Index: clang/lib/CodeGen/CodeGenModule.cpp
===================================================================
--- clang/lib/CodeGen/CodeGenModule.cpp
+++ clang/lib/CodeGen/CodeGenModule.cpp
@@ -1501,6 +1501,8 @@
           // Turn "unsigned type" to "utype"
           if (typeNameRef.consume_front("unsigned "))
             return std::string("u") + typeNameRef.str();
+          if (typeNameRef.consume_front("signed "))
+            return typeNameRef.str();
         }
 
         return typeName;
Index: clang/test/CodeGenOpenCL/kernel-arg-info.cl
===================================================================
--- clang/test/CodeGenOpenCL/kernel-arg-info.cl
+++ clang/test/CodeGenOpenCL/kernel-arg-info.cl
@@ -107,6 +107,16 @@
 // CHECK-NOT: !kernel_arg_name
 // ARGINFO: !kernel_arg_name ![[PIPE_ARG_NAMES:[0-9]+]]
 
+kernel void foo9(signed char si1,  global const signed char* si2) {}
+// CHECK: define{{.*}} spir_kernel void @foo9{{[^!]+}}
+// CHECK: !kernel_arg_addr_space ![[SINT_AS_QUAL:[0-9]+]]
+// CHECK: !kernel_arg_access_qual ![[MD42]]
+// CHECK: !kernel_arg_type ![[SINT_TY:[0-9]+]]
+// CHECK: !kernel_arg_base_type ![[SINT_TY]]
+// CHECK: !kernel_arg_type_qual ![[SINT_QUAL:[0-9]+]]
+// CHECK-NOT: !kernel_arg_name
+// ARGINFO: !kernel_arg_name ![[SINT_ARG_NAMES:[0-9]+]]
+
 // CHECK: ![[MD11]] = !{i32 1, i32 1, i32 1, i32 1, i32 2, i32 2, i32 1, i32 1, i32 1, i32 1, i32 3, i32 3, i32 3, i32 3, i32 3, i32 3, i32 3, i32 3, i32 0, i32 0, i32 0, i32 0}
 // CHECK: ![[MD12]] = !{!"none", !"none", !"none", !"none", !"none", !"none", !"none", !"none", !"none", !"none", !"none", !"none", !"none", !"none", !"none", !"none", !"none", !"none", !"none", !"none", !"none", !"none"}
 // CHECK: ![[MD13]] = !{!"int*", !"int*", !"int*", !"int*", !"int*", !"int*", !"int*", !"int*", !"int*", !"int*", !"int*", !"int*", !"int*", !"int*", !"int*", !"int*", !"int*", !"int*", !"int", !"int", !"int", !"int"}
@@ -146,3 +156,7 @@
 // CHECK: ![[PIPE_BASE_TY]] = !{!"int", !"uchar", !"uchar __attribute__((ext_vector_type(2)))", !"uchar", !"uchar"}
 // CHECK: ![[PIPE_QUAL]] = !{!"pipe", !"pipe", !"pipe", !"pipe", !"pipe"}
 // ARGINFO: ![[PIPE_ARG_NAMES]] = !{!"p1", !"p2", !"p3", !"p4", !"p5"}
+// CHECK: ![[SINT_AS_QUAL]] = !{i32 0, i32 1}
+// CHECK: ![[SINT_TY]] = !{!"char", !"char*"}
+// CHECK: ![[SINT_QUAL]] = !{!"", !"const"}
+// ARGINFO: ![[SINT_ARG_NAMES]] = !{!"si1", !"si2"}