[libcxx-commits] [libcxx] 1d34025 - [libc++][PSTL] Disable `-Wpass-failed`.

[Konstantin Varlamov via libcxx-commits]

Author: Konstantin Varlamov
Date: 2023-08-04T15:11:36-07:00
New Revision: 1d340250a894b6ec956e2145b2fc7babbf83e61b

URL: https://github.com/llvm/llvm-project/commit/1d340250a894b6ec956e2145b2fc7babbf83e61b
DIFF: https://github.com/llvm/llvm-project/commit/1d340250a894b6ec956e2145b2fc7babbf83e61b.diff

LOG: [libc++][PSTL] Disable `-Wpass-failed`.

PSTL contains many pragmas that request loop vectorization, which would
produce a warning when the compiler is unable to fulfill the request (if
`-Wpass-failed` is enabled). This is normal and expected in some cases,
and we don't want `-Werror` to turn that into a compilation failure.

Differential Revision: https://reviews.llvm.org/D157145

Added: 
    

Modified: 
    libcxx/utils/libcxx/test/params.py

Removed: 
    


################################################################################
diff  --git a/libcxx/utils/libcxx/test/params.py b/libcxx/utils/libcxx/test/params.py
index 0712bb41907fbc..a505096f6bb753 100644
--- a/libcxx/utils/libcxx/test/params.py
+++ b/libcxx/utils/libcxx/test/params.py
@@ -54,6 +54,9 @@
 
     # TODO(philnik) This fails with the PSTL.
     "-Wno-unknown-pragmas",
+    # Don't fail compilation in case the compiler fails to perform the requested
+    # loop vectorization.
+    "-Wno-pass-failed",
 ]
 
 _allStandards = ["c++03", "c++11", "c++14", "c++17", "c++20", "c++23", "c++26"]