Index: lib/Driver/Tools.cpp
===================================================================
--- lib/Driver/Tools.cpp
+++ lib/Driver/Tools.cpp
@@ -12177,6 +12177,10 @@
     CmdArgs.push_back("-O0");
   }
 
+  // Pass -v to ptxas if it was passed to the driver.
+  if (Args.hasArg(options::OPT_v))
+    CmdArgs.push_back("-v");
+
   CmdArgs.push_back("--gpu-name");
   CmdArgs.push_back(Args.MakeArgString(CudaArchToString(gpu_arch)));
   CmdArgs.push_back("--output-file");
Index: test/Driver/openmp-offload.c
===================================================================
--- test/Driver/openmp-offload.c
+++ test/Driver/openmp-offload.c
@@ -596,3 +596,12 @@
 
 // CHK-PTXAS: ptxas{{.*}}" "-c"
 // CHK-PTXAS-NEXT: /bin/cp
+
+/// ###########################################################################
+
+/// Check that CLANG forwards the -v flag to PTXAS.
+// RUN:   %clang -### -fopenmp=libomp -fopenmp-targets=nvptx64-nvidia-cuda -save-temps -no-canonical-prefixes -v %s 2>&1 \
+// RUN:   | FileCheck -check-prefix=CHK-VERBOSE %s
+
+// CHK-VERBOSE: ptxas{{.*}}" "-v"
+// CHK-VERBOSE-NEXT: /bin/cp