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native_rsqrt: Switch implementation to 1 / native_sqrt 

Reviewer: Jeroen Ketema
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
llvm-svn: 318065
This commit is contained in:
Jan Vesely 2017-11-13 18:28:51 +00:00
parent 541a3f0758
commit a6758c94ef
4 changed files with 18 additions and 1 deletions
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10
libclc/generic/include/clc/math/native_rsqrt.h
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@ -1 +1,9 @@
#define native_rsqrt rsqrt
#define __CLC_BODY <clc/math/unary_decl.inc>
#define __CLC_FUNCTION native_rsqrt
#define __FLOAT_ONLY
#include <clc/math/gentype.inc>
#undef __FLOAT_ONLY
#undef __CLC_BODY
#undef __CLC_FUNCTION

1
libclc/generic/lib/SOURCES
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@ -126,6 +126,7 @@ math/native_exp2.cl
math/native_log.cl
math/native_log10.cl
math/native_log2.cl
math/native_rsqrt.cl
math/native_sin.cl
math/native_sqrt.cl
math/native_tan.cl

5
libclc/generic/lib/math/native_rsqrt.cl Normal file
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@ -0,0 +1,5 @@
#include <clc/clc.h>
#define __CLC_BODY <native_rsqrt.inc>
#define __FLOAT_ONLY
#include <clc/math/gentype.inc>

3
libclc/generic/lib/math/native_rsqrt.inc Normal file
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@ -0,0 +1,3 @@
_CLC_OVERLOAD _CLC_DEF __CLC_GENTYPE native_rsqrt(__CLC_GENTYPE val) {
return 1.0f / native_sqrt(val);
}