Support clwb x86 instruction.

gcc/
	* common/config/i386/i386-common.c (OPTION_MASK_ISA_CLWB_UNSET,
	OPTION_MASK_ISA_CLWB_SET): New.
	(ix86_handle_option): Handle OPT_mclwb.
	* config.gcc: Add clwbintrin.h.
	* config/i386/clwbintrin.h: New file.
	* config/i386/cpuid.h (bit_CLWB): Define.
	* config/i386/driver-i386.c (host_detect_local_cpu): Detect clwb. 
	* config/i386/i386-c.c (ix86_target_macros_internal): Define
	__CLWB__.
	* config/i386/i386.c (ix86_target_string): Add -mclwb.
	(PTA_CLWB): Define.
	(ix86_option_override_internal): Handle new option.
	(ix86_valid_target_attribute_inner_p): Add clwb.
	(ix86_builtins): Add IX86_BUILTIN_CLWB.
	(ix86_init_mmx_sse_builtins): Add __builtin_ia32_clwb.
	(ix86_expand_builtin): Handle IX86_BUILTIN_CLWB.
	* config/i386/i386.h (TARGET_CLWB, TARGET_CLWB_P): Define.
	* config/i386/i386.md (unspecv): Add UNSPECV_CLWB.
	(clwb): New instruction.
	* config/i386/i386.opt: Add mclwb.
	* config/i386/x86intrin.h: Include clwbintrin.h.

gcc/testsuite/

	* g++.dg/other/i386-2.C: Add -mclwb.
	* g++.dg/other/i386-3.C: Ditto.
	* gcc.target/i386/clwb-1.c: New test.
	* gcc.target/i386/sse-12.c: Add new options.
	* gcc.target/i386/sse-13.c: Ditto.
	* gcc.target/i386/sse-14.c: Ditto.
	* gcc.target/i386/sse-22.c: Ditto.
	* gcc.target/i386/sse-23.c: Ditto.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@217933 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 49 insertions, 0 deletions

diff --git a/gcc/config/i386/clwbintrin.h b/gcc/config/i386/clwbintrin.h
new file mode 100644
index 00000000000..9020c955213
--- /dev/null
+++ b/gcc/config/i386/clwbintrin.h
@@ -0,0 +1,49 @@
+/* Copyright (C) 2013 Free Software Foundation, Inc.
+
+   This file is part of GCC.
+
+   GCC is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   GCC is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#if !defined _X86INTRIN_H_INCLUDED
+# error "Never use <clwbintrin.h> directly; include <x86intrin.h> instead."
+#endif
+
+#ifndef _CLWBINTRIN_H_INCLUDED
+#define _CLWBINTRIN_H_INCLUDED
+
+#ifndef __CLWB__
+#pragma GCC push_options
+#pragma GCC target("clwb")
+#define __DISABLE_CLWB__
+#endif /* __CLWB__ */
+
+extern __inline void
+__attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_clwb (void *__A)
+{
+  __builtin_ia32_clwb (__A);
+}
+
+#ifdef __DISABLE_CLWB__
+#undef __DISABLE_CLWB__
+#pragma GCC pop_options
+#endif /* __DISABLE_CLWB__ */
+
+#endif /* _CLWBINTRIN_H_INCLUDED */