1# RUN: llc -mtriple=aarch64--linux-gnu -mattr=+sve -start-before=localstackalloc -stop-after=prologepilog -o - %s | FileCheck %s 2 3--- | 4 @__stack_chk_guard = external global ptr 5 define i32 @main(i32, ptr) { 6 %StackGuardSlot = alloca ptr 7 unreachable 8 } 9... 10--- 11name: main 12tracksRegLiveness: true 13frameInfo: 14# CHECK: stackSize: 544 15# CHECK: localFrameSize: 516 16 stackProtector: '%stack.3.StackGuardSlot' 17stack: 18# Stack objects 0 and 1 should end up in the local stack area, objects 2 and 3 19# should end up in the SVE stack area with 3 (the stack guard) on top. 20 - { id: 0, size: 512, alignment: 1, stack-id: default } 21# CHECK: - { id: 0, name: '', type: default, offset: -528, size: 512, alignment: 1, 22# CHECK-NEXT: stack-id: default, callee-saved-register: '', callee-saved-restored: true, 23# CHECK-NEXT: local-offset: -512, debug-info-variable: '', debug-info-expression: '', 24# CHECK-NEXT: debug-info-location: '' } 25 - { id: 1, size: 4, alignment: 4, stack-id: default } 26# CHECK: - { id: 1, name: '', type: default, offset: -532, size: 4, alignment: 4, 27# CHECK-NEXT: stack-id: default, callee-saved-register: '', callee-saved-restored: true, 28# CHECK-NEXT: local-offset: -516, debug-info-variable: '', debug-info-expression: '', 29# CHECK-NEXT: debug-info-location: '' } 30 - { id: 2, size: 16, alignment: 16, stack-id: scalable-vector } 31# CHECK: - { id: 2, name: '', type: default, offset: -32, size: 16, alignment: 16, 32# CHECK-NEXT: stack-id: scalable-vector, callee-saved-register: '', callee-saved-restored: true, 33# CHECK-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } 34 - { id: 3, name: StackGuardSlot, size: 8, alignment: 16, stack-id: scalable-vector } 35# CHECK: - { id: 3, name: StackGuardSlot, type: default, offset: -16, size: 8, 36# CHECK-NEXT: alignment: 16, stack-id: scalable-vector, callee-saved-register: '', 37# CHECK-NEXT: callee-saved-restored: true, debug-info-variable: '', debug-info-expression: '', 38# CHECK-NEXT: debug-info-location: '' } 39body: | 40 bb.0: 41 %25:gpr64common = LOAD_STACK_GUARD :: (dereferenceable invariant load (s64) from @__stack_chk_guard) 42 STRXui killed %25, %stack.3.StackGuardSlot, 0 :: (volatile store (s64) into %stack.3.StackGuardSlot) 43 %28:gpr64 = LDRXui %stack.3.StackGuardSlot, 0 :: (volatile load (s64) from %stack.3.StackGuardSlot) 44 %29:gpr64common = LOAD_STACK_GUARD :: (dereferenceable invariant load (s64) from @__stack_chk_guard) 45 RET_ReallyLR implicit undef $w0, implicit killed %28, implicit killed %29 46 47... 48