Implement fract builtin

This implementation was ported from the AMD builtin library
and has been tested with piglit, OpenCV, and the ocl conformance tests.

llvm-svn: 235620

6 files changed, 130 insertions, 0 deletions

diff --git a/libclc/generic/include/clc/clc.h b/libclc/generic/include/clc/clc.h
index 193c42b1be2..2a72fbe2942 100644
--- a/libclc/generic/include/clc/clc.h
+++ b/libclc/generic/include/clc/clc.h
@@ -56,6 +56,7 @@
 #include <clc/math/fmax.h>
 #include <clc/math/fmin.h>
 #include <clc/math/fmod.h>
+#include <clc/math/fract.h>
 #include <clc/math/half_sqrt.h>
 #include <clc/math/hypot.h>
 #include <clc/math/log.h>
diff --git a/libclc/generic/include/clc/math/fract.h b/libclc/generic/include/clc/math/fract.h
new file mode 100644
index 00000000000..f2c887288b2
--- /dev/null
+++ b/libclc/generic/include/clc/math/fract.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2014, 2015 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.
+ */
+
+#define __CLC_BODY <clc/math/fract.inc>
+#include <clc/math/gentype.inc>
diff --git a/libclc/generic/include/clc/math/fract.inc b/libclc/generic/include/clc/math/fract.inc
new file mode 100644
index 00000000000..71e6e8a9211
--- /dev/null
+++ b/libclc/generic/include/clc/math/fract.inc
@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2014, 2015 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.
+ */
+
+_CLC_OVERLOAD _CLC_DECL __CLC_GENTYPE fract(__CLC_GENTYPE x, global __CLC_GENTYPE *iptr);
+_CLC_OVERLOAD _CLC_DECL __CLC_GENTYPE fract(__CLC_GENTYPE x, local __CLC_GENTYPE *iptr);
+_CLC_OVERLOAD _CLC_DECL __CLC_GENTYPE fract(__CLC_GENTYPE x, private __CLC_GENTYPE *iptr);
diff --git a/libclc/generic/lib/SOURCES b/libclc/generic/lib/SOURCES
index 06bded67854..d21d6aa2e7e 100644
--- a/libclc/generic/lib/SOURCES
+++ b/libclc/generic/lib/SOURCES
@@ -81,6 +81,7 @@ math/exp10.cl
 math/fmax.cl
 math/fmin.cl
 math/fmod.cl
+math/fract.cl
 math/half_sqrt.cl
 math/hypot.cl
 math/log10.cl
diff --git a/libclc/generic/lib/math/fract.cl b/libclc/generic/lib/math/fract.cl
new file mode 100644
index 00000000000..b4340710145
--- /dev/null
+++ b/libclc/generic/lib/math/fract.cl
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2015 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>
+
+#ifdef cl_khr_fp64
+#pragma OPENCL EXTENSION cl_khr_fp64 : enable
+#endif
+
+#define __CLC_BODY <fract.inc>
+#include <clc/math/gentype.inc>
diff --git a/libclc/generic/lib/math/fract.inc b/libclc/generic/lib/math/fract.inc
new file mode 100644
index 00000000000..8d2a4d707a9
--- /dev/null
+++ b/libclc/generic/lib/math/fract.inc
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2015 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.
+ */
+
+#if __CLC_FPSIZE == 32
+#define MIN_CONSTANT 0x1.fffffep-1f
+#else
+#define MIN_CONSTANT 0x1.fffffffffffffp-1
+#endif
+
+_CLC_OVERLOAD _CLC_DEF __CLC_GENTYPE fract(__CLC_GENTYPE x, private __CLC_GENTYPE *iptr) {
+  *iptr = floor(x);
+  __CLC_GENTYPE r = fmin(x - *iptr, MIN_CONSTANT);
+  r = isinf(x) ? 0.0f : r;
+  r = isnan(x) ? x : r;
+  return r;
+}
+
+
+#define FRACT_DEF(addrspace) \
+  _CLC_OVERLOAD _CLC_DEF __CLC_GENTYPE fract(__CLC_GENTYPE x, addrspace __CLC_GENTYPE *iptr) { \
+    __CLC_GENTYPE private_iptr; \
+    __CLC_GENTYPE ret = fract(x, &private_iptr); \
+    *iptr = private_iptr; \
+    return ret; \
+ }
+
+FRACT_DEF(local);
+FRACT_DEF(global);
+
+#undef MIN_CONSTANT