTriple) {