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x86-64: Disable libmvec ABI test for Clang

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Unlike GCC, libmvec support in Clang is hard-coded.  Clang doesn't use
macros defined in <bits/libm-simd-decl-stubs.h> to support new libmvec
functions added to glibc and can't vectorize all test loops to test
libmvec ABI:

https://github.com/llvm/llvm-project/issues/120868

disable libmvec ABI test for Clang.

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Sam James <sam@gentoo.org>
This commit is contained in:
H.J. Lu 2024-12-16 05:11:26 +08:00
parent b2ec6f72b8
commit 9151ecbb5e
1 changed files with 4 additions and 0 deletions
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4
sysdeps/x86_64/fpu/Makefile
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@ -28,6 +28,9 @@ endif
ifneq ($(multi-arch),no)
# Variables for libmvec tests.
ifeq ($(subdir)$(build-mathvec),mathyes)
ifneq ($(have-test-clang),yes)
# Clang 19 can't vectorize all test loops to test libmvec ABI:
# https://github.com/llvm/llvm-project/issues/120868
libmvec-tests += double-vlen2 double-vlen4 double-vlen4-avx2 \
float-vlen4 float-vlen8 float-vlen8-avx2 \
double-vlen8 float-vlen16
@ -36,6 +39,7 @@ tests += \
$(libmvec-abi-func-avx-tests) \
$(libmvec-abi-func-avx2-tests) \
$(libmvec-abi-func-avx512f-tests)
endif
double-vlen2-funcs = $(libmvec-funcs)
double-vlen4-funcs = $(libmvec-funcs)