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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
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.
-rw-r--r--ChangeLog6
-rw-r--r--bits/libm-simd-decl-stubs.h40
-rw-r--r--bits/math-vector.h27
-rw-r--r--math/Makefile3
-rw-r--r--math/math.h9
5 files changed, 84 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog
index acf630ee14..d32e8daa7f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
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.
+
* math/gen-libm-have-vector-test.sh: Script generates series of macros
for conditions in testing functions.
* math/Makefile: Added call of libm-have-vector-test.sh.
diff --git a/bits/libm-simd-decl-stubs.h b/bits/libm-simd-decl-stubs.h
new file mode 100644
index 0000000000..b1ba994350
--- /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 0000000000..a407a583cc
--- /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>
diff --git a/math/Makefile b/math/Makefile
index fdfeb4a247..4f66162a09 100644
--- a/math/Makefile
+++ b/math/Makefile
@@ -26,7 +26,8 @@ headers := math.h bits/mathcalls.h bits/mathinline.h bits/huge_val.h \
bits/huge_valf.h bits/huge_vall.h bits/inf.h bits/nan.h \
fpu_control.h complex.h bits/cmathcalls.h fenv.h \
bits/fenv.h bits/fenvinline.h bits/mathdef.h tgmath.h \
- bits/math-finite.h
+ bits/math-finite.h bits/math-vector.h \
+ bits/libm-simd-decl-stubs.h
# FPU support code.
aux := setfpucw fpu_control
diff --git a/math/math.h b/math/math.h
index c7ff16971e..7e959fca9f 100644
--- a/math/math.h
+++ b/math/math.h
@@ -27,6 +27,9 @@
__BEGIN_DECLS
+/* Get machine-dependent vector math functions declarations. */
+#include <bits/math-vector.h>
+
/* Get machine-dependent HUGE_VAL value (returned on overflow).
On all IEEE754 machines, this is +Infinity. */
#include <bits/huge_val.h>
@@ -49,6 +52,12 @@ __BEGIN_DECLS
so we can easily declare each function as both `name' and `__name',
and can declare the float versions `namef' and `__namef'. */
+#define __SIMD_DECL(function) __CONCAT (__DECL_SIMD_, function)
+
+#define __MATHCALL_VEC(function, suffix, args) \
+ __SIMD_DECL (__MATH_PRECNAME (function, suffix)) \
+ __MATHCALL (function, suffix, args)
+
#define __MATHCALL(function,suffix, args) \
__MATHDECL (_Mdouble_,function,suffix, args)
#define __MATHDECL(type, function,suffix, args) \