|  | ; RUN: llc -march=amdgcn -stop-after=amdgpu-isel -verify-machineinstrs -o - %s | FileCheck %s | 
|  |  | 
|  | ; CHECK-LABEL: vcopy_i1_undef | 
|  | ; CHECK: [[IMPDEF0:%[0-9]+]]:sreg_64 = IMPLICIT_DEF | 
|  | ; CHECK-NOT: COPY | 
|  | ; CHECK: [[IMPDEF1:%[0-9]+]]:sreg_64 = IMPLICIT_DEF | 
|  | ; CHECK-NOT: COPY [[IMPDEF0]] | 
|  | ; CHECK-NOT: COPY [[IMPDEF1]] | 
|  | ; CHECK: .false: | 
|  | define <2 x float> @vcopy_i1_undef(ptr addrspace(1) %p, i1 %c0) { | 
|  | entry: | 
|  | br i1 %c0, label %exit, label %false | 
|  |  | 
|  | false: | 
|  | %x = load <2 x float>, ptr addrspace(1) %p | 
|  | %cmp = fcmp one <2 x float> %x, zeroinitializer | 
|  | br label %exit | 
|  |  | 
|  | exit: | 
|  | %c = phi <2 x i1> [ undef, %entry ], [ %cmp, %false ] | 
|  | %ret = select <2 x i1> %c, <2 x float> <float 2.0, float 2.0>, <2 x float> <float 4.0, float 4.0> | 
|  | ret <2 x float> %ret | 
|  | } |