Merge pull request #4429 from martin-frbg/issue4428

martin-frbg · web-flow · commit 2527afaaa2a4 · 2024-01-15T11:26:12.000+01:00
Handle NAN and INF in ARM and generic/s390x ZSCAL
diff --git a/kernel/arm/zscal.c b/kernel/arm/zscal.c
@@ -60,6 +60,7 @@ int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da_r,FLOAT da_i, F
 			else
 			{
 				temp = - da_i * x[ip+1] ;
+				if (isnan(x[ip]) || isinf(x[ip])) temp = NAN;
 				x[ip+1] = da_i * x[ip]  ;
 			}
 		}

Original file line number	Diff line number	Diff line change
`@@ -60,6 +60,7 @@ int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da_r,FLOAT da_i, F`
`60`	`60`	`else`
`61`	`61`	`{`
`62`	`62`	`temp = - da_i * x[ip+1] ;`
	`63`	`+ if (isnan(x[ip]) \|\| isinf(x[ip])) temp = NAN;`
`63`	`64`	`x[ip+1] = da_i * x[ip] ;`
`64`	`65`	`}`
`65`	`66`	`}`