# RUN: llc -o - %s -mtriple=aarch64-windows -start-before=prologepilog \ # RUN: -stop-after=prologepilog | FileCheck %s # Check where the stack variable is placed # CHECK: - { id: 0, name: '', type: default, offset: -4, size: 4, alignment: 4, # CHECK-NEXT: stack-id: default, callee-saved-register: '', callee-saved-restored: true, # CHECK-NEXT: local-offset: -4, debug-info-variable: '', debug-info-expression: '', # CHECK-NEXT: debug-info-location: '' } # CHECK-NEXT: - { id: 1, name: '', type: spill-slot, offset: -16, size: 8, alignment: 16, # CHECK-NEXT: stack-id: default, callee-saved-register: '$x23', callee-saved-restored: true, # CHECK-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } # CHECK-NEXT: - { id: 2, name: '', type: spill-slot, offset: -24, size: 8, alignment: 8, # CHECK-NEXT: stack-id: default, callee-saved-register: '$x22', callee-saved-restored: true, # CHECK-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } # CHECK-NEXT: - { id: 3, name: '', type: spill-slot, offset: -32, size: 8, alignment: 8, # CHECK-NEXT: stack-id: default, callee-saved-register: '$x21', callee-saved-restored: true, # CHECK-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } # CHECK-NEXT: - { id: 4, name: '', type: spill-slot, offset: -40, size: 8, alignment: 8, # CHECK-NEXT: stack-id: default, callee-saved-register: '$x20', callee-saved-restored: true, # CHECK-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } # CHECK-NEXT: - { id: 5, name: '', type: spill-slot, offset: -48, size: 8, alignment: 8, # CHECK-NEXT: stack-id: default, callee-saved-register: '$x19', callee-saved-restored: true, # CHECK-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } # CHECK: early-clobber $sp = frame-setup STPXpre killed $x19, killed $x20, $sp, -6 :: (store (s64) into %stack.4), (store (s64) into %stack.5) # CHECK-NEXT: frame-setup SEH_SaveRegP_X 19, 20, -48 # CHECK-NEXT: frame-setup STPXi killed $x21, killed $x22, $sp, 2 :: (store (s64) into %stack.2), (store (s64) into %stack.3) # CHECK-NEXT: frame-setup SEH_SaveRegP 21, 22, 16 # CHECK-NEXT: frame-setup STRXui killed $x23, $sp, 4 :: (store (s64) into %stack.1) # CHECK-NEXT: frame-setup SEH_SaveReg 23, 32 # CHECK-NEXT: frame-setup SEH_PrologEnd ... --- name: func alignment: 4 exposesReturnsTwice: false legalized: false regBankSelected: false selected: false failedISel: false tracksRegLiveness: true hasWinCFI: false registers: [] liveins: [] frameInfo: isFrameAddressTaken: false isReturnAddressTaken: false hasStackMap: false hasPatchPoint: false stackSize: 0 offsetAdjustment: 0 maxAlignment: 4 adjustsStack: false hasCalls: false stackProtector: '' maxCallFrameSize: 0 cvBytesOfCalleeSavedRegisters: 0 hasOpaqueSPAdjustment: false hasVAStart: false hasMustTailInVarArgFunc: false localFrameSize: 4 savePoint: '' restorePoint: '' fixedStack: [] stack: - { id: 0, name: '', type: default, offset: 0, size: 4, alignment: 4, stack-id: default, callee-saved-register: '', callee-saved-restored: true, local-offset: -4, debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } callSites: [] constants: [] machineFunctionInfo: {} body: | bb.0.entry: liveins: $x0, $x23, $x21, $x22, $x19, $x20 renamable $x8 = ADDXri %stack.0, 0, 0 $x19 = ADDXrr $x0, $x8 $x20 = ADDXrr $x19, $x0 $x21 = ADDXrr $x20, killed $x19 $x22 = ADDXrr $x21, killed $x20 $x23 = ADDXrr $x22, killed $x21 $x0 = ADDXrr $x0, killed $x23 RET_ReallyLR ...