Support movbe as a i386 target optimization node

	* gcc.target/i386/movbe-4.c: New test.
	* config/i386/i386.c (ix86_valid_target_attribute_inner_p):
	Handle movbe.

From-SVN: r240394

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ecf6811457f7252a168b8c4cd2d64edfc68e180d..2ecd31e22796d14a478668911fe6c0739e8fa23d 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2016-09-23  Martin Liska  <mliska@suse.cz>
+
+       * config/i386/i386.c (ix86_valid_target_attribute_inner_p):
+       Handle movbe.
+
 2016-09-23  Martin Liska  <mliska@suse.cz>
 
        * config/i386/i386.c (ix86_valid_target_attribute_inner_p):

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index b1aa727a69f3ff44ded7ff35c60a67a6421a06c5..143b905a3419b94f7f5e640d5605b0369ca6d21b 100644 (file)
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -6526,6 +6526,7 @@ 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),

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 80622c5805e9c224d67863f63525b3264bc69f5a..5db2a1c83c6b499cee82d2ce39ea1fa298922b10 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2016-09-23  Martin Liska  <mliska@suse.cz>
+
+       * gcc.target/i386/movbe-4.c: New test.
+
 2016-09-23  Martin Liska  <mliska@suse.cz>
 
        * gcc.target/i386/crc32-5.c: New test.

diff --git a/gcc/testsuite/gcc.target/i386/movbe-4.c b/gcc/testsuite/gcc.target/i386/movbe-4.c
new file mode 100644 (file)
index 0000000..9067091
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/movbe-4.c
@@ -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 } } */