[clang] Implement JSON formatted -ftime-report (#137737)

This patch adds a new flag, -ftime-report-json, which outputs the same
information as -ftime-report but as JSON instead of -ftime-report's
pretty printed format.

1 files changed, 10 insertions, 3 deletions

diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index 8ff62ae2..c7d11e6 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -1699,6 +1699,9 @@ void CompilerInvocationBase::GenerateCodeGenArgs(const CodeGenOptions &Opts,
       GenerateArg(Consumer, OPT_ftime_report_EQ, "per-pass-run");
     else
       GenerateArg(Consumer, OPT_ftime_report);
+
+    if (Opts.TimePassesJson)
+      GenerateArg(Consumer, OPT_ftime_report_json);
   }
 
   if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO)
@@ -2000,12 +2003,13 @@ bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args,
             : llvm::codegenoptions::DebugTemplateNamesKind::Mangled);
   }
 
-  if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) {
+  if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ,
+                                     OPT_ftime_report_json)) {
     Opts.TimePasses = true;
 
     // -ftime-report= is only for new pass manager.
-    if (A->getOption().getID() == OPT_ftime_report_EQ) {
-      StringRef Val = A->getValue();
+    if (const Arg *EQ = Args.getLastArg(OPT_ftime_report_EQ)) {
+      StringRef Val = EQ->getValue();
       if (Val == "per-pass")
         Opts.TimePassesPerRun = false;
       else if (Val == "per-pass-run")
@@ -2014,6 +2018,9 @@ bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args,
         Diags.Report(diag::err_drv_invalid_value)
             << A->getAsString(Args) << A->getValue();
     }
+
+    if (Args.getLastArg(OPT_ftime_report_json))
+      Opts.TimePassesJson = true;
   }
 
   Opts.PrepareForLTO = false;