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| author | Uros Bizjak <ubizjak@gmail.com> | 2023-02-27 22:10:01 +0100 |
|---|---|---|
| committer | Uros Bizjak <ubizjak@gmail.com> | 2023-02-27 22:10:01 +0100 |
| commit | 8020c9c42349f51f75239b9d35a2be41848a97bd (patch) | |
| tree | 79b76fd7234177800d5fd7959bf7d37f0c82b282 /libgfortran/generated/spread_r17.c | |
| parent | ab76d71179be6e4e09ee3d5b7e8fa4265717a34c (diff) | |
| download | gcc-8020c9c42349f51f75239b9d35a2be41848a97bd.zip gcc-8020c9c42349f51f75239b9d35a2be41848a97bd.tar.gz gcc-8020c9c42349f51f75239b9d35a2be41848a97bd.tar.bz2 | |
i386: Do not constrain fmod and remainder patterns with flag_finite_math_only [PR108922]
According to Intel ISA manual, fprem and fprem1 return NaN when invalid
arithmetic exception is generated. This is documented in Table 8-10 of the
ISA manual and makes these two instructions fully IEEE compatible.
The reverted patch was based on the data from table 3-30 and 3-31 of the
Intel ISA manual, where results in case of st(0) being infinity or
st(1) being 0 are not specified.
2023-02-27 Uroš Bizjak <ubizjak@gmail.com>
gcc/ChangeLog:
PR target/108922
Revert:
* config/i386/i386.md (fmodxf3): Enable for flag_finite_math_only only.
(fmod<mode>3): Ditto.
(fpremxf4_i387): Ditto.
(reminderxf3): Ditto.
(reminder<mode>3): Ditto.
(fprem1xf4_i387): Ditto.
Diffstat (limited to 'libgfortran/generated/spread_r17.c')
0 files changed, 0 insertions, 0 deletions