[llvm-branch-commits] [clang] release/19.x: [Driver] Restrict Ofast deprecation help message to Clang (#101682) (PR #101963)

[via llvm-branch-commits]

https://github.com/llvmbot created https://github.com/llvm/llvm-project/pull/101963

Backport e60ee1f

Requested by: @kiranchandramohan

>From f4e81a5e3db7f1f4a7042b0c7c17a614e0563f92 Mon Sep 17 00:00:00 2001
From: Kiran Chandramohan <kiran.chandramohan at arm.com>
Date: Mon, 5 Aug 2024 12:43:37 +0100
Subject: [PATCH] [Driver] Restrict Ofast deprecation help message to Clang
 (#101682)

The discussion about this in Flang
(https://discourse.llvm.org/t/rfc-deprecate-ofast-in-flang/80243) has
not concluded hence restricting the deprecation only to Clang.

(cherry picked from commit e60ee1f2d70bdb0ac87b09ae685d669d8543b7bd)
---
 clang/include/clang/Driver/Options.td | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td
index 359a698ea87dd..014a2bd85fdc6 100644
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -932,8 +932,9 @@ def O_flag : Flag<["-"], "O">, Visibility<[ClangOption, CC1Option, FC1Option]>,
   Alias<O>, AliasArgs<["1"]>;
 def Ofast : Joined<["-"], "Ofast">, Group<O_Group>,
   Visibility<[ClangOption, CC1Option, FlangOption]>,
-  HelpText<"Deprecated; use '-O3 -ffast-math' for the same behavior,"
-  " or '-O3' to enable only conforming optimizations">;
+  HelpTextForVariants<[ClangOption, CC1Option],
+                      "Deprecated; use '-O3 -ffast-math' for the same behavior,"
+                      " or '-O3' to enable only conforming optimizations">;
 def P : Flag<["-"], "P">,
   Visibility<[ClangOption, CC1Option, FlangOption, FC1Option]>,
   Group<Preprocessor_Group>,