Added CodeGenSYCL test

Author: P-Jensen

clang/test/CodeGenSYCL/flush-denormals.cpp

@@ -0,0 +1,18 @@
+// RUN: %clang_cc1 -fcuda-is-device -fdenormal-fp-math-f32=positive-zero \
+// RUN:   -triple nvptx-nvidia-cuda -emit-llvm -o - %s | \
+// RUN:   FileCheck -check-prefixes=FTZ32,PTXFTZ32 %s
+
+// RUN: %clang_cc1 -fcuda-is-device -fdenormal-fp-math=positive-zero \
+// RUN:   -triple nvptx-nvidia-cuda -emit-llvm -o - %s | \
+// RUN:   FileCheck -check-prefixes=FTZ,PTXFTZ %s
+
+// CHECK-LABEL: define void @_Z3foov() #0
+void foo() {}
+
+// FTZ32: attributes #0 = {{.*}} "denormal-fp-math-f32"="positive-zero,positive-zero"
+// PTXFTZ32:!llvm.module.flags = !{{{.*}}, [[MODFLAG:![0-9]+]], {{.*}}}
+// PTXFTZ32:[[MODFLAG]] = !{i32 4, !"nvvm-reflect-ftz", i32 1}
+
+// FTZ: attributes #0 = {{.*}} "denormal-fp-math"="positive-zero,positive-zero"
+// PTXFTZ:!llvm.module.flags = !{{{.*}}, [[MODFLAG:![0-9]+]], {{.*}}}
+// PTXFTZ:[[MODFLAG]] = !{i32 4, !"nvvm-reflect-ftz", i32 1}