From: Jan Svoboda <jan_svoboda@apple.com>
Date: Mon, 16 Nov 2020 11:17:29 +0000 (+0100)
Subject: [clang][cli] Add ability to make fixups to CompilerInvocation after option parsing
X-Git-Tag: llvmorg-13-init~5773
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2be569870486a2068667f4625723c0a7409f4c97;p=platform%2Fupstream%2Fllvm.git

[clang][cli] Add ability to make fixups to CompilerInvocation after option parsing

Depends on D83211

Reviewed By: Bigcheese

Original patch by Daniel Grumberg.

Differential Revision: https://reviews.llvm.org/D83298
---

diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td
index feae813..b850f64 100644
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -1347,7 +1347,7 @@ def fcf_protection : Flag<["-"], "fcf-protection">, Group<f_Group>, Flags<[CoreO
   Alias<fcf_protection_EQ>, AliasArgs<["full"]>,
   HelpText<"Enable cf-protection in 'full' mode">;
 
-defm xray_instrument : OptInFFlag<"xray-instrument", "Generate XRay instrumentation sleds on function entry and exit">;
+defm xray_instrument : OptInFFlag<"xray-instrument", "Generate XRay instrumentation sleds on function entry and exit", "", "", [], "LangOpts->XRayInstrument">;
 
 def fxray_instruction_threshold_EQ :
   JoinedOrSeparate<["-"], "fxray-instruction-threshold=">,
@@ -1375,15 +1375,15 @@ def fxray_modes :
   HelpText<"List of modes to link in by default into XRay instrumented binaries.">;
 
 defm xray_always_emit_customevents : OptInFFlag<"xray-always-emit-customevents",
-  "Always emit __xray_customevent(...) calls even if the containing function is not always instrumented">;
+  "Always emit __xray_customevent(...) calls even if the containing function is not always instrumented", "", "", [], "LangOpts->XRayAlwaysEmitCustomEvents">;
 
 defm xray_always_emit_typedevents : OptInFFlag<"xray-always-emit-typedevents",
-  "Always emit __xray_typedevent(...) calls even if the containing function is not always instrumented">;
+  "Always emit __xray_typedevent(...) calls even if the containing function is not always instrumented", "", "", [], "LangOpts->XRayAlwaysEmitTypedEvents">;
 
 defm xray_ignore_loops : OptInFFlag<"xray-ignore-loops",
-  "Don't instrument functions with loops unless they also meet the minimum function size">;
+  "Don't instrument functions with loops unless they also meet the minimum function size", "", "", [], "CodeGenOpts.XRayIgnoreLoops">;
 defm xray_function_index : OptOutFFlag<"xray-function-index", "",
-  "Omit function index section at the expense of single-function patching performance">;
+  "Omit function index section at the expense of single-function patching performance", "", [], "CodeGenOpts.XRayOmitFunctionIndex">;
 
 def fxray_link_deps : Flag<["-"], "fxray-link-deps">, Group<f_Group>,
   Flags<[CC1Option]>,
diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index a9bc48f..2ea1027 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -245,6 +245,17 @@ static T extractMaskValue(T KeyPath) {
   return KeyPath & Value;
 }
 
+static void FixupInvocation(CompilerInvocation &Invocation) {
+  LangOptions &LangOpts = *Invocation.getLangOpts();
+  DiagnosticOptions &DiagOpts = Invocation.getDiagnosticOpts();
+  CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts();
+  CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument;
+  CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents;
+  CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents;
+
+  llvm::sys::Process::UseANSIEscapeCodes(DiagOpts.UseANSIEscapeCodes);
+}
+
 //===----------------------------------------------------------------------===//
 // Deserialization (from args)
 //===----------------------------------------------------------------------===//
@@ -1189,16 +1200,8 @@ static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
   Opts.InstrumentFunctionEntryBare =
       Args.hasArg(OPT_finstrument_function_entry_bare);
 
-  Opts.XRayInstrumentFunctions =
-      Args.hasArg(OPT_fxray_instrument);
-  Opts.XRayAlwaysEmitCustomEvents =
-      Args.hasArg(OPT_fxray_always_emit_customevents);
-  Opts.XRayAlwaysEmitTypedEvents =
-      Args.hasArg(OPT_fxray_always_emit_typedevents);
   Opts.XRayInstructionThreshold =
       getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags);
-  Opts.XRayIgnoreLoops = Args.hasArg(OPT_fxray_ignore_loops);
-  Opts.XRayOmitFunctionIndex = Args.hasArg(OPT_fno_xray_function_index);
   Opts.XRayTotalFunctionGroups =
       getLastArgIntValue(Args, OPT_fxray_function_groups, 1, Diags);
   Opts.XRaySelectedFunctionGroup =
@@ -3447,13 +3450,6 @@ static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
                                       systemBlacklists.begin(),
                                       systemBlacklists.end());
 
-  // -fxray-instrument
-  Opts.XRayInstrument = Args.hasArg(OPT_fxray_instrument);
-  Opts.XRayAlwaysEmitCustomEvents =
-      Args.hasArg(OPT_fxray_always_emit_customevents);
-  Opts.XRayAlwaysEmitTypedEvents =
-      Args.hasArg(OPT_fxray_always_emit_typedevents);
-
   // -fxray-{always,never}-instrument= filenames.
   Opts.XRayAlwaysInstrumentFiles =
       Args.getAllArgValues(OPT_fxray_always_instrument);
@@ -3827,9 +3823,7 @@ bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
   }
 
   Success &= Res.parseSimpleArgs(Args, Diags);
-
-  llvm::sys::Process::UseANSIEscapeCodes(
-      Res.DiagnosticOpts->UseANSIEscapeCodes);
+  FixupInvocation(Res);
 
   Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags);
   Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args);