Merge pull request #4782 from martin-frbg/azurewincl

Fix NAN handling in ARM/generic SCAL; have AzureCI Windows show errors on failure

azure-pipelines.yml

@@ -136,7 +136,7 @@ jobs:
       cmake -G "Ninja" -DCMAKE_C_COMPILER=cl -DCMAKE_Fortran_COMPILER=flang-new -DC_LAPACK=1 -DCMAKE_MT=mt -DCMAKE_BUILD_TYPE=Release -DMSVC_STATIC_CRT=ON ..
       cmake --build . --config Release
       ctest
-
+      ctest --rerun-failed --output-on-failure
 
 
 - job: OSX_OpenMP

kernel/arm/scal.c

@@ -48,7 +48,11 @@ int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da, FLOAT *x, BLAS
 	{
 
 		if ( da == 0.0 )
+			if (!isnan(x[i]) && !isinf(x[i])) {
 			x[i]=0.0;
+			} else {
+			x[i]=NAN;
+			}
 		else
 			x[i] = da * x[i] ;