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| author | Szabolcs Nagy <nsz@port70.net> | 2018-12-01 01:09:01 +0000 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2019-04-17 23:45:40 -0400 |
| commit | e4dd65305a046019123ab34ebdcbe761a3a719ca (patch) | |
| tree | 292797b26ebc4794828c8f7fd46b9a7ef7374bc7 /src/internal | |
| parent | e16f7b3c02e17d0ace779a11f0d53a9c05fdd434 (diff) | |
| download | musl-e4dd65305a046019123ab34ebdcbe761a3a719ca.tar.gz | |
math: new pow
from https://github.com/ARM-software/optimized-routines,
commit 04884bd04eac4b251da4026900010ea7d8850edc
The underflow exception is signaled if the result is in the subnormal
range even if the result is exact.
code size change: +3421 bytes.
benchmark on x86_64 before, after, speedup:
-Os:
pow rthruput: 102.96 ns/call 33.38 ns/call 3.08x
pow latency: 144.37 ns/call 54.75 ns/call 2.64x
-O3:
pow rthruput: 98.91 ns/call 32.79 ns/call 3.02x
pow latency: 138.74 ns/call 53.78 ns/call 2.58x
Diffstat (limited to 'src/internal')
| -rw-r--r-- | src/internal/libm.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/internal/libm.h b/src/internal/libm.h index 9cd105fc..05f14e48 100644 --- a/src/internal/libm.h +++ b/src/internal/libm.h @@ -68,6 +68,7 @@ union ldshape { #error SNaN is unsupported #else #define issignalingf_inline(x) 0 +#define issignaling_inline(x) 0 #endif #ifndef TOINT_INTRINSICS |