previously using round to even, the result was wrong.
Signed-off-by: Homer Hsing <[email protected]>
---
backend/src/ocl_stdlib.tmpl.h | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/backend/src/ocl_stdlib.tmpl.h b/backend/src/ocl_stdlib.tmpl.h
index 202f7f5..038cf1c 100644
--- a/backend/src/ocl_stdlib.tmpl.h
+++ b/backend/src/ocl_stdlib.tmpl.h
@@ -1542,7 +1542,12 @@ INLINE_OVERLOADABLE float
__gen_ocl_internal_atan2pi(float y, float x) {
}
INLINE_OVERLOADABLE float __gen_ocl_internal_fabs(float x) { return
__gen_ocl_fabs(x); }
INLINE_OVERLOADABLE float __gen_ocl_internal_trunc(float x) { return
__gen_ocl_rndz(x); }
-INLINE_OVERLOADABLE float __gen_ocl_internal_round(float x) { return
__gen_ocl_rnde(x); }
+INLINE_OVERLOADABLE float __gen_ocl_internal_round(float x) {
+ float y = __gen_ocl_rndz(x);
+ if (__gen_ocl_fabs(x - y) >= 0.5f)
+ y += __gen_ocl_internal_copysign(1.f, x);
+ return y;
+}
INLINE_OVERLOADABLE float __gen_ocl_internal_floor(float x) { return
__gen_ocl_rndd(x); }
INLINE_OVERLOADABLE float __gen_ocl_internal_ceil(float x) { return
__gen_ocl_rndu(x); }
INLINE_OVERLOADABLE float __gen_ocl_internal_log(float x) { return
native_log(x); }
--
1.8.3.2
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