add tests

Author: frasercrmck

clang/lib/Driver/ToolChains/Clang.cpp

@@ -8543,6 +8543,7 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
     }
   }
 
+  // Propagate -fcuda-short-ptr if compiling CUDA or SYCL for NVPTX
   if (IsCuda || (IsSYCLDevice && Triple.isNVPTX())) {
     if (Args.hasFlag(options::OPT_fcuda_short_ptr,
                      options::OPT_fno_cuda_short_ptr, false))

clang/test/CodeGenSYCL/nvptx-short-ptr.cpp

@@ -0,0 +1,10 @@
+// RUN: %clang_cc1 -fsycl-is-device -disable-llvm-passes \
+// RUN:  -triple nvptx-nvidia-cuda -emit-llvm -fcuda-short-ptr -mllvm -nvptx-short-ptr %s -o - \
+// RUN:    | FileCheck %s --check-prefix CHECK32
+
+// RUN: %clang_cc1 -fsycl-is-device -disable-llvm-passes \
+// RUN:  -triple nvptx64-nvidia-cuda -emit-llvm -fcuda-short-ptr -mllvm -nvptx-short-ptr %s -o - \
+// RUN:    | FileCheck %s --check-prefix CHECK64
+
+// CHECK32: target datalayout = "e-p:32:32-i64:64-i128:128-v16:16-v32:32-n16:32:64"
+// CHECK64: target datalayout = "e-p3:32:32-p4:32:32-p5:32:32-i64:64-i128:128-v16:16-v32:32-n16:32:64"

clang/test/Driver/sycl-nvptx-short-ptr.cpp

@@ -0,0 +1,16 @@
+// REQUIRES: nvptx-registered-target
+
+// RUN: %clang -### -nocudalib \
+// RUN:   -fsycl -fsycl-targets=nvptx64-nvidia-cuda %s 2>&1 \
+// RUN: | FileCheck --check-prefix=CHECK-DEFAULT %s
+
+// RUN: %clang -### -nocudalib \
+// RUN:   -fsycl -fsycl-targets=nvptx64-nvidia-cuda -fcuda-short-ptr %s 2>&1 \
+// RUN: | FileCheck --check-prefix=CHECK-SHORT %s
+
+
+// CHECK-SHORT: "-mllvm" "--nvptx-short-ptr"
+// CHECK-SHORT: "-fcuda-short-ptr"
+
+// CHECK-DEFAULT-NOT: "--nvptx-short-ptr"
+// CHECK-DEFAULT-NOT: "-fcuda-short-ptr"