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| author | Richard Biener <rguenther@suse.de> | 2023-01-13 08:57:12 +0100 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2023-01-27 15:46:30 +0100 |
| commit | b799acef461bcb78d77819dd27c8e4806177d841 (patch) | |
| tree | fbc9ba11f721382fd8256efc7ddd4da506f6f9a2 /gcc | |
| parent | 6cdb4d4bcd52c95cb6d367b93a82eb599d4e26f0 (diff) | |
| download | gcc-b799acef461bcb78d77819dd27c8e4806177d841.zip gcc-b799acef461bcb78d77819dd27c8e4806177d841.tar.gz gcc-b799acef461bcb78d77819dd27c8e4806177d841.tar.bz2 | |
Clarify -shared effect on crtfastmath.o
This rewords the note to not specifically mention crtfastmath.o
but FP environment altering by -ffast-math or -Ofast.
PR target/55522
* doc/invoke.texi (-shared): Clarify effect on -ffast-math
and -Ofast FP environment side-effects.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/doc/invoke.texi | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 06d7798..a371cd9 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -17696,8 +17696,9 @@ needs to build supplementary stub code for constructors to work. On multi-libbed systems, @samp{gcc -shared} must select the correct support libraries to link against. Failing to supply the correct flags may lead to subtle defects. Supplying them in cases where they are not necessary -is innocuous. For x86, crtfastmath.o will not be added when -@option{-shared} is specified. } +is innocuous. @option{-shared} suppresses the addition of startup code +to alter the floating-point environment as done with @option{-ffast-math}, +@option{-Ofast} or @option{-funsafe-math-optimizations} on some targets.} @item -shared-libgcc @itemx -static-libgcc |