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1; RUN: llc -mtriple=amdgcn < %s | FileCheck -check-prefix=SI %s2; RUN: llc -mtriple=amdgcn -mcpu=tonga < %s | FileCheck -check-prefix=SI %s3 4; SI-LABEL: {{^}}br_i1_phi:5 6; SI: ; %bb7; SI: s_mov_b64 [[TMP:s\[[0-9]+:[0-9]+\]]], 08 9; SI: ; %bb210; SI: s_mov_b64 [[TMP]], exec11 12; SI: ; %bb313; SI: s_and_saveexec_b64 {{s\[[0-9]+:[0-9]+\]}}, [[TMP]]14 15define amdgpu_kernel void @br_i1_phi(i32 %arg) {16bb:17 %tidig = call i32 @llvm.amdgcn.workitem.id.x()18 %cmp = trunc i32 %tidig to i119 br i1 %cmp, label %bb2, label %bb320 21bb2: ; preds = %bb22 br label %bb323 24bb3: ; preds = %bb2, %bb25 %tmp = phi i1 [ true, %bb2 ], [ false, %bb ]26 br i1 %tmp, label %bb4, label %bb627 28bb4: ; preds = %bb329 %val = load volatile i32, ptr addrspace(1) poison30 %tmp5 = mul i32 %val, %arg31 br label %bb632 33bb6: ; preds = %bb4, %bb334 ret void35}36 37declare i32 @llvm.amdgcn.workitem.id.x() #038 39attributes #0 = { nounwind readnone }40 41; Make sure this won't crash.42; SI-LABEL: {{^}}vcopy_i1_undef43; SI: v_cndmask_b32_e6444; SI: v_cndmask_b32_e6445define <2 x float> @vcopy_i1_undef(ptr addrspace(1) %p, i1 %c0) {46entry:47 br i1 %c0, label %exit, label %false48 49false:50 %x = load <2 x float>, ptr addrspace(1) %p51 %cmp = fcmp one <2 x float> %x, zeroinitializer52 br label %exit53 54exit:55 %c = phi <2 x i1> [ poison, %entry ], [ %cmp, %false ]56 %ret = select <2 x i1> %c, <2 x float> <float 2.0, float 2.0>, <2 x float> <float 4.0, float 4.0>57 ret <2 x float> %ret58}59