fmin and fmax should return the non-NaN argument in the case where
exactly one argument is a NaN.
Moreover, IEEE double fmin and fmax can be performed without
first converting the args to the internal representation and
then converting back again.
PR target/122177
libgcc/config/avr/libf7/
* libf7-common.mk (m_ddd): Remove: fmin, fmax.
(F7_ASM_PARTS): Add: D_fminfmax.
* libf7-asm.sx (D_fmanfmax): New module.
* f7-wraps.h: Rebuild.
gcc/testsuite/
* gcc.target/avr/fminfmax-1.c: New test.
(cherry picked from commit efb3cd64fd)
This supports __powidf2 by means of a double wrapper for already
existing f7_powi (renamed to __f7_powi by f7-renames.h).
It tweaks the implementation so that it does not perform trivial
multiplications with 1.0 any more, but instead uses a move.
It also fixes the last statement of f7_powi, which was wrong.
Notice that f7_powi was unused until now.
PR target/114981
libgcc/config/avr/libf7/
* libf7-common.mk (F7_ASM_PARTS): Add D_powi
* libf7-asm.sx (F7MOD_D_powi_, __powidf2): New module and function.
* libf7.c (f7_powi): Fix last (wrong) statement.
Tweak trivial multiplications with 1.0.
gcc/testsuite/
* gcc.target/avr/pr114981-powil.c: New test.
(cherry picked from commit de4eea7d7e)
libgcc/config/avr/libf7/
* libf7.h (F7_SIZEOF): New macro.
* libf7-asm.sx: Use F7_SIZEOF instead of magic number "10".
(F7MOD_D_fma_, __fma): New module and function.
(fma) [-mdouble=64]: Define as alias for __fma.
(fmal) [-mlong-double=64]: Define as alias for __fma.
* libf7-common.mk (F7_ASM_PARTS): Add D_fma.
this patch fixed PR target/99184 which incorrectly rounded during 64-bit
(long) double to 16-bit and 32-bit integers.
The patch just removes the respective roundings from
libf7-asm.sx::to_integer and ::to_unsigned. Luckily, LibF7 does nowhere
use respective functions internally, the only user is in libf7.c::f7_exp
which reads
f7_round (qq, qq);
int16_t q = f7_get_s16 (qq);
so that f7_get_s16() operates on an already rounded value, and therefore
this code works unaltered with or without rounding in to_integer.
PR target/99184
libgcc/config/avr/libf7/
* libf7-asm.sx (to_integer, to_unsigned): Don't round 16-bit
and 32-bit integers.
Georg-Johann Lay