@@ -6437,6 +6437,7 @@ ix86_valid_target_attribute_inner_p (tree args, char *p_strings[],
IX86_ATTR_ISA ("mmx", OPT_mmmx),
IX86_ATTR_ISA ("pclmul", OPT_mpclmul),
IX86_ATTR_ISA ("popcnt", OPT_mpopcnt),
+ IX86_ATTR_ISA ("movbe", OPT_mmovbe),
IX86_ATTR_ISA ("crc32", OPT_mcrc32),
IX86_ATTR_ISA ("sse", OPT_msse),
IX86_ATTR_ISA ("sse2", OPT_msse2),
new file mode 100644
@@ -0,0 +1,20 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+#pragma GCC target ("movbe")
+
+extern int x;
+
+void
+foo (int i)
+{
+ x = __builtin_bswap32 (i);
+}
+
+int
+bar ()
+{
+ return __builtin_bswap32 (x);
+}
+
+/* { dg-final { scan-assembler-times "movbe\[ \t\]" 2 } } */