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Patch up gb.h

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This commit is contained in:
gingerBill
2020-11-24 15:18:20 +00:00
parent 776c3f4e90
commit 9c1c9693f2
2 changed files with 27 additions and 2 deletions
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23
src/gb/gb.h
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@@ -4639,7 +4639,11 @@ gb_inline void gb_yield_thread(void) {
#if defined(GB_SYSTEM_WINDOWS)
_mm_pause();
#elif defined(GB_SYSTEM_OSX)
#if defined(GB_CPU_X86)
__asm__ volatile ("" : : : "memory");
#elif defined(GB_CPU_ARM)
__asm__ volatile ("yield" : : : "memory");
#endif
#elif defined(GB_CPU_X86)
_mm_pause();
#else
@@ -4651,7 +4655,11 @@ gb_inline void gb_mfence(void) {
#if defined(GB_SYSTEM_WINDOWS)
_ReadWriteBarrier();
#elif defined(GB_SYSTEM_OSX)
#if defined(GB_CPU_X86)
__sync_synchronize();
#elif defined(GB_CPU_ARM)
__atomic_thread_fence(__ATOMIC_SEQ_CST);
#endif
#elif defined(GB_CPU_X86)
_mm_mfence();
#else
@@ -4663,7 +4671,12 @@ gb_inline void gb_sfence(void) {
#if defined(GB_SYSTEM_WINDOWS)
_WriteBarrier();
#elif defined(GB_SYSTEM_OSX)
#if defined(GB_CPU_X86)
__asm__ volatile ("" : : : "memory");
#elif defined(GB_CPU_ARM)
// TODO(bill): is this correct?
__atomic_thread_fence(__ATOMIC_SEQ_CST);
#endif
#elif defined(GB_CPU_X86)
_mm_sfence();
#else
@@ -5278,7 +5291,7 @@ void gb_affinity_init(gbAffinity *a) {
for (;;) {
// The 'temporary char'. Everything goes into this char,
// so that we can check against EOF at the end of this loop.
char c;
int c;
#define AF__CHECK(letter) ((c = getc(cpu_info)) == letter)
if (AF__CHECK('c') && AF__CHECK('p') && AF__CHECK('u') && AF__CHECK(' ') &&
@@ -8884,6 +8897,14 @@ gb_inline gbDllProc gb_dll_proc_address(gbDllHandle dll, char const *proc_name)
return result;
}
#elif defined(__aarch64__)
gb_inline u64 gb_rdtsc(void) {
int64_t virtual_timer_value;
asm volatile("mrs %0, cntvct_el0" : "=r"(virtual_timer_value));
return virtual_timer_value;
}
#else
#error "gb_rdtsc not supported"
#endif
#if defined(GB_SYSTEM_WINDOWS)

6
src/ir_print.cpp
View File

@@ -1575,7 +1575,11 @@ void ir_print_instr(irFileBuffer *f, irModule *m, irValue *value) {
break;
case BuiltinProc_cpu_relax:
ir_write_str_lit(f, "call void asm sideeffect \"pause\", \"\"()");
if (build_context.metrics.arch == TargetArch_amd64) {
ir_write_str_lit(f, "call void asm sideeffect \"pause\", \"\"()");
} else {
// ir_write_str_lit(f, "call void asm sideeffect \"yield\", \"\"()");
}
break;
default: GB_PANIC("Unknown inline code %d", instr->InlineCode.id); break;
}