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.
5
6# RUN: llc -march=amdgcn -run-pass=si-lower-sgpr-spills,prologepilog -verify-machineinstrs -o - %s | FileCheck %s
7
8# CHECK-LABEL: name:            foo
9# CHECK: {{^}}fixedStack:      []
10# CHECK: stack:           []
11
12# CHECK-LABEL: name:            bar
13# CHECK: fixedStack:      []
14# CHECK-NEXT: {{^}}stack:
15# CHECK-NEXT:  - { id:
16
17
18---
19name:            foo
20body:             |
21  bb.0:
22    SI_RETURN
23
24...
25---
26name:            bar
27tracksRegLiveness: true
28liveins:
29  - { reg: '$vgpr0', virtual-reg: '' }
30  - { reg: '$vgpr1', virtual-reg: '' }
31  - { reg: '$vgpr2', virtual-reg: '' }
32stack:
33  - { id: 0, name: '', type: spill-slot, offset: 0, size: 8, alignment: 4,
34      stack-id: sgpr-spill, callee-saved-register: '', callee-saved-restored: true,
35      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
36machineFunctionInfo:
37  scratchRSrcReg:  '$sgpr0_sgpr1_sgpr2_sgpr3'
38  stackPtrOffsetReg: '$sgpr32'
39body:             |
40  bb.0:
41    liveins: $vgpr0, $vgpr1, $vgpr2
42
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
48
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
54
55    SI_RETURN
56
57...
58
59