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1; RUN: llc -mtriple=amdgcn -stop-after=amdgpu-isel -o - %s | FileCheck %s2; RUN: llc -mtriple=amdgcn -stop-after=amdgpu-isel -enable-new-pm -o - %s | FileCheck %s3 4; CHECK-LABEL: vcopy_i1_undef5; CHECK: [[IMPDEF0:%[0-9]+]]:vreg_1 = IMPLICIT_DEF6; CHECK-NOT: COPY7; CHECK: [[IMPDEF1:%[0-9]+]]:vreg_1 = IMPLICIT_DEF8; CHECK-NOT: COPY [[IMPDEF0]]9; CHECK-NOT: COPY [[IMPDEF1]]10; CHECK: .false:11define <2 x float> @vcopy_i1_undef(ptr addrspace(1) %p, i1 %c0) {12entry:13 br i1 %c0, label %exit, label %false14 15false:16 %x = load <2 x float>, ptr addrspace(1) %p17 %cmp = fcmp one <2 x float> %x, zeroinitializer18 br label %exit19 20exit:21 %c = phi <2 x i1> [ poison, %entry ], [ %cmp, %false ]22 %ret = select <2 x i1> %c, <2 x float> <float 2.0, float 2.0>, <2 x float> <float 4.0, float 4.0>23 ret <2 x float> %ret24}25