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Make improvements

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- Introduce portable sched_getcpu() api
- Support GCC's __target_clones__ feature
- Make fma() go faster on x86 in default mode
- Remove some asan checks from core libraries
- WinMain() now ensures $HOME and $USER are defined
This commit is contained in:
Justine Tunney 2024-02-01 03:39:46 -08:00
parent d5225a693b
commit 2ab9e9f7fd
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GPG key ID: BE714B4575D6E328
192 changed files with 2809 additions and 932 deletions
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7
libc/str/rawmemchr.c
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@ -18,7 +18,6 @@
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/assert.h"
#include "libc/dce.h"
#include "libc/intrin/asan.internal.h"
#include "libc/nexgen32e/x86feature.h"
#include "libc/str/str.h"
@ -33,8 +32,7 @@ static inline const unsigned char *rawmemchr_pure(const unsigned char *s,
#if defined(__x86_64__) && !defined(__chibicc__)
typedef char xmm_t __attribute__((__vector_size__(16), __aligned__(16)));
static inline const char *rawmemchr_sse(const char *s,
unsigned char c) {
static inline const char *rawmemchr_sse(const char *s, unsigned char c) {
unsigned k;
unsigned m;
const xmm_t *p;
@ -67,11 +65,10 @@ static inline uint64_t UncheckedAlignedRead64(const unsigned char *p) {
* @param c is search byte which is masked with 255
* @return is pointer to first instance of c
*/
void *rawmemchr(const void *s, int c) {
__vex void *rawmemchr(const void *s, int c) {
#if defined(__x86_64__) && !defined(__chibicc__)
const void *r;
if (X86_HAVE(SSE)) {
if (IsAsan()) __asan_verify(s, 1);
r = rawmemchr_sse(s, c);
} else {
r = rawmemchr_pure(s, c);