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 d3ba1c2981040022b351f0f141c4a5a2769ba76a..ecf6811457f7252a168b8c4cd2d64edfc68e180d 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 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 2dcd5699a7021c8dee0ee1d52a7bdc7766b1092c..b1aa727a69f3ff44ded7ff35c60a67a6421a06c5 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 ("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 6b6693efa943acc4e19042db8922c06077fbb477..80622c5805e9c224d67863f63525b3264bc69f5a 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/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 (file)
index 0000000..a47f1e2
--- /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);
+}