================
@@ -0,0 +1,38 @@
+#include <clc/clcmacro.h>
+#include <clc/internal/clc.h>
+#include <clc/relational/clc_isnan.h>
+
+#define CLC_SIGN(TYPE, F)
\
+ _CLC_DEF _CLC_OVERLOAD TYPE __clc_sign(TYPE x) {
\
+ if (__clc_isnan(x)) {
\
+ return 0.0F;
\
+ }
\
+ if (x > 0.0F) {
\
+ return 1.0F;
\
+ }
\
+ if (x < 0.0F) {
\
+ return -1.0F;
\
+ }
\
+ return x; /* -0.0 or +0.0 */
\
----------------
frasercrmck wrote:
I don't see how `copysign` could be used here, sorry. Could you elaborate? In
another project we had an implementation of `sign` which bitcast to integer
types and used bit twiddling which may be a better implementation.
https://github.com/llvm/llvm-project/pull/115699
_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
