[libclc] 38/79: tanpi: Port from amd_builtins
Andreas Boll
aboll-guest at moszumanska.debian.org
Mon Mar 19 16:50:58 UTC 2018
This is an automated email from the git hooks/post-receive script.
aboll-guest pushed a commit to branch master
in repository libclc.
commit d20b120f30edb50085dcb0435784176a548e887b
Author: Jan Vesely <jan.vesely at rutgers.edu>
Date: Fri Jan 19 18:57:22 2018 +0000
tanpi: Port from amd_builtins
Passes piglit on turks and carrizo.
Passes CTS on carrizo.
Acked-By: Aaron Watry <awatry at gmail.com>
Tested-By: Aaron Watry <awatry at gmail.com>
Signed-off-by: Jan Vesely <jan.vesely at rutgers.edu>
git-svn-id: https://llvm.org/svn/llvm-project/libclc/trunk@322980 91177308-0d34-0410-b5e6-96231b3b80d8
---
generic/include/clc/clc.h | 1 +
generic/include/clc/math/tanpi.h | 7 ++
generic/include/math/clc_tanpi.h | 5 ++
generic/lib/SOURCES | 2 +
generic/lib/math/clc_tanpi.cl | 146 +++++++++++++++++++++++++++++++++++++++
generic/lib/math/tanpi.cl | 7 ++
6 files changed, 168 insertions(+)
diff --git a/generic/include/clc/clc.h b/generic/include/clc/clc.h
index 930bbfc..edb67fd 100644
--- a/generic/include/clc/clc.h
+++ b/generic/include/clc/clc.h
@@ -111,6 +111,7 @@
#include <clc/math/sqrt.h>
#include <clc/math/tan.h>
#include <clc/math/tanh.h>
+#include <clc/math/tanpi.h>
#include <clc/math/tgamma.h>
#include <clc/math/trunc.h>
#include <clc/math/native_cos.h>
diff --git a/generic/include/clc/math/tanpi.h b/generic/include/clc/math/tanpi.h
new file mode 100644
index 0000000..e883122
--- /dev/null
+++ b/generic/include/clc/math/tanpi.h
@@ -0,0 +1,7 @@
+#define __CLC_BODY <clc/math/unary_decl.inc>
+#define __CLC_FUNCTION tanpi
+
+#include <clc/math/gentype.inc>
+
+#undef __CLC_BODY
+#undef __CLC_FUNCTION
diff --git a/generic/include/math/clc_tanpi.h b/generic/include/math/clc_tanpi.h
new file mode 100644
index 0000000..7900b1d
--- /dev/null
+++ b/generic/include/math/clc_tanpi.h
@@ -0,0 +1,5 @@
+#define __CLC_FUNCTION __clc_tanpi
+#define __CLC_BODY <clc/math/unary_decl.inc>
+#include <clc/math/gentype.inc>
+#undef __CLC_BODY
+#undef __CLC_FUNCTION
diff --git a/generic/lib/SOURCES b/generic/lib/SOURCES
index 4546a9e..3109286 100644
--- a/generic/lib/SOURCES
+++ b/generic/lib/SOURCES
@@ -167,6 +167,8 @@ math/sqrt.cl
math/clc_tan.cl
math/tan.cl
math/tanh.cl
+math/clc_tanpi.cl
+math/tanpi.cl
math/tgamma.cl
misc/shuffle.cl
misc/shuffle2.cl
diff --git a/generic/lib/math/clc_tanpi.cl b/generic/lib/math/clc_tanpi.cl
new file mode 100644
index 0000000..d57c3ce
--- /dev/null
+++ b/generic/lib/math/clc_tanpi.cl
@@ -0,0 +1,146 @@
+/*
+ * 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 "sincos_helpers.h"
+#include "../clcmacro.h"
+#include "tables.h"
+
+_CLC_DEF _CLC_OVERLOAD float __clc_tanpi(float x)
+{
+ int ix = as_int(x);
+ int xsgn = ix & 0x80000000;
+ int xnsgn = xsgn ^ 0x80000000;
+ ix ^= xsgn;
+ float ax = as_float(ix);
+ int iax = (int)ax;
+ float r = ax - iax;
+ int xodd = xsgn ^ (iax & 0x1 ? 0x80000000 : 0);
+
+ // Initialize with return for +-Inf and NaN
+ int ir = 0x7fc00000;
+
+ // 2^24 <= |x| < Inf, the result is always even integer
+ ir = ix < 0x7f800000 ? xsgn : ir;
+
+ // 2^23 <= |x| < 2^24, the result is always integer
+ ir = ix < 0x4b800000 ? xodd : ir;
+
+ // 0x1.0p-7 <= |x| < 2^23, result depends on which 0.25 interval
+
+ // r < 1.0
+ float a = 1.0f - r;
+ int e = 0;
+ int s = xnsgn;
+
+ // r <= 0.75
+ int c = r <= 0.75f;
+ a = c ? r - 0.5f : a;
+ e = c ? 1 : e;
+ s = c ? xsgn : s;
+
+ // r < 0.5
+ c = r < 0.5f;
+ a = c ? 0.5f - r : a;
+ s = c ? xnsgn : s;
+
+ // 0 < r <= 0.25
+ c = r <= 0.25f;
+ a = c ? r : a;
+ e = c ? 0 : e;
+ s = c ? xsgn : s;
+
+ float t = __clc_tanf_piby4(a * M_PI_F, 0);
+ float tr = -native_recip(t);
+ int jr = s ^ as_int(e ? tr : t);
+
+ jr = r == 0.5f ? xodd | 0x7f800000 : jr;
+
+ ir = ix < 0x4b000000 ? jr : ir;
+
+ return as_float(ir);
+}
+_CLC_UNARY_VECTORIZE(_CLC_DEF _CLC_OVERLOAD, float, __clc_tanpi, float);
+
+#ifdef cl_khr_fp64
+#include "sincosD_piby4.h"
+
+_CLC_DEF _CLC_OVERLOAD double __clc_tanpi(double x)
+{
+ long ix = as_long(x);
+ long xsgn = ix & 0x8000000000000000L;
+ long xnsgn = xsgn ^ 0x8000000000000000L;
+ ix ^= xsgn;
+ double ax = as_double(ix);
+ long iax = (long)ax;
+ double r = ax - iax;
+ long xodd = xsgn ^ (iax & 0x1 ? 0x8000000000000000L : 0L);
+
+ // Initialize with return for +-Inf and NaN
+ long ir = 0x7ff8000000000000L;
+
+ // 2^53 <= |x| < Inf, the result is always even integer
+ ir = ix < 0x7ff0000000000000L ? xsgn : ir;
+
+ // 2^52 <= |x| < 2^53, the result is always integer
+ ir = ix < 0x4340000000000000L ? xodd : ir;
+
+ // 0x1.0p-14 <= |x| < 2^53, result depends on which 0.25 interval
+
+ // r < 1.0
+ double a = 1.0 - r;
+ int e = 0;
+ long s = xnsgn;
+
+ // r <= 0.75
+ int c = r <= 0.75;
+ double t = r - 0.5;
+ a = c ? t : a;
+ e = c ? 1 : e;
+ s = c ? xsgn : s;
+
+ // r < 0.5
+ c = r < 0.5;
+ t = 0.5 - r;
+ a = c ? t : a;
+ s = c ? xnsgn : s;
+
+ // r <= 0.25
+ c = r <= 0.25;
+ a = c ? r : a;
+ e = c ? 0 : e;
+ s = c ? xsgn : s;
+
+ double api = a * M_PI;
+ double2 tt = __clc_tan_piby4(api, 0.0);
+ long jr = s ^ as_long(e ? tt.hi : tt.lo);
+
+ long si = xodd | 0x7ff0000000000000L;
+ jr = r == 0.5 ? si : jr;
+
+ ir = ix < 0x4330000000000000L ? jr : ir;
+
+ return as_double(ir);
+}
+_CLC_UNARY_VECTORIZE(_CLC_DEF _CLC_OVERLOAD, double, __clc_tanpi, double);
+#endif
diff --git a/generic/lib/math/tanpi.cl b/generic/lib/math/tanpi.cl
new file mode 100644
index 0000000..0012fb4
--- /dev/null
+++ b/generic/lib/math/tanpi.cl
@@ -0,0 +1,7 @@
+#include <clc/clc.h>
+
+#include <math/clc_tanpi.h>
+
+#define __CLC_FUNC tanpi
+#define __CLC_BODY <clc_sw_unary.inc>
+#include <clc/math/gentype.inc>
--
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