1 # This test used to crash MIRPrinter::convertStackObjects():
2 # MFI can contain some dead stack objects after PEI pass, but objects storage
3 # contains not dead objects only. So using objects IDs as offset in the storage
4 # caused out of bounds access.
6 # RUN: llc -march=amdgcn -start-before=si-lower-sgpr-spills -stop-after=prologepilog -verify-machineinstrs -o - %s | FileCheck %s
8 # CHECK-LABEL: name: foo
9 # CHECK: {{^}}fixedStack: []
12 # CHECK-LABEL: name: bar
13 # CHECK: fixedStack: []
14 # CHECK-NEXT: {{^}}stack:
27 tracksRegLiveness: true
29 - { reg: '$vgpr0', virtual-reg: '' }
30 - { reg: '$vgpr1', virtual-reg: '' }
31 - { reg: '$vgpr2', virtual-reg: '' }
33 - { id: 0, name: '', type: spill-slot, offset: 0, size: 8, alignment: 4,
34 stack-id: sgpr-spill, callee-saved-register: '', callee-saved-restored: true,
35 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
37 scratchRSrcReg: '$sgpr0_sgpr1_sgpr2_sgpr3'
38 stackPtrOffsetReg: '$sgpr32'
41 liveins: $vgpr0, $vgpr1, $vgpr2
43 renamable $vgpr41 = COPY $vgpr2, implicit $exec
44 renamable $vgpr40 = COPY $vgpr1, implicit $exec
45 renamable $vcc = V_CMP_NE_U32_e64 42, killed $vgpr0, implicit $exec
46 $sgpr4_sgpr5 = S_AND_SAVEEXEC_B64 $vcc, implicit-def $exec, implicit-def $scc, implicit $exec
47 renamable $sgpr34_sgpr35 = S_XOR_B64 $exec, killed renamable $sgpr4_sgpr5, implicit-def dead $scc
49 ADJCALLSTACKUP 0, 0, implicit-def dead $scc, implicit-def $sgpr32, implicit $sgpr32
50 renamable $sgpr4_sgpr5 = SI_PC_ADD_REL_OFFSET target-flags(amdgpu-gotprel32-lo) @foo + 4, target-flags(amdgpu-gotprel32-hi) @foo + 12, implicit-def dead $scc
51 renamable $sgpr4_sgpr5 = S_LOAD_DWORDX2_IMM killed renamable $sgpr4_sgpr5, 0, 0
52 dead $sgpr30_sgpr31 = SI_CALL killed renamable $sgpr4_sgpr5, @foo, csr_amdgpu, implicit $sgpr0_sgpr1_sgpr2_sgpr3
53 ADJCALLSTACKDOWN 0, 0, implicit-def dead $scc, implicit-def $sgpr32, implicit $sgpr32