From: Martin Liska <mliska@suse.cz>
Date: Fri, 23 Sep 2016 07:57:07 +0000 (+0200)
Subject: Support crc32 as a i386 target optimization node
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=fab18cc4f7149a3b39d3b3055af03013f01ac554;p=gcc.git

Support crc32 as a i386 target optimization node

	* config/i386/i386.c (ix86_valid_target_attribute_inner_p):
	Handle crc32.
	* gcc.target/i386/crc32-5.c: New test.

From-SVN: r240393
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d3ba1c29810..ecf6811457f 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 crc32.
+
 2016-09-23  Martin Liska  <mliska@suse.cz>
 
 	PR target/71652
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 2dcd5699a70..b1aa727a69f 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 ("crc32",	OPT_mcrc32),
     IX86_ATTR_ISA ("sse",	OPT_msse),
     IX86_ATTR_ISA ("sse2",	OPT_msse2),
     IX86_ATTR_ISA ("sse3",	OPT_msse3),
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 6b6693efa94..80622c5805e 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2016-09-23  Martin Liska  <mliska@suse.cz>
+
+	* gcc.target/i386/crc32-5.c: New test.
+
 2016-09-23  Martin Liska  <mliska@suse.cz>
 
 	* gcc.target/i386/pr71652.c: New test.
diff --git a/gcc/testsuite/gcc.target/i386/crc32-5.c b/gcc/testsuite/gcc.target/i386/crc32-5.c
new file mode 100644
index 00000000000..a47f1e232b9
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/crc32-5.c
@@ -0,0 +1,25 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+/* { dg-final { scan-assembler "crc32b\[^\\n\]*eax" } } */
+/* { dg-final { scan-assembler "crc32w\[^\\n\]*eax" } } */
+/* { dg-final { scan-assembler "crc32l\[^\\n\]*eax" } } */
+
+#pragma GCC target ("crc32")
+
+unsigned int
+crc32b (unsigned int x, unsigned char y)
+{
+  return __builtin_ia32_crc32qi (x, y);
+}
+
+unsigned int
+crc32w (unsigned int x, unsigned short y)
+{
+  return __builtin_ia32_crc32hi (x, y);
+}
+
+unsigned int
+crc32d (unsigned int x, unsigned int y)
+{
+  return __builtin_ia32_crc32si (x, y);
+}