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fallback to pure C emulation when LSX is not supported by processor #1

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Merged
luzeng87 merged 1 commit into from
May 29, 2026
+5 −0
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fallback to pure C emulation when LSX is not supported by processor #1

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5 changes: 5 additions & 0 deletions src/emu/sigill_hook.c
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,7 @@
#include <string.h>
#include <unistd.h>
#include "lasx_interpret.h"
#include <larchintrin.h>

int use_lsx_intrinsics;
#ifdef LASX_PROFILE
Expand Down Expand Up @@ -121,6 +122,10 @@ __attribute__((constructor)) void register_sigill_handler(void) {
if (env && atoi(env) != 0) {
use_lsx_intrinsics = 0;
}
const bool has_lsx = __cpucfg(2) & 0b01000000;
if (!has_lsx) {
use_lsx_intrinsics = 0;
}
// 初始化性能统计
perf_stats_init();

Expand Down