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Implement fmin using __builtin_fmin 

This ensures correct handling of NaN.

This has been tested with piglit, OpenCV, and the ocl conformance tests.

llvm-svn: 233712
This commit is contained in:
Tom Stellard 2015-03-31 16:59:21 +00:00
parent e782178e9c
commit 310da7bfd2
3 changed files with 28 additions and 8 deletions
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5
libclc/generic/include/clc/math/fmin.h
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@ -1,8 +1,5 @@
#undef fmin
#define fmin __clc_fmin
#define __CLC_BODY <clc/math/binary_decl.inc>
#define __CLC_FUNCTION __clc_fmin
#define __CLC_FUNCTION fmin
#include <clc/math/gentype.inc>

13
libclc/generic/lib/math/fmin.cl
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@ -1,11 +1,16 @@
#include <clc/clc.h>
#include "../clcmacro.h"
_CLC_DEFINE_BINARY_BUILTIN(float, fmin, __builtin_fminf, float, float);
#ifdef cl_khr_fp64
#pragma OPENCL EXTENSION cl_khr_fp64 : enable
_CLC_DEFINE_BINARY_BUILTIN(double, fmin, __builtin_fmin, double, double);
#endif
#define FUNCTION __clc_fmin
#define FUNCTION_IMPL(x, y) ((y) < (x) ? (y) : (x))
#define __CLC_BODY <binary_impl.inc>
#define __CLC_BODY <fmin.inc>
#include <clc/math/gentype.inc>

18
libclc/generic/lib/math/fmin.inc Normal file
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@ -0,0 +1,18 @@
#if !defined(__CLC_SCALAR)
_CLC_OVERLOAD _CLC_DEF __CLC_GENTYPE fmin(__CLC_GENTYPE x, float y) {
return fmin(x, (__CLC_GENTYPE)((__CLC_SCALAR_GENTYPE)y));
}
#ifdef cl_khr_fp64
#pragma OPENCL EXTENSION cl_khr_fp64 : enable
_CLC_OVERLOAD _CLC_DEF __CLC_GENTYPE fmin(__CLC_GENTYPE x, double y) {
return fmin(x, (__CLC_GENTYPE)((__CLC_SCALAR_GENTYPE)y));
}
#endif // ifdef cl_khr_fp64
#endif // !defined(__CLC_SCALAR)