Fix #76767: ‘asm’ operand has impossible constraints in zend_operators.h

We disable assembly code with gcc 4.8 on i386.

Author: oerdnj

NEWS

@@ -3,6 +3,8 @@ PHP                                                                        NEWS
 ?? ??? ????, PHP 7.3.0beta3
 
 - Core:
+  . Fixed #76767 (‘asm’ operand has impossible constraints in zend_operators.h).
+    (ondrej)
   . Fixed bug #76754 (parent private constant in extends class memory leak).
     (Laruence)
   . Fixed bug #76752 (Crash in ZEND_COALESCE_SPEC_TMP_HANDLER - assertion in

Zend/zend_operators.h

@@ -471,7 +471,7 @@ ZEND_API void zend_update_current_locale(void);
 
 static zend_always_inline void fast_long_increment_function(zval *op1)
 {
-#if defined(HAVE_ASM_GOTO) && defined(__i386__)
+#if defined(HAVE_ASM_GOTO) && defined(__i386__) && !(4 == __GNUC__ && 8 == __GNUC_MINOR__)
 	__asm__ goto(
 		"addl $1,(%0)\n\t"
 		"jo  %l1\n"
@@ -521,7 +521,7 @@ overflow: ZEND_ATTRIBUTE_COLD_LABEL
 
 static zend_always_inline void fast_long_decrement_function(zval *op1)
 {
-#if defined(HAVE_ASM_GOTO) && defined(__i386__)
+#if defined(HAVE_ASM_GOTO) && defined(__i386__) && !(4 == __GNUC__ && 8 == __GNUC_MINOR__)
 	__asm__ goto(
 		"subl $1,(%0)\n\t"
 		"jo  %l1\n"
@@ -571,7 +571,7 @@ overflow: ZEND_ATTRIBUTE_COLD_LABEL
 
 static zend_always_inline void fast_long_add_function(zval *result, zval *op1, zval *op2)
 {
-#if defined(HAVE_ASM_GOTO) && defined(__i386__)
+#if defined(HAVE_ASM_GOTO) && defined(__i386__) && !(4 == __GNUC__ && 8 == __GNUC_MINOR__)
 	__asm__ goto(
 		"movl	(%1), %%eax\n\t"
 		"addl   (%2), %%eax\n\t"
@@ -661,7 +661,7 @@ static zend_always_inline int fast_add_function(zval *result, zval *op1, zval *o
 
 static zend_always_inline void fast_long_sub_function(zval *result, zval *op1, zval *op2)
 {
-#if defined(HAVE_ASM_GOTO) && defined(__i386__)
+#if defined(HAVE_ASM_GOTO) && defined(__i386__) && !(4 == __GNUC__ && 8 == __GNUC_MINOR__)
 	__asm__ goto(
 		"movl	(%1), %%eax\n\t"
 		"subl   (%2), %%eax\n\t"