try

Author: nielsdos

.github/actions/configure-macos/action.yml

@@ -18,6 +18,7 @@ runs:
         export PKG_CONFIG_PATH="$PKG_CONFIG_PATH:$BREW_OPT/libxslt/lib/pkgconfig"
         export PKG_CONFIG_PATH="$PKG_CONFIG_PATH:$BREW_OPT/zlib/lib/pkgconfig"
         export PKG_CONFIG_PATH="$PKG_CONFIG_PATH:$BREW_OPT/icu4c/lib/pkgconfig"
+        export CFLAGS="-fno-omit-frame-pointer"
         ./buildconf --force
         ./configure \
           --enable-option-checking=fatal \
@@ -28,7 +29,7 @@ runs:
           --enable-opcache \
           --enable-phar \
           --enable-exif \
-          --enable-undefined-sanitizer \
+          --enable-address-sanitizer \
           --enable-sysvsem \
           --enable-sysvshm \
           --enable-shmop \

Zend/zend_string.c

@@ -439,39 +439,7 @@ ZEND_API zend_never_inline NOIPA bool ZEND_FASTCALL zend_string_equal_val(const
 #elif defined(__GNUC__) && defined(__x86_64__) && !defined(__ILP32__)
 ZEND_API zend_never_inline NOIPA bool ZEND_FASTCALL zend_string_equal_val(const zend_string *s1, const zend_string *s2)
 {
-	const char *ptr = ZSTR_VAL(s1);
-	size_t delta = (const char*)s2 - (const char*)s1;
-	size_t len = ZSTR_LEN(s1);
-	zend_ulong ret;
-
-	__asm__ (
-		".LL0%=:\n\t"
-		"movq (%2,%3), %0\n\t"
-		"xorq (%2), %0\n\t"
-		"jne .LL1%=\n\t"
-		"addq $0x8, %2\n\t"
-		"subq $0x8, %1\n\t"
-		"ja .LL0%=\n\t"
-		"movq $0x1, %0\n\t"
-		"jmp .LL3%=\n\t"
-		".LL1%=:\n\t"
-		"cmpq $0x8,%1\n\t"
-		"jb .LL2%=\n\t"
-		"xorq %0, %0\n\t"
-		"jmp .LL3%=\n\t"
-		".LL2%=:\n\t"
-		"negq %1\n\t"
-		"lea 0x40(,%1,8), %1\n\t"
-		"shlq %b1, %0\n\t"
-		"sete %b0\n\t"
-		"movzbq %b0, %0\n\t"
-		".LL3%=:\n"
-		: "=&a"(ret),
-		  "+c"(len),
-		  "+r"(ptr)
-		: "r"(delta)
-		: "cc");
-	return ret;
+	return !memcmp(ZSTR_VAL(s1), ZSTR_VAL(s2), ZSTR_LEN(s1));
 }
 #endif
 

run-tests.php

@@ -3663,7 +3663,7 @@ public function __construct(array $environment, string $tool = 'memcheck')
 
     public function wrapCommand(string $cmd, string $memcheck_filename, bool $check_all): string
     {
-        $vcmd = "valgrind -q --tool={$this->tool} --trace-children=yes";
+        $vcmd = "valgrind --track-origins=yes -q --tool={$this->tool} --trace-children=yes";
         if ($check_all) {
             $vcmd .= ' --smc-check=all';
         }