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Improve quality of our ANSI C clock() function

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It now works most excellently across all supported operating
sytsems (earlier it didn't work on NT and XNU). Demo code is
available in examples/clock.c and this change also adds some
of the newer ANSI C time functions like timespec_get(), plus
timespec_getres() which hasn't even come out yet as it's C23
This commit is contained in:
Justine Tunney 2022-09-05 21:43:49 -07:00
parent 7ff0ea8c13
commit 12d9e1e128
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GPG key ID: BE714B4575D6E328
24 changed files with 254 additions and 76 deletions
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26
libc/intrin/emmintrin.internal.h
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@ -158,6 +158,9 @@ struct thatispacked mayalias __usi128ma {
#define _mm_srli_si128(M128I, IMM) \
((__m128i)__builtin_ia32_psrldqi128((__v2di)(__m128i)(M128I), (int)(IMM)*8))
#define _mm_cmpeq_epi8(a, b) ((__m128i)((__v16qi)(a) == (__v16qi)(b)))
#define _mm_movemask_epi8(a) __builtin_ia32_pmovmskb128((__v16qi)(a))
/*───────────────────────────────────────────────────────────────────────────│─╗
│ cosmopolitan § it's a trap! » sse2 » scalar ops ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/
@ -218,19 +221,18 @@ struct thatispacked mayalias __usi128ma {
#define _mm_cmpunord_sd(M128D_0, M128D_1) \
__builtin_ia32_cmpunordsd((__v2df)(M128D_0), (__v2df)(M128D_1))
#define _mm_SSE2(op, A, B) \
({ \
__m128i R = A; \
asm(#op " %1, %0" \
: "+x"(R) : "xm"(B)); \
R; \
#define _mm_SSE2(op, A, B) \
({ \
__m128i R = A; \
asm(#op " %1, %0" : "+x"(R) : "xm"(B)); \
R; \
})
#define _mm_mul_epu32(A, B) _mm_SSE2(pmuludq, A, B)
#define _mm_add_epi64(A, B) _mm_SSE2(paddq, A, B)
#define _mm_srli_epi64(A, B) _mm_SSE2(psrlq, A, B)
#define _mm_slli_epi64(A, B) _mm_SSE2(psllq, A, B)
#define _mm_unpacklo_epi64(A, B) _mm_SSE2(punpcklqdq, A, B)
#define _mm_unpackhi_epi64(A, B) _mm_SSE2(punpckhqdq, A, B)
#define _mm_mul_epu32(A, B) _mm_SSE2(pmuludq, A, B)
#define _mm_add_epi64(A, B) _mm_SSE2(paddq, A, B)
#define _mm_srli_epi64(A, B) _mm_SSE2(psrlq, A, B)
#define _mm_slli_epi64(A, B) _mm_SSE2(psllq, A, B)
#define _mm_unpacklo_epi64(A, B) _mm_SSE2(punpcklqdq, A, B)
#define _mm_unpackhi_epi64(A, B) _mm_SSE2(punpckhqdq, A, B)
/*───────────────────────────────────────────────────────────────────────────│─╗
│ cosmopolitan § it's a trap! » sse2 » miscellaneous ─╬─│┼