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PATCH: Support BMI, BMI2 and LZCNT in <immintrin.h>

From: "H.J. Lu" <hongjiu dot lu at intel dot com>
To: gcc-patches at gcc dot gnu dot org
Cc: Yukhin Kirill <kirill dot yukhin at intel dot com>, Uros Bizjak <ubizjak at gmail dot com>
Date: Thu, 25 Aug 2011 16:11:52 -0700
Subject: PATCH: Support BMI, BMI2 and LZCNT in <immintrin.h>
Reply-to: "H.J. Lu" <hjl dot tools at gmail dot com>

Hi,

<immintrin.h> should support all Intel intrinsics.  This patch adds
BMI, BMI2 and LZCNT support to <immintrin.h>.  OK for trunk?

Thanks.


H.J.
---
2011-08-25  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/bmi2intrin.h: Allow in <immintrin.h>.
	* config/i386/bmiintrin.h: Likewise.
	* config/i386/lzcntintrin.h: Likewise.

	* config/i386/immintrin.h: Include <lzcntintrin.h>,
	<bmiintrin.h> and <bmi2intrin.h>.

diff --git a/gcc/config/i386/bmi2intrin.h b/gcc/config/i386/bmi2intrin.h
index f3ffa52..a72c9a9 100644
--- a/gcc/config/i386/bmi2intrin.h
+++ b/gcc/config/i386/bmi2intrin.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2010, 2011 Free Software Foundation, Inc.
+/* Copyright (C) 2011 Free Software Foundation, Inc.
 
    This file is part of GCC.
 
@@ -21,7 +21,7 @@
    see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
    <http://www.gnu.org/licenses/>.  */
 
-#ifndef _X86INTRIN_H_INCLUDED
+#if !defined _X86INTRIN_H_INCLUDED && !defined _IMMINTRIN_H_INCLUDED
 # error "Never use <bmi2intrin.h> directly; include <x86intrin.h> instead."
 #endif
 
diff --git a/gcc/config/i386/bmiintrin.h b/gcc/config/i386/bmiintrin.h
index 1699c61..af5d9dc 100644
--- a/gcc/config/i386/bmiintrin.h
+++ b/gcc/config/i386/bmiintrin.h
@@ -21,7 +21,7 @@
    see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
    <http://www.gnu.org/licenses/>.  */
 
-#ifndef _X86INTRIN_H_INCLUDED
+#if !defined _X86INTRIN_H_INCLUDED && !defined _IMMINTRIN_H_INCLUDED
 # error "Never use <bmiintrin.h> directly; include <x86intrin.h> instead."
 #endif
 
diff --git a/gcc/config/i386/immintrin.h b/gcc/config/i386/immintrin.h
index 3704df7..d2e715f 100644
--- a/gcc/config/i386/immintrin.h
+++ b/gcc/config/i386/immintrin.h
@@ -60,6 +60,18 @@
 #include <avx2intrin.h>
 #endif
 
+#ifdef __LZCNT__
+#include <lzcntintrin.h>
+#endif
+
+#ifdef __BMI__
+#include <bmiintrin.h>
+#endif
+
+#ifdef __BMI2__
+#include <bmi2intrin.h>
+#endif
+
 #ifdef __RDRND__
 extern __inline int
 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
diff --git a/gcc/config/i386/lzcntintrin.h b/gcc/config/i386/lzcntintrin.h
index 8df01d2..31db7dc 100644
--- a/gcc/config/i386/lzcntintrin.h
+++ b/gcc/config/i386/lzcntintrin.h
@@ -21,7 +21,7 @@
    see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
    <http://www.gnu.org/licenses/>.  */
 
-#ifndef _X86INTRIN_H_INCLUDED
+#if !defined _X86INTRIN_H_INCLUDED && !defined _IMMINTRIN_H_INCLUDED
 # error "Never use <lzcntintrin.h> directly; include <x86intrin.h> instead."
 #endif

Follow-Ups:
- Re: PATCH: Support BMI, BMI2 and LZCNT in <immintrin.h>
  - From: Uros Bizjak

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