llvm/llvm/test/tools/llvm-reduce/mir/preserve-frame-info.mir

# REQUIRES: amdgpu-registered-target
# RUN: llvm-reduce -abort-on-invalid-reduction -simplify-mir -mtriple=amdgcn-amd-amdhsa --delta-passes=instructions --test FileCheck --test-arg --check-prefix=CHECK-INTERESTINGNESS --test-arg %s --test-arg --input-file %s -o %t 2> %t.log
# RUN: FileCheck --match-full-lines --check-prefix=RESULT %s < %t

# CHECK-INTERESTINGNESS-COUNT-15: V_MOV_B32

# RESULT: frameInfo:
# RESULT-NEXT: isFrameAddressTaken: true
# RESULT-NEXT: isReturnAddressTaken: true
# RESULT-NEXT: hasStackMap:     true
# RESULT-NEXT: hasPatchPoint:   true
# RESULT-NEXT: offsetAdjustment: 128
# RESULT-NEXT: maxAlignment:    64
# RESULT-NEXT: adjustsStack:    true
# RESULT-NEXT: hasCalls:        true
# RESULT-NEXT: stackProtector: '%stack.9.guard'
# RESULT-NEXT: maxCallFrameSize: 420
# RESULT-NEXT: cvBytesOfCalleeSavedRegisters: 48
# RESULT-NEXT: hasOpaqueSPAdjustment: true
# RESULT-NEXT: hasVAStart:      true
# RESULT-NEXT: hasMustTailInVarArgFunc: true
# RESULT-NEXT: hasTailCall:     true
# RESULT-NEXT: savePoint:       '%bb.1'
# RESULT-NEXT: restorePoint:    '%bb.2'

# RESULT-NEXT: fixedStack:
# RESULT-NEXT:  - { id: 0, offset: 56, size: 4, alignment: 8, callee-saved-register: '$sgpr44',
# RESULT-NEXT:      callee-saved-restored: false }
# RESULT-NEXT:  - { id: 1, offset: 52, size: 4, alignment: 4, callee-saved-register: '$sgpr43' }
# RESULT-NEXT:  - { id: 2, offset: 48, size: 8, alignment: 16, isAliased: true }
# RESULT-NEXT:  - { id: 3, offset: 16, size: 16, alignment: 16 }
# RESULT-NEXT:  - { id: 4, size: 8, alignment: 16 }

# RESULT-NEXT: stack:
# RESULT-NEXT:  - { id: 0, name: bigalloca, offset: 16, size: 16, alignment: 8 }
# RESULT-NEXT:  - { id: 1, offset: 64, size: 4, alignment: 16, debug-info-variable: '!8',
# RESULT-NEXT:      debug-info-expression: '!DIExpression()', debug-info-location: '!10' }
# RESULT-NEXT:  - { id: 2, type: spill-slot, offset: 32, size: 4, alignment: 4 }
# RESULT-NEXT:  - { id: 3, type: spill-slot, offset: 36, size: 4, alignment: 4, stack-id: sgpr-spill }
# RESULT-NEXT:  - { id: 4, name: dynamic_alloca, type: variable-sized, alignment: 64 }
# RESULT-NEXT:  - { id: 5, name: m1, size: 2052, alignment: 4, local-offset: 0 }
# RESULT-NEXT:  - { id: 6, name: m2, size: 2060, alignment: 32, local-offset: 2080 }
# RESULT-NEXT:  - { id: 7, offset: 48, size: 4, alignment: 4, callee-saved-register: '$sgpr40' }
# RESULT-NEXT:  - { id: 8, offset: 52, size: 4, alignment: 4, callee-saved-register: '$sgpr41',
# RESULT-NEXT:      callee-saved-restored: false }
# RESULT-NEXT:  - { id: 9, name: guard, offset: 128, size: 4, alignment: 4 }


# RESULT: bb.0:
# RESULT-NEXT: [[FI0:%[0-9]+]]:vgpr_32 = V_MOV_B32_e32 %stack.1, implicit $exec
# RESULT-NEXT: [[FI1:%[0-9]+]]:vgpr_32 = V_MOV_B32_e32 %stack.0.bigalloca, implicit $exec
# RESULT-NEXT: [[FI2:%[0-9]+]]:vgpr_32 = V_MOV_B32_e32 %stack.2, implicit $exec
# RESULT-NEXT: [[FI3:%[0-9]+]]:vgpr_32 = V_MOV_B32_e32 %stack.3, implicit $exec
# RESULT-NEXT: [[FI4:%[0-9]+]]:vgpr_32 = V_MOV_B32_e32 %stack.4.dynamic_alloca, implicit $exec
# RESULT-NEXT: [[FI5:%[0-9]+]]:vgpr_32 = V_MOV_B32_e32 %stack.5.m1, implicit $exec
# RESULT-NEXT: [[FI6:%[0-9]+]]:vgpr_32 = V_MOV_B32_e32 %stack.6.m2, implicit $exec
# RESULT-NEXT: [[FI7:%[0-9]+]]:vgpr_32 = V_MOV_B32_e32 %stack.7, implicit $exec
# RESULT-NEXT: [[FI8:%[0-9]+]]:vgpr_32 = V_MOV_B32_e32 %stack.8, implicit $exec
# RESULT-NEXT: [[FI9:%[0-9]+]]:vgpr_32 = V_MOV_B32_e32 %fixed-stack.2, implicit $exec
# RESULT-NEXT: [[FI10:%[0-9]+]]:vgpr_32 = V_MOV_B32_e32 %fixed-stack.3, implicit $exec
# RESULT-NEXT: [[FI11:%[0-9]+]]:vgpr_32 = V_MOV_B32_e32 %fixed-stack.4, implicit $exec
# RESULT-NEXT: [[FI12:%[0-9]+]]:vgpr_32 = V_MOV_B32_e32 %fixed-stack.1, implicit $exec
# RESULT-NEXT: [[FI13:%[0-9]+]]:vgpr_32 = V_MOV_B32_e32 %fixed-stack.0, implicit $exec
# RESULT-NEXT: [[FI14:%[0-9]+]]:vgpr_32 = V_MOV_B32_e32 %stack.9.guard, implicit $exec
# RESULT-NEXT: S_ENDPGM 0, implicit [[FI0]], implicit [[FI1]], implicit [[FI2]], implicit [[FI3]], implicit [[FI4]], implicit [[FI5]], implicit [[FI6]], implicit [[FI7]], implicit [[FI8]], implicit [[FI9]], implicit [[FI10]], implicit [[FI11]], implicit [[FI12]], implicit [[FI13]], implicit [[FI14]]
--- |
  define void @func(i32 %size) !dbg !5 {
    %bigalloca = alloca [4 x i32], align 1, addrspace(5)
    %dynamic_alloca = alloca i32, i32 %size, align 1, addrspace(5)
    %dead = alloca i64, align 1, addrspace(5)
    %m1 = alloca [513 x float], align 1, addrspace(5)
    %m2 = alloca [513 x float], align 1, addrspace(5)
    %guard = alloca i32, align 4, addrspace(5)
    call void @llvm.dbg.declare(metadata i32 addrspace(5)* undef, metadata !8, metadata !DIExpression()), !dbg !10
    ret void
  }

  declare void @llvm.dbg.declare(metadata, metadata, metadata) #0

  attributes #0 = { nocallback nofree nosync nounwind readnone speculatable willreturn }

  !llvm.dbg.cu = !{!0}
  !llvm.module.flags = !{!2, !3, !4}

  !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
  !1 = !DIFile(filename: "tmp.c", directory: "/dev/null")
  !2 = !{i32 2, !"Dwarf Version", i32 4}
  !3 = !{i32 2, !"Debug Info Version", i32 3}
  !4 = !{i32 7, !"PIC Level", i32 2}
  !5 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !6, scopeLine: 1, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0)
  !6 = !DISubroutineType(types: !7)
  !7 = !{null}
  !8 = !DILocalVariable(name: "in", arg: 1, scope: !5, file: !1, line: 1, type: !9)
  !9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
  !10 = !DILocation(line: 1, column: 14, scope: !5)

...
---
name: func
tracksRegLiveness: true
frameInfo:
  isFrameAddressTaken: true
  isReturnAddressTaken: true
  hasStackMap:     true
  hasPatchPoint:   true
  stackSize:       0
  offsetAdjustment: 128
  maxAlignment:    1
  adjustsStack:    true
  hasCalls:        true
  stackProtector:  '%stack.9'
  maxCallFrameSize: 420
  cvBytesOfCalleeSavedRegisters: 48
  hasOpaqueSPAdjustment: true
  hasVAStart:      true
  hasMustTailInVarArgFunc: true
  hasTailCall:     true
  localFrameSize:  0
  savePoint:       '%bb.1'
  restorePoint:    '%bb.2'

fixedStack:
  - { id: 0, offset: 0, size: 8, alignment: 4, isImmutable: true, isAliased: false }
  - { id: 1, offset: 16, size: 16, alignment: 8, isImmutable: false, isAliased: false }
  - { id: 2, offset: 48, size: 8, alignment: 4, isImmutable: false, isAliased: true }
  - { id: 3, offset: 52, size: 4, alignment: 4, callee-saved-register: '$sgpr43', callee-saved-restored: true  }
  - { id: 4, offset: 56, size: 4, alignment: 4, callee-saved-register: '$sgpr44', callee-saved-restored: false  }
stack:
  - { id: 1, offset: 16, size: 16, alignment: 8, name: bigalloca }
  - { id: 0, offset: 64, size: 4, alignment: 16,
      debug-info-variable: '!8', debug-info-expression: '!DIExpression()',
      debug-info-location: '!10' }
  - { id: 2, offset: 32, size: 4, alignment: 4, type: spill-slot }
  - { id: 3, offset: 36, size: 4, alignment: 4, type: spill-slot, stack-id: sgpr-spill }
  - { id: 4, type: variable-sized, alignment: 64, name: dynamic_alloca }
  - { id: 5, name: m1, size: 2052, alignment: 4, local-offset: 0 }
  - { id: 6, name: m2, size: 2060, alignment: 32, local-offset: 2080 }
  - { id: 7, offset: 48, size: 4, alignment: 4, callee-saved-register: '$sgpr40', callee-saved-restored: true}
  - { id: 8, offset: 52, size: 4, alignment: 4, callee-saved-register: '$sgpr41', callee-saved-restored: false}
  - { id: 9, offset: 128, size: 4, alignment: 4, name: guard }
body:             |
  bb.0:
    S_NOP 0
    %0:vgpr_32 = V_MOV_B32_e32 %stack.0, implicit $exec
    %1:vgpr_32 = V_MOV_B32_e32 %stack.1, implicit $exec
    %2:vgpr_32 = V_MOV_B32_e32 %stack.2, implicit $exec
    %3:vgpr_32 = V_MOV_B32_e32 %stack.3, implicit $exec
    %4:vgpr_32 = V_MOV_B32_e32 %stack.4, implicit $exec
    %5:vgpr_32 = V_MOV_B32_e32 %stack.5, implicit $exec
    %6:vgpr_32 = V_MOV_B32_e32 %stack.6, implicit $exec
    %7:vgpr_32 = V_MOV_B32_e32 %stack.7, implicit $exec
    %8:vgpr_32 = V_MOV_B32_e32 %stack.8, implicit $exec
    %9:vgpr_32 = V_MOV_B32_e32 %fixed-stack.2, implicit $exec
    %10:vgpr_32 = V_MOV_B32_e32 %fixed-stack.1, implicit $exec
    %11:vgpr_32 = V_MOV_B32_e32 %fixed-stack.0, implicit $exec
    %12:vgpr_32 = V_MOV_B32_e32 %fixed-stack.3, implicit $exec
    %13:vgpr_32 = V_MOV_B32_e32 %fixed-stack.4, implicit $exec
    %14:vgpr_32 = V_MOV_B32_e32 %stack.9.guard, implicit $exec
    S_ENDPGM 0, implicit %0, implicit %1, implicit %2, implicit %3, implicit %4, implicit %5, implicit %6, implicit %7, implicit %8, implicit %9, implicit %10, implicit %11, implicit %12, implicit %13, implicit %14

  bb.1:
    S_NOP 0
    S_WAITCNT 0

  bb.2:
    S_WAITCNT 0
    S_NOP 0

...