diff --git a/lib/Target/PTX/PTXMachineFunctionInfo.h b/lib/Target/PTX/PTXMachineFunctionInfo.h
index a0425958042..81df1c236cb 100644
--- a/lib/Target/PTX/PTXMachineFunctionInfo.h
+++ b/lib/Target/PTX/PTXMachineFunctionInfo.h
@@ -42,12 +42,9 @@ public:
   void setRetReg(unsigned reg) { reg_ret = reg; }
 
   void doneAddArg(void) {
-    std::sort(reg_arg.begin(), reg_arg.end());
     _isDoneAddArg = true;
   }
-  void doneAddLocalVar(void) {
-    std::sort(reg_local_var.begin(), reg_local_var.end());
-  }
+  void doneAddLocalVar(void) {}
 
   bool isDoneAddArg(void) { return _isDoneAddArg; }
 
diff --git a/test/CodeGen/PTX/parameter-order.ll b/test/CodeGen/PTX/parameter-order.ll
index 8131f13a6e8..95d4a328149 100644
--- a/test/CodeGen/PTX/parameter-order.ll
+++ b/test/CodeGen/PTX/parameter-order.ll
@@ -1,8 +1,8 @@
 ; RUN: llc < %s -march=ptx32 | FileCheck %s
 
-; CHECK: .func (.reg .u32 r0) test_parameter_order (.reg .u32 r1, .reg .u32 r2)
-define ptx_device i32 @test_parameter_order(i32 %x, i32 %y) {
+; CHECK: .func (.reg .u32 r0) test_parameter_order (.reg .f32 f1, .reg .u32 r1, .reg .u32 r2, .reg .f32 f2)
+define ptx_device i32 @test_parameter_order(float %a, i32 %b, i32 %c, float %d) {
 ; CHECK: sub.u32 r0, r1, r2
-	%z = sub i32 %x, %y
-	ret i32 %z
+	%result = sub i32 %b, %c
+	ret i32 %result
 }