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1b214630ce
On Skylake, it improves expm1 bench performance by:
Before After Improvement
max 70.204 68.054 3%
min 20.709 16.2 22%
mean 22.1221 16.7367 24%
NB: Add
extern long double __expm1l (long double);
extern long double __expm1f128 (long double);
for __typeof (__expm1l) and __typeof (__expm1f128) when __expm1 is
defined since __expm1 may be expanded in their declarations which
causes the build failure.
11 lines
302 B
C
11 lines
302 B
C
#define __expm1 __expm1_fma
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/* NB: __expm1 may be expanded to __expm1_fma in the following
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prototypes. */
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extern long double __expm1l (long double);
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extern long double __expm1f128 (long double);
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#define SECTION __attribute__ ((section (".text.fma")))
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#include <sysdeps/ieee754/dbl-64/s_expm1.c>
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