[clang] 3b48613 - [docs] [C++20] [Modules] Mark the compatiblity issue within clang-cl.exe

[Chuanqi Xu via cfe-commits]

Author: Chuanqi Xu
Date: 2023-07-26T15:06:13+08:00
New Revision: 3b48613f2d90bde544669437c20fcdeb01316411

URL: https://github.com/llvm/llvm-project/commit/3b48613f2d90bde544669437c20fcdeb01316411
DIFF: https://github.com/llvm/llvm-project/commit/3b48613f2d90bde544669437c20fcdeb01316411.diff

LOG: [docs] [C++20] [Modules] Mark the compatiblity issue within clang-cl.exe

See
https://discourse.llvm.org/t/clang-cl-exe-support-for-c-modules/72257
for details. Simply, the user of clang-cl.exe can't get a good
experience with C++20 modules now. While we don't have resources to
support it well now, we should make it clear in the documentation.

Added: 
    

Modified: 
    clang/docs/StandardCPlusPlusModules.rst

Removed: 
    


################################################################################
diff  --git a/clang/docs/StandardCPlusPlusModules.rst b/clang/docs/StandardCPlusPlusModules.rst
index 51f67318501153..06609063c61c96 100644
--- a/clang/docs/StandardCPlusPlusModules.rst
+++ b/clang/docs/StandardCPlusPlusModules.rst
@@ -688,6 +688,14 @@ Currently, clang requires the file name of an ``importable module unit`` should
 
 This is tracked in: https://github.com/llvm/llvm-project/issues/57416
 
+clang-cl is not compatible with the standard C++ modules
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Now we can't use the `/clang:-fmodule-file` or `/clang:-fprebuilt-module-path` to specify
+the BMI within ``clang-cl.exe``.
+
+This is tracked in: https://github.com/llvm/llvm-project/issues/64118
+
 Header Units
 ============