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authorAndrew Senkevich <andrew.n.senkevich@gmail.com>2015-05-14 17:26:49 +0300
committerAndrew Senkevich <andrew.n.senkevich@gmail.com>2015-05-14 18:07:06 +0300
commit202d48dab92e0f031928528589f086835595afe5 (patch)
tree1c725bf862425df168ff678be5b0b2a787243090 /bits
parent58c50f06aacd84787cbe3ed315b10d3976b56612 (diff)
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This patch adds infrastructure for addition of SIMD
declarations for math functions in math.h. Added new headers math-vector.h (only generic version for now) and libm-simd-decl-stubs.h with empty definitions required for proper unfolding of new macros __MATHCALL_VEC which will be used for declaration of vector math functions. 2015-05-14 Andrew Senkevich <andrew.senkevich@intel.com> * bits/math-vector.h: New file. * bits/libm-simd-decl-stubs.h: New header. * math/Makefile (headers): Added new header libm-simd-decl-stubs.h. * math/math.h (__MATHCALL_VEC): New macro.
Diffstat (limited to 'bits')
-rw-r--r--bits/libm-simd-decl-stubs.h40
-rw-r--r--bits/math-vector.h27
2 files changed, 67 insertions, 0 deletions
diff --git a/bits/libm-simd-decl-stubs.h b/bits/libm-simd-decl-stubs.h
new file mode 100644
index 0000000..b1ba994
--- /dev/null
+++ b/bits/libm-simd-decl-stubs.h
@@ -0,0 +1,40 @@
+/* Empty definitions required for __MATHCALL_VEC unfolding in mathcalls.h.
+ Copyright (C) 2014-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _MATH_H
+# error "Never include <bits/libm-simd-decl-stubs.h> directly;\
+ include <math.h> instead."
+#endif
+
+/* Needed definitions could be generated with:
+ for func in $(grep __MATHCALL_VEC math/bits/mathcalls.h |\
+ sed -r "s|__MATHCALL_VEC.?\(||; s|,.*||"); do
+ echo "#define __DECL_SIMD_${func}";
+ echo "#define __DECL_SIMD_${func}f";
+ echo "#define __DECL_SIMD_${func}l";
+ done
+ */
+
+#ifndef _BITS_LIBM_SIMD_DECL_STUBS_H
+#define _BITS_LIBM_SIMD_DECL_STUBS_H 1
+
+#define __DECL_SIMD_cos
+#define __DECL_SIMD_cosf
+#define __DECL_SIMD_cosl
+
+#endif
diff --git a/bits/math-vector.h b/bits/math-vector.h
new file mode 100644
index 0000000..a407a58
--- /dev/null
+++ b/bits/math-vector.h
@@ -0,0 +1,27 @@
+/* Platform-specific SIMD declarations of math functions.
+ Copyright (C) 2014-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _MATH_H
+# error "Never include <bits/math-vector.h> directly;\
+ include <math.h> instead."
+#endif
+
+/* Get default empty definitions required for __MATHCALL_VEC unfolding.
+ Plaform-specific analogue of this header should redefine them with specific
+ SIMD declarations. */
+#include <bits/libm-simd-decl-stubs.h>