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Add more libm unit tests and fixes

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See #61
This commit is contained in:
Justine Tunney 2021-03-02 13:57:23 -08:00
parent 32e289b1d8
commit 9367253b4d
15 changed files with 390 additions and 124 deletions
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22
libc/tinymath/trunc.S
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@ -17,7 +17,6 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/macros.internal.h"
.source __FILE__
// Rounds to integer, toward zero.
//
@ -28,17 +27,26 @@
// @see roundsd $_MM_FROUND_TO_ZERO|_MM_FROUND_NO_EXC,%xmm0,%xmm0
trunc: .leafprologue
.profilable
movsd 3f(%rip),%xmm1
movsd 2f(%rip),%xmm2
andpd %xmm0,%xmm1
comisd %xmm1,%xmm2
movsd 3f(%rip),%xmm2
movsd 2f(%rip),%xmm4
movapd %xmm0,%xmm3
movapd %xmm0,%xmm1
andpd %xmm2,%xmm3
ucomisd %xmm3,%xmm4
jbe 1f
cvttsd2siq %xmm0,%rax
pxor %xmm0,%xmm0
andnpd %xmm1,%xmm2
cvtsi2sdq %rax,%xmm0
orpd %xmm2,%xmm0
1: .leafepilogue
.endfn trunc,globl
.rodata.cst8
2: .quad 0x0010000000000000
3: .double nan
2: .long 0x00000000
.long 0x43300000
.rodata.cst16
3: .long 0xffffffff
.long 0x7fffffff
.long 0x00000000
.long 0x00000000