From: Martin Liska <mliska@suse.cz>
Date: Fri, 23 Sep 2016 07:58:07 +0000 (+0200)
Subject: Support movbe as a i386 target optimization node
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1822b732a37e5bae7ea25619f1b8a80a23c491ca;p=gcc.git

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 ecf6811457f..2ecd31e2279 100644
--- 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 b1aa727a69f..143b905a341 100644
--- 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 80622c5805e..5db2a1c83c6 100644
--- 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
index 00000000000..906709167e1
--- /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 } } */