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r600/fmin: Flush denormals before calling builtin.

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Same reason as amdgcn.
Fixes fmin, minmag CTS on turks.
Reviewer: Tom Stellard <tstellar@redhat.com>
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>

llvm-svn: 334228
This commit is contained in:
Jan Vesely 2018-06-07 20:27:58 +00:00
parent e23c0ec086
commit e0edcaa4a9
2 changed files with 31 additions and 0 deletions
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1
libclc/r600/lib/SOURCES
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@ -1,4 +1,5 @@
math/fmax.cl
math/fmin.cl
synchronization/barrier_impl.ll
workitem/get_global_offset.cl
workitem/get_group_id.cl

30
libclc/r600/lib/math/fmin.cl Normal file
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#include <clc/clc.h>
#include "../../../generic/lib/clcmacro.h"
#include "../../../generic/lib/math/math.h"
_CLC_DEF _CLC_OVERLOAD float fmin(float x, float y)
{
/* fcanonicalize removes sNaNs and flushes denormals if not enabled.
* Otherwise fmin instruction flushes the values for comparison,
* but outputs original denormal */
x = __clc_flush_denormal_if_not_supported(x);
y = __clc_flush_denormal_if_not_supported(y);
return __builtin_fminf(x, y);
}
_CLC_BINARY_VECTORIZE(_CLC_OVERLOAD _CLC_DEF, float, fmin, float, float)
#ifdef cl_khr_fp64
#pragma OPENCL EXTENSION cl_khr_fp64 : enable
_CLC_DEF _CLC_OVERLOAD double fmin(double x, double y)
{
return __builtin_fmin(x, y);
}
_CLC_BINARY_VECTORIZE(_CLC_OVERLOAD _CLC_DEF, double, fmin, double, double)
#endif
#define __CLC_BODY <../../../generic/lib/math/fmin.inc>
#include <clc/math/gentype.inc>