llvm/test/MachineVerifier/stack-protector-offset.mir

# REQUIRES: aarch64-registered-target, amdgpu-registered-target

# RUN: split-file %s %t

# RUN: llc -mtriple=aarch64 -run-pass=none -o - %t/valid.mir
# RUN: not --crash llc -mtriple=aarch64 -run-pass=none -o - %t/lower.mir 2>&1 | FileCheck %t/lower.mir
# RUN: not --crash llc -mtriple=aarch64 -run-pass=none -o - %t/overlap.mir 2>&1 | FileCheck %t/overlap.mir
# RUN: not --crash llc -mtriple=amdgcn -run-pass=none -o - %t/higher.mir 2>&1 | FileCheck %t/higher.mir

;--- valid.mir
---
name:            valid
frameInfo:
  stackSize:       16
  stackProtector:  '%stack.1'
stack:
  - { id: 0, offset: -24, size: 8, alignment: 8, stack-id: default }
  - { id: 1, offset: -16, size: 8, alignment: 8, stack-id: default }
body:             |
  bb.0:
...

;--- lower.mir
# CHECK: *** Bad machine code: Stack protector is not the top-most object on the stack ***
---
name:            lower
frameInfo:
  stackSize:       16
  stackProtector:  '%stack.1'
stack:
  - { id: 0, offset: -16, size: 8, alignment: 8, stack-id: default }
  - { id: 1, offset: -24, size: 8, alignment: 8, stack-id: default }
body:             |
  bb.0:
...

;--- overlap.mir
# CHECK: *** Bad machine code: Stack protector overlaps with another stack object ***
---
name:            overlap
frameInfo:
  stackSize:       16
  stackProtector:  '%stack.1'
stack:
  - { id: 0, offset: -20, size: 8, alignment: 4, stack-id: default }
  - { id: 1, offset: -16, size: 8, alignment: 8, stack-id: default }
body:             |
  bb.0:
...

;--- higher.mir
# CHECK: *** Bad machine code: Stack protector is not the top-most object on the stack ***
---
name:            higher
frameInfo:
  stackSize:       16
  stackProtector:  '%stack.1'
stack:
  - { id: 0, offset: 16, size: 8, alignment: 8, stack-id: default }
  - { id: 1, offset: 24, size: 8, alignment: 8, stack-id: default }
body:             |
  bb.0:
...