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| author | Dimitry Andric <dim@FreeBSD.org> | 2021-04-10 14:02:49 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2021-04-10 14:02:58 +0000 |
| commit | bae9fd0b33462e9506c3ac3400089c6dbc4aee8f (patch) | |
| tree | 9d69e44840acdc49483299283266668d7bac12fb | |
| parent | 63dceebe68569c3a7ebd07d0a6123264da625149 (diff) | |
| download | src-bae9fd0b33462e9506c3ac3400089c6dbc4aee8f.tar.gz src-bae9fd0b33462e9506c3ac3400089c6dbc4aee8f.zip | |
Only use -fp-exception-behavior=maytrap on x86, for now
After 3b00222f156d, it turns out that clang only supports strict
floating point semantics for SystemZ and x86 at the moment, while for
other architectures it is still experimental.
Therefore, only use -fp-exception-behavior=maytrap on x86 for now,
otherwise this option results in "error: overriding currently
unsupported use of floating point exceptions on this target
[-Werror,-Wunsupported-floating-point-opt]" on other architectures.
Fixes: 3b00222f156d
PR: 254911
MFC after: 1 week
| -rw-r--r-- | lib/msun/Makefile | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/msun/Makefile b/lib/msun/Makefile index 959dbd113ec1..0a486bb5a086 100644 --- a/lib/msun/Makefile +++ b/lib/msun/Makefile @@ -35,7 +35,8 @@ CFLAGS+= -I${.CURDIR}/ld128 CFLAGS+= -I${.CURDIR}/${ARCH_SUBDIR} .include <bsd.compiler.mk> -.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 100000 +.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 100000 && \ + (${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386") # When using clang with x86_64 CPUs that support AVX, some floating point # transformations may raise exceptions that would not have been raised by the # original code. To avoid this, use the -fp-exception-behavior=maytrap flag, |