1 # RUN: llc -mtriple=amdgcn-- -run-pass=print-machine-uniformity -o - %s 2>&1 | FileCheck %s
3 # This test was generated using SelectionDAG, where the compilation flow does
4 # not match the assumptions made in MachineUA. For now, this test mostly serves
5 # the purpose of catching in any crash when invoking MachineUA. The test should
6 # be deleted when it is clear that it is not actually testing anything useful.
8 # CHECK-LABEL: MachineUniformityInfo for function: irreducible
12 tracksRegLiveness: true
17 successors: %bb.1, %bb.2
18 liveins: $vgpr0, $vgpr1, $vgpr2, $sgpr4_sgpr5, $sgpr6_sgpr7, $sgpr8_sgpr9, $sgpr10_sgpr11, $sgpr14, $sgpr15, $sgpr16
20 %0:sreg_32 = IMPLICIT_DEF
21 %2:vgpr_32 = COPY $vgpr0
22 %3:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
23 S_CMP_EQ_U32 %0, 0, implicit-def $scc
24 S_CBRANCH_SCC1 %bb.1, implicit $scc
28 %28:vgpr_32 = PHI %3, %bb.0, %49, %bb.5
29 %29:vgpr_32 = V_ADD_U32_e64 %28, 1, 0, implicit $exec
33 %38:vgpr_32 = PHI %3, %bb.0, %49, %bb.4
34 %39:vgpr_32 = V_ADD_U32_e64 %38, 2, 0, implicit $exec
37 %49:vgpr_32 = PHI %29, %bb.1, %39, %bb.2
40 successors: %bb.2, %bb.5
42 %50:vgpr_32 = V_AND_B32_e32 3, %2, implicit $exec
43 %51:sreg_64 = V_CMP_EQ_U32_e64 %50, 2, implicit $exec
44 %52:sreg_64 = SI_IF killed %51:sreg_64, %bb.2, implicit-def dead $exec, implicit-def dead $scc, implicit $exec
47 successors: %bb.1, %bb.6
48 %61:sreg_64 = V_CMP_EQ_U32_e64 %50, 1, implicit $exec
49 %62:sreg_64 = SI_IF killed %61:sreg_64, %bb.1, implicit-def dead $exec, implicit-def dead $scc, implicit $exec