47 lines
2.6 KiB
YAML
47 lines
2.6 KiB
YAML
# RUN: llc -mtriple=aarch64--linux-gnu -mattr=+sve -start-before=localstackalloc -stop-after=prologepilog -o - %s | FileCheck %s
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--- |
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@__stack_chk_guard = external global i8*
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define i32 @main(i32, i8**) {
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%StackGuardSlot = alloca i8*
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unreachable
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}
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...
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---
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name: main
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tracksRegLiveness: true
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frameInfo:
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# CHECK: stackSize: 544
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# CHECK: localFrameSize: 516
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stackProtector: '%stack.3.StackGuardSlot'
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stack:
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# Stack objects 0 and 1 should end up in the local stack area, objects 2 and 3
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# should end up in the SVE stack area with 3 (the stack guard) on top.
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- { id: 0, size: 512, alignment: 1, stack-id: default }
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# CHECK: - { id: 0, name: '', type: default, offset: -528, size: 512, alignment: 1,
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# CHECK-NEXT: stack-id: default, callee-saved-register: '', callee-saved-restored: true,
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# CHECK-NEXT: local-offset: -512, debug-info-variable: '', debug-info-expression: '',
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# CHECK-NEXT: debug-info-location: '' }
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- { id: 1, size: 4, alignment: 4, stack-id: default }
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# CHECK: - { id: 1, name: '', type: default, offset: -532, size: 4, alignment: 4,
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# CHECK-NEXT: stack-id: default, callee-saved-register: '', callee-saved-restored: true,
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# CHECK-NEXT: local-offset: -516, debug-info-variable: '', debug-info-expression: '',
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# CHECK-NEXT: debug-info-location: '' }
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- { id: 2, size: 16, alignment: 16, stack-id: scalable-vector }
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# CHECK: - { id: 2, name: '', type: default, offset: -32, size: 16, alignment: 16,
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# CHECK-NEXT: stack-id: scalable-vector, callee-saved-register: '', callee-saved-restored: true,
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# CHECK-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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- { id: 3, name: StackGuardSlot, size: 8, alignment: 16, stack-id: scalable-vector }
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# CHECK: - { id: 3, name: StackGuardSlot, type: default, offset: -16, size: 8,
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# CHECK-NEXT: alignment: 16, stack-id: scalable-vector, callee-saved-register: '',
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# CHECK-NEXT: callee-saved-restored: true, debug-info-variable: '', debug-info-expression: '',
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# CHECK-NEXT: debug-info-location: '' }
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body: |
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bb.0:
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%25:gpr64common = LOAD_STACK_GUARD :: (dereferenceable invariant load (s64) from @__stack_chk_guard)
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STRXui killed %25, %stack.3.StackGuardSlot, 0 :: (volatile store (s64) into %stack.3.StackGuardSlot)
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%28:gpr64 = LDRXui %stack.3.StackGuardSlot, 0 :: (volatile load (s64) from %stack.3.StackGuardSlot)
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%29:gpr64common = LOAD_STACK_GUARD :: (dereferenceable invariant load (s64) from @__stack_chk_guard)
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RET_ReallyLR implicit undef $w0, implicit killed %28, implicit killed %29
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...
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