1 ; RUN: llc -mtriple=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s
2 ; RUN: llc -mtriple=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s
4 ; SI-LABEL: {{^}}br_i1_phi:
7 ; SI: s_mov_b64 [[TMP:s\[[0-9]+:[0-9]+\]]], 0
10 ; SI: s_mov_b64 [[TMP]], exec
13 ; SI: s_and_saveexec_b64 {{s\[[0-9]+:[0-9]+\]}}, [[TMP]]
15 define amdgpu_kernel void @br_i1_phi(i32 %arg) {
17 %tidig = call i32 @llvm.amdgcn.workitem.id.x()
18 %cmp = trunc i32 %tidig to i1
19 br i1 %cmp, label %bb2, label %bb3
24 bb3: ; preds = %bb2, %bb
25 %tmp = phi i1 [ true, %bb2 ], [ false, %bb ]
26 br i1 %tmp, label %bb4, label %bb6
29 %val = load volatile i32, ptr addrspace(1) undef
30 %tmp5 = mul i32 %val, %arg
33 bb6: ; preds = %bb4, %bb3
37 declare i32 @llvm.amdgcn.workitem.id.x() #0
39 attributes #0 = { nounwind readnone }
41 ; Make sure this won't crash.
42 ; SI-LABEL: {{^}}vcopy_i1_undef
43 ; SI: v_cndmask_b32_e64
44 ; SI: v_cndmask_b32_e64
45 define <2 x float> @vcopy_i1_undef(ptr addrspace(1) %p, i1 %c0) {
47 br i1 %c0, label %exit, label %false
50 %x = load <2 x float>, ptr addrspace(1) %p
51 %cmp = fcmp one <2 x float> %x, zeroinitializer
55 %c = phi <2 x i1> [ undef, %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>