[clang] eb05e8f - [clang] [docs] Clarify the issue with compiler-rt on Windows/MSVC (#106875)

[via cfe-commits]

Author: Martin Storsjö
Date: 2024-09-03T22:45:11+03:00
New Revision: eb05e8fde1ebc4cda2106b1236620a8a89b36b7c

URL: https://github.com/llvm/llvm-project/commit/eb05e8fde1ebc4cda2106b1236620a8a89b36b7c
DIFF: https://github.com/llvm/llvm-project/commit/eb05e8fde1ebc4cda2106b1236620a8a89b36b7c.diff

LOG: [clang] [docs] Clarify the issue with compiler-rt on Windows/MSVC (#106875)

Compiler-rt does support Windows just fine, even if outdated docs pages
didn't list it as one of the supported OSes, this is being rectified in
https://github.com/llvm/llvm-project/pull/106874.

MinGW is another environment configuration on Windows, where compiler-rt
or libgcc is linked in automatically, so there's no issue with having
such builtins functions available.

For MSVC style environments, compiler-rt builtins do work just fine, but
Clang doesn't automatically link them in. See e.g.
https://discourse.llvm.org/t/improve-autolinking-of-compiler-rt-and-libc-on-windows-with-lld-link/71392
for a discussion on how to improve this situation. But none of that
issue is that compiler-rt itself wouldn't support Windows.

Added: 
    

Modified: 
    clang/www/c_status.html

Removed: 
    


################################################################################
diff  --git a/clang/www/c_status.html b/clang/www/c_status.html
index 91638331be877a..255690cd6d34e2 100644
--- a/clang/www/c_status.html
+++ b/clang/www/c_status.html
@@ -1057,8 +1057,8 @@ <h2 id="c99">C99 implementation status</h2>
           conformance to Annex G.<br />
           <br />
           <code>_Complex</code> support requires an underlying support library
-          such as compiler-rt to provide functions like <code>__divsc3</code>,
-          but compiler-rt is not supported on Windows.
+          such as compiler-rt to provide functions like <code>__divsc3</code>.
+          Compiler-rt isn't linked in automatically in MSVC style environments.
         </details>
       </td>
     </tr>