diff options
| author | Tom Stellard <thomas.stellard@amd.com> | 2015-07-24 18:07:14 +0000 |
|---|---|---|
| committer | Tom Stellard <thomas.stellard@amd.com> | 2015-07-24 18:07:14 +0000 |
| commit | 7a09e88b6eac8c6b02ba02ef6b9c9d260247b7df (patch) | |
| tree | b6c37707096398927703333b18d87c2ce7bd93ba /libclc/generic/lib/math/log.cl | |
| parent | 44b6117dfde30d6cc292fabca8ecb0cef4657f7a (diff) | |
| download | bcm5719-llvm-7a09e88b6eac8c6b02ba02ef6b9c9d260247b7df.tar.gz bcm5719-llvm-7a09e88b6eac8c6b02ba02ef6b9c9d260247b7df.zip | |
Fix double implementation of log
We need to use M_LOG2E instead of M_LOG2E_F.
llvm-svn: 243132
Diffstat (limited to 'libclc/generic/lib/math/log.cl')
| -rw-r--r-- | libclc/generic/lib/math/log.cl | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/libclc/generic/lib/math/log.cl b/libclc/generic/lib/math/log.cl new file mode 100644 index 00000000000..ec1faa12606 --- /dev/null +++ b/libclc/generic/lib/math/log.cl @@ -0,0 +1,26 @@ +#include <clc/clc.h> +#include "../clcmacro.h" + +/* + *log(x) = log2(x) * (1/log2(e)) + */ + +_CLC_OVERLOAD _CLC_DEF float log(float x) +{ + return log2(x) * (1.0f / M_LOG2E_F); +} + +_CLC_UNARY_VECTORIZE(_CLC_OVERLOAD _CLC_DEF, float, log, float); + +#ifdef cl_khr_fp64 + +#pragma OPENCL EXTENSION cl_khr_fp64 : enable + +_CLC_OVERLOAD _CLC_DEF double log(double x) +{ + return log2(x) * (1.0 / M_LOG2E); +} + +_CLC_UNARY_VECTORIZE(_CLC_OVERLOAD _CLC_DEF, double, log, double); + +#endif // cl_khr_fp64 |
