https://github.com/mstorsjo created https://github.com/llvm/llvm-project/pull/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Compiler-rt does support Windows just fine, even if outdated docs pages didn't list it as one of the supported OSes, this is being rectified in https://github.com/llvm/llvm-project/pull/106874.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. From 9ff3b1526e8b43b4d5856983340b8641b74ba3cb Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Martin=20Storsj=C3=B6?= <mar...@martin.st> Date: Sun, 1 Sep 2024 00:55:25 +0300 Subject: [PATCH] [clang] [docs] Clarify the issue with compiler-rt on Windows/MSVC Compiler-rt does support Windows just fine, even if outdated docs pages didn't list it as one of the supported OSes, this is being rectified in https://github.com/llvm/llvm-project/pull/106874.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. --- clang/www/c_status.html | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) 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> _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
