[clang] [NFC][clang][Driver] Specify options for <arg> with -save-temps=<arg> (PR #80921)

[Jacob Lambert via cfe-commits]

https://github.com/lamb-j created https://github.com/llvm/llvm-project/pull/80921

None

>From 9f021f6d2b99ae73c47313ddc6043ab2af926f23 Mon Sep 17 00:00:00 2001
From: Jacob Lambert <jacob.lambert at amd.com>
Date: Tue, 6 Feb 2024 17:57:12 -0800
Subject: [PATCH] [NFC][clang][Driver] Specify options for <arg> with
 -save-temps=<arg>

---
 clang/include/clang/Driver/Options.td | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td
index 4b232b8aab722a..6b13530799e102 100644
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -5392,7 +5392,9 @@ def regcall4 : Flag<["-"], "regcall4">, Group<m_Group>,
   MarshallingInfoFlag<LangOpts<"RegCall4">>;
 def save_temps_EQ : Joined<["-", "--"], "save-temps=">, Flags<[NoXarchOption]>,
   Visibility<[ClangOption, CC1Option, FlangOption, FC1Option]>,
-  HelpText<"Save intermediate compilation results.">;
+  HelpText<"Save intermediate compilation results. The <arg> option can be set "
+  "to cwd for current working directory, or obj which will save temporary "
+  "files in the same directory as the final output file">;
 def save_temps : Flag<["-", "--"], "save-temps">, Flags<[NoXarchOption]>,
   Visibility<[ClangOption, FlangOption, FC1Option]>,
   Alias<save_temps_EQ>, AliasArgs<["cwd"]>,