Author: awatry
Date: Wed Sep 14 19:17:34 2016
New Revision: 281566
URL: http://llvm.org/viewvc/llvm-project?rev=281566&view=rev
Log:
math: Implement tgamma
Signed-off-by: Aaron Watry <awa...@gmail.com>
Reviewed-by: Tom Stellard <thomas.stell...@amd.com>
Added:
libclc/trunk/generic/include/clc/math/tgamma.h
libclc/trunk/generic/include/clc/math/tgamma.inc
libclc/trunk/generic/lib/math/tgamma.cl
Modified:
libclc/trunk/generic/include/clc/clc.h
libclc/trunk/generic/lib/SOURCES
Modified: libclc/trunk/generic/include/clc/clc.h
URL:
http://llvm.org/viewvc/llvm-project/libclc/trunk/generic/include/clc/clc.h?rev=281566&r1=281565&r2=281566&view=diff
==============================================================================
--- libclc/trunk/generic/include/clc/clc.h (original)
+++ libclc/trunk/generic/include/clc/clc.h Wed Sep 14 19:17:34 2016
@@ -88,6 +88,7 @@
#include <clc/math/sqrt.h>
#include <clc/math/tan.h>
#include <clc/math/tanh.h>
+#include <clc/math/tgamma.h>
#include <clc/math/trunc.h>
#include <clc/math/native_cos.h>
#include <clc/math/native_divide.h>
Added: libclc/trunk/generic/include/clc/math/tgamma.h
URL:
http://llvm.org/viewvc/llvm-project/libclc/trunk/generic/include/clc/math/tgamma.h?rev=281566&view=auto
==============================================================================
--- libclc/trunk/generic/include/clc/math/tgamma.h (added)
+++ libclc/trunk/generic/include/clc/math/tgamma.h Wed Sep 14 19:17:34 2016
@@ -0,0 +1,3 @@
+#define __CLC_BODY <clc/math/tgamma.inc>
+#include <clc/math/gentype.inc>
+#undef __CLC_BODY
Added: libclc/trunk/generic/include/clc/math/tgamma.inc
URL:
http://llvm.org/viewvc/llvm-project/libclc/trunk/generic/include/clc/math/tgamma.inc?rev=281566&view=auto
==============================================================================
--- libclc/trunk/generic/include/clc/math/tgamma.inc (added)
+++ libclc/trunk/generic/include/clc/math/tgamma.inc Wed Sep 14 19:17:34 2016
@@ -0,0 +1 @@
+_CLC_OVERLOAD _CLC_DECL __CLC_GENTYPE tgamma(__CLC_GENTYPE a);
Modified: libclc/trunk/generic/lib/SOURCES
URL:
http://llvm.org/viewvc/llvm-project/libclc/trunk/generic/lib/SOURCES?rev=281566&r1=281565&r2=281566&view=diff
==============================================================================
--- libclc/trunk/generic/lib/SOURCES (original)
+++ libclc/trunk/generic/lib/SOURCES Wed Sep 14 19:17:34 2016
@@ -119,6 +119,7 @@ math/clc_sqrt.cl
math/sqrt.cl
math/tan.cl
math/tanh.cl
+math/tgamma.cl
relational/all.cl
relational/any.cl
relational/bitselect.cl
Added: libclc/trunk/generic/lib/math/tgamma.cl
URL:
http://llvm.org/viewvc/llvm-project/libclc/trunk/generic/lib/math/tgamma.cl?rev=281566&view=auto
==============================================================================
--- libclc/trunk/generic/lib/math/tgamma.cl (added)
+++ libclc/trunk/generic/lib/math/tgamma.cl Wed Sep 14 19:17:34 2016
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2016 Aaron Watry
+ * Copyright (c) 2014 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <clc/clc.h>
+
+#include "math.h"
+#include "../clcmacro.h"
+
+_CLC_OVERLOAD _CLC_DEF float tgamma(float x) {
+ const float pi = 3.1415926535897932384626433832795f;
+ float ax = fabs(x);
+ float lg = lgamma(ax);
+ float g = exp(lg);
+
+ if (x < 0.0f) {
+ float z = sinpi(x);
+ g = g * ax * z;
+ g = pi / g;
+ g = g == 0 ? as_float(PINFBITPATT_SP32) : g;
+ g = z == 0 ? as_float(QNANBITPATT_SP32) : g;
+ }
+
+ return g;
+}
+
+_CLC_UNARY_VECTORIZE(_CLC_OVERLOAD _CLC_DEF, float, tgamma, float);
+
+#ifdef cl_khr_fp64
+
+#pragma OPENCL EXTENSION cl_khr_fp64 : enable
+
+_CLC_OVERLOAD _CLC_DEF double tgamma(double x) {
+ const double pi = 3.1415926535897932384626433832795;
+ double ax = fabs(x);
+ double lg = lgamma(ax);
+ double g = exp(lg);
+
+ if (x < 0.0) {
+ double z = sinpi(x);
+ g = g * ax * z;
+ g = pi / g;
+ g = g == 0 ? as_double(PINFBITPATT_DP64) : g;
+ g = z == 0 ? as_double(QNANBITPATT_DP64) : g;
+ }
+
+ return g;
+}
+
+_CLC_UNARY_VECTORIZE(_CLC_OVERLOAD _CLC_DEF, double, tgamma, double);
+
+#endif
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