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Avoid partial register stall

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This commit is contained in:
Dmitry Stogov
2020-10-19 23:22:43 +03:00
parent bf321f0c14
commit fc2d477c5b
1 changed files with 6 additions and 0 deletions
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6
ext/opcache/jit/zend_jit_x86.dasc
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@@ -602,8 +602,10 @@ static void* dasm_labels[zend_lb_MAX];
| mov r0, lval
|.endif
|| if (JIT_G(opt_flags) & allowed_opt_flags & ZEND_JIT_CPU_AVX) {
| vxorps xmm(reg-ZREG_XMM0), xmm(reg-ZREG_XMM0), xmm(reg-ZREG_XMM0)
| vcvtsi2sd, xmm(reg-ZREG_XMM0), xmm(reg-ZREG_XMM0), r0
|| } else {
| xorps xmm(reg-ZREG_XMM0), xmm(reg-ZREG_XMM0)
| cvtsi2sd, xmm(reg-ZREG_XMM0), r0
|| }
|| }
@@ -614,14 +616,18 @@ static void* dasm_labels[zend_lb_MAX];
| SSE_GET_LONG reg, Z_LVAL_P(Z_ZV(addr))
|| } else if (Z_MODE(addr) == IS_MEM_ZVAL) {
|| if (JIT_G(opt_flags) & allowed_opt_flags & ZEND_JIT_CPU_AVX) {
| vxorps xmm(reg-ZREG_XMM0), xmm(reg-ZREG_XMM0), xmm(reg-ZREG_XMM0)
| vcvtsi2sd xmm(reg-ZREG_XMM0), xmm(reg-ZREG_XMM0), aword [Ra(Z_REG(addr))+Z_OFFSET(addr)]
|| } else {
| xorps xmm(reg-ZREG_XMM0), xmm(reg-ZREG_XMM0)
| cvtsi2sd xmm(reg-ZREG_XMM0), aword [Ra(Z_REG(addr))+Z_OFFSET(addr)]
|| }
|| } else if (Z_MODE(addr) == IS_REG) {
|| if (JIT_G(opt_flags) & allowed_opt_flags & ZEND_JIT_CPU_AVX) {
| vxorps xmm(reg-ZREG_XMM0), xmm(reg-ZREG_XMM0), xmm(reg-ZREG_XMM0)
| vcvtsi2sd xmm(reg-ZREG_XMM0), xmm(reg-ZREG_XMM0), Ra(Z_REG(addr))
|| } else {
| xorps xmm(reg-ZREG_XMM0), xmm(reg-ZREG_XMM0)
| cvtsi2sd xmm(reg-ZREG_XMM0), Ra(Z_REG(addr))
|| }
|| } else {