Fixed possible incorrect register usage

diff --git a/ext/opcache/jit/zend_jit_x86.dasc b/ext/opcache/jit/zend_jit_x86.dasc
index 09143b21197fd75851bdbd35212101e002efedb1..eab4293a7d61de07a890d78fe0fe1570ccc4940f 100644 (file)
--- a/ext/opcache/jit/zend_jit_x86.dasc
+++ b/ext/opcache/jit/zend_jit_x86.dasc
@@ -4797,7 +4797,12 @@ static int zend_jit_long_math_helper(dasm_State    **Dst,
        if (opcode == ZEND_MOD) {
                result_reg = ZREG_RAX;
        } else if (Z_MODE(res_addr) == IS_REG) {
-               result_reg = Z_REG(res_addr);
+               if ((opline->opcode == ZEND_SL || opline->opcode == ZEND_SR)
+                && opline->op2_type != IS_CONST) {
+                       result_reg = ZREG_R0;
+               } else {
+                       result_reg = Z_REG(res_addr);
+               }
        } else if (Z_MODE(op1_addr) == IS_REG && Z_LAST_USE(op1_addr)) {
                result_reg = Z_REG(op1_addr);
        } else if (Z_REG(res_addr) != ZREG_R0) {