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Make fixes, improvements, and chibicc python bindings

Browse source 
- python now mixes audio 10x faster
- python octal notation is restored
- chibicc now builds code 3x faster
- chibicc now has help documentation
- chibicc can now generate basic python bindings
- linenoise now supports some paredit-like features

See #141
This commit is contained in:
Justine Tunney 2021-10-08 08:11:51 -07:00
parent 28997f3acb
commit 7061c79c22
121 changed files with 5272 additions and 1928 deletions
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10
libc/intrin/bzero.c
View file

@ -18,6 +18,7 @@
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/assert.h"
#include "libc/dce.h"
#include "libc/intrin/asan.internal.h"
#include "libc/nexgen32e/nexgen32e.h"
#include "libc/nexgen32e/x86feature.h"
#include "libc/str/str.h"
@ -25,8 +26,9 @@
typedef char xmm_t __attribute__((__vector_size__(16), __aligned__(1)));
typedef long long xmm_a __attribute__((__vector_size__(16), __aligned__(16)));
static noinline antiquity void bzero_sse(char *p, size_t n) {
noasan static noinline antiquity void bzero_sse(char *p, size_t n) {
xmm_t v = {0};
if (IsAsan()) __asan_check(p, n);
if (n <= 32) {
*(xmm_t *)(p + n - 16) = v;
*(xmm_t *)p = v;
@ -41,12 +43,13 @@ static noinline antiquity void bzero_sse(char *p, size_t n) {
}
}
microarchitecture("avx") static void bzero_avx(char *p, size_t n) {
noasan microarchitecture("avx") static void bzero_avx(char *p, size_t n) {
xmm_t v = {0};
if (IsAsan()) __asan_check(p, n);
if (n <= 32) {
*(xmm_t *)(p + n - 16) = v;
*(xmm_t *)p = v;
} else if (!IsAsan() && n >= 1024 && X86_HAVE(ERMS)) {
} else if (n >= 1024 && X86_HAVE(ERMS)) {
asm("rep stosb" : "+D"(p), "+c"(n), "=m"(*(char(*)[n])p) : "a"(0));
} else {
if (n < kHalfCache3 || !kHalfCache3) {
@ -132,6 +135,7 @@ void(bzero)(void *p, size_t n) {
uint64_t x;
b = p;
if (IsTiny()) {
if (IsAsan()) __asan_check(p, n);
asm("rep stosb" : "+D"(b), "+c"(n), "=m"(*(char(*)[n])b) : "0"(p), "a"(0));
return;
}