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TheRock/compiler/amd-llvm/llvm/test/CodeGen/AArch64/stack-guard-reassign.mir
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

35 lines
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# RUN: llc -mtriple=arm64-apple-ios -start-before=localstackalloc -stop-after=prologepilog -o - %s | FileCheck %s
--- |
@__stack_chk_guard = external global ptr
define i32 @main(i32, ptr) {
%StackGuardSlot = alloca ptr
unreachable
}
...
---
name: main
tracksRegLiveness: true
frameInfo:
# CHECK: stackSize: 544
stackProtector: '%stack.0.StackGuardSlot'
stack:
- { id: 0, name: StackGuardSlot, size: 8, alignment: 8, stack-id: default }
# Verify that the offset assigned to the stack protector is at the top of the
# frame, covering the locals.
# CHECK: - { id: 0, name: StackGuardSlot, type: default, offset: -24, size: 8,
# CHECK-NEXT: alignment: 8, stack-id: default, callee-saved-register: '', callee-saved-restored: true,
# CHECK-NEXT: local-offset: -8, debug-info-variable: '', debug-info-expression: '',
# CHECK-NEXT: debug-info-location: '' }
- { id: 1, size: 512, alignment: 1, stack-id: default }
- { id: 2, size: 4, alignment: 4, stack-id: default }
body: |
bb.0:
%25:gpr64common = LOAD_STACK_GUARD :: (dereferenceable invariant load (s64) from @__stack_chk_guard)
STRXui killed %25, %stack.0.StackGuardSlot, 0 :: (volatile store (s64) into %stack.0.StackGuardSlot)
%28:gpr64 = LDRXui %stack.0.StackGuardSlot, 0 :: (volatile load (s64) from %stack.0.StackGuardSlot)
%29:gpr64common = LOAD_STACK_GUARD :: (dereferenceable invariant load (s64) from @__stack_chk_guard)
RET_ReallyLR implicit undef $w0, implicit killed %28, implicit killed %29
...