libs/newlib-cygwin
libs/newlib-cygwin
4
0
Fork 0
mirror of git://sourceware.org/git/newlib-cygwin.git synced 2025-02-08 18:19:08 +08:00
Code Issues Projects Releases Wiki Activity

libm: ARM without HW double does not have fast FMA

Browse Source 
32-bit ARM processors with HW float (but not HW double) may define
__ARM_FEATURE_FMA, but that only means they have fast FMA for 32-bit
floats.

Signed-off-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Keith Packard via Newlib 2020-08-08 15:34:11 -07:00 committed by Ken Brown
parent cf3c0c19b3
commit 7e690708b4
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
newlib/libm/common/math_config.h
View File

@ -72,7 +72,7 @@
/* Compiler can inline fma as a single instruction. */
#ifndef HAVE_FAST_FMA
# if __aarch64__ || __ARM_FEATURE_FMA
# if __aarch64__ || (__ARM_FEATURE_FMA && (__ARM_FP & 8))
# define HAVE_FAST_FMA 1
# else
# define HAVE_FAST_FMA 0