mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-05-28 00:02:28 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Further optimize the math library

Browse source 
The sincosf() function is now twice as fast, thanks to ARM Limited. The
same might also be true of logf() and expm1f() which have been updated.
This commit is contained in:
Justine Tunney 2023-04-28 01:17:28 -07:00
parent e8b43903b2
commit 420f889ac3
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
22 changed files with 854 additions and 118 deletions
Download patch file Download diff file Expand all files Collapse all files

20
libc/tinymath/logf_data.internal.h Normal file
View file

@ -0,0 +1,20 @@
#ifndef COSMOPOLITAN_LIBC_TINYMATH_LOGF_DATA_INTERNAL_H_
#define COSMOPOLITAN_LIBC_TINYMATH_LOGF_DATA_INTERNAL_H_
#define LOGF_TABLE_BITS 4
#define LOGF_POLY_ORDER 4
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
extern _Hide const struct logf_data {
struct {
double invc, logc;
} tab[1 << LOGF_TABLE_BITS];
double ln2;
double poly[LOGF_POLY_ORDER - 1]; /* First order coefficient is 1. */
} __logf_data;
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_TINYMATH_LOGF_DATA_INTERNAL_H_ */