Message ID | PAWPR08MB898242BAEF26D23A552AFACA83992@PAWPR08MB8982.eurprd08.prod.outlook.com |
---|---|
State | Committed |
Delegated to: | Adhemerval Zanella Netto |
Headers |
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Series |
[v2] math: Improve layout of expf data
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Checks
Context | Check | Description |
---|---|---|
redhat-pt-bot/TryBot-32bit | fail | Patch series failed to apply |
redhat-pt-bot/TryBot-apply_patch | fail | Patch failed to apply to master at the time it was sent |
Commit Message
Wilco Dijkstra
Sept. 9, 2024, 12:57 p.m. UTC
v2: Improve description GCC aligns global data to 16 bytes if their size is >= 16 bytes. This patch changes the exp2f_data struct slightly so that the fields are better aligned. As a result on targets that support them, load-pair instructions accessing poly_scaled and invln2_scaled are now 16-byte aligned. OK for commit? ---
Comments
On 09/09/24 09:57, Wilco Dijkstra wrote: > v2: Improve description > > GCC aligns global data to 16 bytes if their size is >= 16 bytes. This patch changes > the exp2f_data struct slightly so that the fields are better aligned. As a result on > targets that support them, load-pair instructions accessing poly_scaled and > invln2_scaled are now 16-byte aligned. > > OK for commit? LGTM, thanks. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> > > --- > > diff --git a/sysdeps/ieee754/flt-32/math_config.h b/sysdeps/ieee754/flt-32/math_config.h > index 729f22cd4f7dd9e44ce5e97fb6a399e29e37eb13..dc07ebd45977e5118a12c6bb7c738d646b0f7926 100644 > --- a/sysdeps/ieee754/flt-32/math_config.h > +++ b/sysdeps/ieee754/flt-32/math_config.h > @@ -166,9 +166,9 @@ extern const struct exp2f_data > uint64_t tab[1 << EXP2F_TABLE_BITS]; > double shift_scaled; > double poly[EXP2F_POLY_ORDER]; > - double shift; > double invln2_scaled; > double poly_scaled[EXP2F_POLY_ORDER]; > + double shift; > } __exp2f_data attribute_hidden; > > #define LOGF_TABLE_BITS 4
diff --git a/sysdeps/ieee754/flt-32/math_config.h b/sysdeps/ieee754/flt-32/math_config.h index 729f22cd4f7dd9e44ce5e97fb6a399e29e37eb13..dc07ebd45977e5118a12c6bb7c738d646b0f7926 100644 --- a/sysdeps/ieee754/flt-32/math_config.h +++ b/sysdeps/ieee754/flt-32/math_config.h @@ -166,9 +166,9 @@ extern const struct exp2f_data uint64_t tab[1 << EXP2F_TABLE_BITS]; double shift_scaled; double poly[EXP2F_POLY_ORDER]; - double shift; double invln2_scaled; double poly_scaled[EXP2F_POLY_ORDER]; + double shift; } __exp2f_data attribute_hidden; #define LOGF_TABLE_BITS 4