Implement atan builtin

llvm-svn: 213759

1 files changed, 64 insertions, 0 deletions

diff --git a/libclc/generic/lib/math/math.h b/libclc/generic/lib/math/math.h
new file mode 100644
index 00000000000..53ed38a78a5
--- /dev/null
+++ b/libclc/generic/lib/math/math.h
@@ -0,0 +1,64 @@
+/*
+ * 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.
+ */
+
+#define SNAN 0x001
+#define QNAN 0x002
+#define NINF 0x004
+#define NNOR 0x008
+#define NSUB 0x010
+#define NZER 0x020
+#define PZER 0x040
+#define PSUB 0x080
+#define PNOR 0x100
+#define PINF 0x200
+
+#define HAVE_HW_FMA32() (1)
+#define HAVE_BITALIGN() (0)
+#define HAVE_FAST_FMA32() (0)
+
+#define MATH_DIVIDE(X, Y) ((X) / (Y))
+#define MATH_RECIP(X) (1.0f / (X))
+#define MATH_SQRT(X) sqrt(X)
+
+#define SIGNBIT_SP32      0x80000000
+#define EXSIGNBIT_SP32    0x7fffffff
+#define EXPBITS_SP32      0x7f800000
+#define MANTBITS_SP32     0x007fffff
+#define ONEEXPBITS_SP32   0x3f800000
+#define TWOEXPBITS_SP32   0x40000000
+#define HALFEXPBITS_SP32  0x3f000000
+#define IMPBIT_SP32       0x00800000
+#define QNANBITPATT_SP32  0x7fc00000
+#define INDEFBITPATT_SP32 0xffc00000
+#define PINFBITPATT_SP32  0x7f800000
+#define NINFBITPATT_SP32  0xff800000
+#define EXPBIAS_SP32      127
+#define EXPSHIFTBITS_SP32 23
+#define BIASEDEMIN_SP32   1
+#define EMIN_SP32         -126
+#define BIASEDEMAX_SP32   254
+#define EMAX_SP32         127
+#define LAMBDA_SP32       1.0e30
+#define MANTLENGTH_SP32   24
+#define BASEDIGITS_SP32   7
+
+#define ALIGNED(x)	__attribute__((aligned(x)))