llvm/test/CodeGen/ARM/fpoffset_overflow.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -o - %s -mtriple=thumbv7-- -run-pass=stack-protector -run-pass=prologepilog | FileCheck %s
---
# This should trigger an emergency spill in the register scavenger because the
# frame offset into the large argument is too large.
name: func0
tracksRegLiveness: true
fixedStack:
  - { id: 0, offset: 4084, size: 4, alignment: 4, isImmutable: true,
      isAliased: false }
  - { id: 1, offset: -12, size: 4096, alignment: 4, isImmutable: false,
      isAliased: false }
body: |
  bb.0:
    ; CHECK-LABEL: name: func0
    ; CHECK: liveins: $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11, $lr
    ; CHECK: $sp = frame-setup t2STMDB_UPD $sp, 14 /* CC::al */, $noreg, killed $r4, killed $r5, killed $r6, killed $r7, killed $r8, killed $r9, killed $r10, killed $r11, killed $lr
    ; CHECK: frame-setup CFI_INSTRUCTION def_cfa_offset 36
    ; CHECK: frame-setup CFI_INSTRUCTION offset $lr, -16
    ; CHECK: frame-setup CFI_INSTRUCTION offset $r11, -20
    ; CHECK: frame-setup CFI_INSTRUCTION offset $r10, -24
    ; CHECK: frame-setup CFI_INSTRUCTION offset $r9, -28
    ; CHECK: frame-setup CFI_INSTRUCTION offset $r8, -32
    ; CHECK: frame-setup CFI_INSTRUCTION offset $r7, -36
    ; CHECK: frame-setup CFI_INSTRUCTION offset $r6, -40
    ; CHECK: frame-setup CFI_INSTRUCTION offset $r5, -44
    ; CHECK: frame-setup CFI_INSTRUCTION offset $r4, -48
    ; CHECK: $sp = frame-setup tSUBspi $sp, 4, 14 /* CC::al */, $noreg
    ; CHECK: frame-setup CFI_INSTRUCTION def_cfa_offset 52
    ; CHECK: $r0 = IMPLICIT_DEF
    ; CHECK: $r1 = IMPLICIT_DEF
    ; CHECK: $r2 = IMPLICIT_DEF
    ; CHECK: $r3 = IMPLICIT_DEF
    ; CHECK: $r4 = IMPLICIT_DEF
    ; CHECK: $r5 = IMPLICIT_DEF
    ; CHECK: $r6 = IMPLICIT_DEF
    ; CHECK: $r7 = IMPLICIT_DEF
    ; CHECK: $r8 = IMPLICIT_DEF
    ; CHECK: $r9 = IMPLICIT_DEF
    ; CHECK: $r10 = IMPLICIT_DEF
    ; CHECK: $r11 = IMPLICIT_DEF
    ; CHECK: $r12 = IMPLICIT_DEF
    ; CHECK: $lr = IMPLICIT_DEF
    ; CHECK: t2STRi12 killed $r0, $sp, 0, 14 /* CC::al */, $noreg :: (store (s32) into %stack.0)
    ; CHECK: $r0 = t2ADDri killed $sp, 4096, 14 /* CC::al */, $noreg, $noreg
    ; CHECK: $sp = t2LDRi12 killed $r0, 40, 14 /* CC::al */, $noreg :: (load (s32))
    ; CHECK: $r0 = t2LDRi12 $sp, 0, 14 /* CC::al */, $noreg :: (load (s32) from %stack.0)
    ; CHECK: KILL $r0
    ; CHECK: KILL $r1
    ; CHECK: KILL $r2
    ; CHECK: KILL $r3
    ; CHECK: KILL $r4
    ; CHECK: KILL $r5
    ; CHECK: KILL $r6
    ; CHECK: KILL $r7
    ; CHECK: KILL $r8
    ; CHECK: KILL $r9
    ; CHECK: KILL $r10
    ; CHECK: KILL $r11
    ; CHECK: KILL $r12
    ; CHECK: KILL $lr
    $r0 = IMPLICIT_DEF
    $r1 = IMPLICIT_DEF
    $r2 = IMPLICIT_DEF
    $r3 = IMPLICIT_DEF
    $r4 = IMPLICIT_DEF
    $r5 = IMPLICIT_DEF
    $r6 = IMPLICIT_DEF
    $r7 = IMPLICIT_DEF
    $r8 = IMPLICIT_DEF
    $r9 = IMPLICIT_DEF
    $r10 = IMPLICIT_DEF
    $r11 = IMPLICIT_DEF
    $r12 = IMPLICIT_DEF
    $lr = IMPLICIT_DEF

    $sp = t2LDRi12 %fixed-stack.0, 0, 14, $noreg :: (load (s32))

    KILL $r0
    KILL $r1
    KILL $r2
    KILL $r3
    KILL $r4
    KILL $r5
    KILL $r6
    KILL $r7
    KILL $r8
    KILL $r9
    KILL $r10
    KILL $r11
    KILL $r12
    KILL $lr
...
---
# This should not trigger an emergency spill yet.
name: func1
tracksRegLiveness: true
fixedStack:
  - { id: 0, offset: 4044, size: 4, alignment: 4, isImmutable: true,
      isAliased: false }
  - { id: 1, offset: -12, size: 4056, alignment: 4, isImmutable: false,
      isAliased: false }
body: |
  bb.0:
    ; CHECK-LABEL: name: func1
    ; CHECK: liveins: $r4, $r5, $r6, $r8, $r9, $r10, $r11, $lr
    ; CHECK: $sp = frame-setup t2STMDB_UPD $sp, 14 /* CC::al */, $noreg, killed $r4, killed $r5, killed $r6, killed $r8, killed $r9, killed $r10, killed $r11, killed $lr
    ; CHECK: frame-setup CFI_INSTRUCTION def_cfa_offset 32
    ; CHECK: frame-setup CFI_INSTRUCTION offset $lr, -16
    ; CHECK: frame-setup CFI_INSTRUCTION offset $r11, -20
    ; CHECK: frame-setup CFI_INSTRUCTION offset $r10, -24
    ; CHECK: frame-setup CFI_INSTRUCTION offset $r9, -28
    ; CHECK: frame-setup CFI_INSTRUCTION offset $r8, -32
    ; CHECK: frame-setup CFI_INSTRUCTION offset $r6, -36
    ; CHECK: frame-setup CFI_INSTRUCTION offset $r5, -40
    ; CHECK: frame-setup CFI_INSTRUCTION offset $r4, -44
    ; CHECK: $sp = frame-setup tSUBspi $sp, 4, 14 /* CC::al */, $noreg
    ; CHECK: frame-setup CFI_INSTRUCTION def_cfa_offset 48
    ; CHECK: $r0 = IMPLICIT_DEF
    ; CHECK: $r1 = IMPLICIT_DEF
    ; CHECK: $r2 = IMPLICIT_DEF
    ; CHECK: $r3 = IMPLICIT_DEF
    ; CHECK: $r4 = IMPLICIT_DEF
    ; CHECK: $r5 = IMPLICIT_DEF
    ; CHECK: $r6 = IMPLICIT_DEF
    ; CHECK: $r8 = IMPLICIT_DEF
    ; CHECK: $r9 = IMPLICIT_DEF
    ; CHECK: $r10 = IMPLICIT_DEF
    ; CHECK: $r11 = IMPLICIT_DEF
    ; CHECK: $r12 = IMPLICIT_DEF
    ; CHECK: $lr = IMPLICIT_DEF
    ; CHECK: $r11 = t2LDRi12 $sp, 4092, 14 /* CC::al */, $noreg :: (load (s32))
    ; CHECK: KILL $r0
    ; CHECK: KILL $r1
    ; CHECK: KILL $r2
    ; CHECK: KILL $r3
    ; CHECK: KILL $r4
    ; CHECK: KILL $r5
    ; CHECK: KILL $r6
    ; CHECK: KILL $r8
    ; CHECK: KILL $r9
    ; CHECK: KILL $r10
    ; CHECK: KILL $r11
    ; CHECK: KILL $r12
    ; CHECK: KILL $lr
    $r0 = IMPLICIT_DEF
    $r1 = IMPLICIT_DEF
    $r2 = IMPLICIT_DEF
    $r3 = IMPLICIT_DEF
    $r4 = IMPLICIT_DEF
    $r5 = IMPLICIT_DEF
    $r6 = IMPLICIT_DEF
    $r8 = IMPLICIT_DEF
    $r9 = IMPLICIT_DEF
    $r10 = IMPLICIT_DEF
    $r11 = IMPLICIT_DEF
    $r12 = IMPLICIT_DEF
    $lr = IMPLICIT_DEF

    $r11 = t2LDRi12 %fixed-stack.0, 0, 14, $noreg :: (load (s32))

    KILL $r0
    KILL $r1
    KILL $r2
    KILL $r3
    KILL $r4
    KILL $r5
    KILL $r6
    KILL $r8
    KILL $r9
    KILL $r10
    KILL $r11
    KILL $r12
    KILL $lr
...