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Use ARM's faster math functions on non-tiny builds

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This commit is contained in:
Justine Tunney 2022-07-11 18:34:10 -07:00
parent 3c10fb5580
commit 4814b6bdf8
58 changed files with 3760 additions and 361 deletions
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10
test/libc/tinymath/exp_test.c
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@ -19,6 +19,7 @@
#include "libc/math.h"
#include "libc/runtime/gc.internal.h"
#include "libc/stdio/stdio.h"
#include "libc/testlib/ezbench.h"
#include "libc/testlib/testlib.h"
#include "libc/x/x.h"
@ -61,3 +62,12 @@ TEST(exp, fun) {
ASSERT_STREQ("6.389056", gc(xasprintf("%f", expm1(2.0))));
ASSERT_STREQ("6.389056", gc(xasprintf("%f", exp(2.0) - 1.0)));
}
BENCH(expl, bench) {
double _exp(double) asm("exp");
float _expf(float) asm("expf");
long double _expl(long double) asm("expl");
EZBENCH2("exp", donothing, _exp(.7)); /* ~6ns */
EZBENCH2("expf", donothing, _expf(.7)); /* ~5ns */
EZBENCH2("expl", donothing, _expl(.7)); /* ~20ns */
}