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1# RUN: llc -o - %s -mtriple=aarch64-windows -start-after=prologepilog -filetype=obj \2# RUN: | llvm-readobj --unwind - | FileCheck %s3# RUN: llc -o - %s -mtriple=aarch64-windows -run-pass=aarch64-ldst-opt \4# RUN: | FileCheck %s --check-prefix=CHECK-LDSTOPT5# This test case checks the basic validity of the .xdata section. It's6# documented at:7# https://docs.microsoft.com/en-us/cpp/build/arm64-exception-handling8 9# Also test the generated assembler SEH directives.10# RUN: llc -o - %s -mtriple=aarch64-windows -start-after=prologepilog -filetype=asm \11# RUN: | FileCheck %s --check-prefix=ASM12 13# We expect to see the following in the .xdata section:14 15# CHECK: ExceptionData {16# CHECK-NEXT: FunctionLength: 9617# CHECK-NEXT: Version: 018# CHECK-NEXT: ExceptionData: No19# CHECK-NEXT: EpiloguePacked: Yes20# CHECK-NEXT: EpilogueOffset: 1321# CHECK-NEXT: ByteCodeLength: 2822# CHECK-NEXT: Prologue [23# CHECK-NEXT: 0xc808 ; stp x19, x20, [sp, #64]24# CHECK-NEXT: 0xd0c7 ; str x22, [sp, #56]25# CHECK-NEXT: 0xd086 ; str x21, [sp, #48]26# CHECK-NEXT: 0xc904 ; stp x23, x24, [sp, #32]27# CHECK-NEXT: 0xc982 ; stp x25, x26, [sp, #16]28# CHECK-NEXT: 0xce09 ; stp x27, x28, [sp, #-80]!29# CHECK-NEXT: 0xe4 ; end30# CHECK-NEXT: ]31# CHECK-NEXT: Epilogue [32# CHECK-NEXT: 0xc808 ; ldp x19, x20, [sp, #64]33# CHECK-NEXT: 0xd086 ; ldr x21, [sp, #48]34# CHECK-NEXT: 0xe3 ; nop35# CHECK-NEXT: 0xd0c7 ; ldr x22, [sp, #56]36# CHECK-NEXT: 0xc904 ; ldp x23, x24, [sp, #32]37# CHECK-NEXT: 0xc982 ; ldp x25, x26, [sp, #16]38# CHECK-NEXT: 0xce09 ; ldp x27, x28, [sp], #8039# CHECK-NEXT: 0xe4 ; end40# CHECK-NEXT: ]41# CHECK-NEXT: }42 43# Check that the load-store optimizer does not merge the two44# callee-saved stores in the prologue.45# CHECK-LDSTOPT: name: test46# CHECK-LDSTOPT: frame-setup STRXui killed $x21, $sp, 647# CHECK-LDSTOPT: frame-setup STRXui killed $x22, $sp, 748 49# ASM-LABEL: test:50# ASM: .seh_proc test51# ASM: .seh_save_regp_x x27, 8052# ASM: .seh_save_regp x25, 1653# ASM: .seh_save_regp x23, 3254# ASM: .seh_save_reg x21, 4855# ASM: .seh_save_reg x22, 5656# ASM: .seh_save_regp x19, 6457# ASM: .seh_endprologue58 59# ASM: .seh_startepilogue60# ASM: .seh_save_regp x19, 6461# ASM: .seh_save_reg x21, 4862# ASM: .seh_nop63# ASM: .seh_save_reg x22, 5664# ASM: .seh_save_regp x23, 3265# ASM: .seh_save_regp x25, 1666# ASM: .seh_save_regp_x x27, 8067# ASM: .seh_endepilogue68 69# ASM: .seh_endfunclet70# ASM: .seh_endproc71 72...73---74name: test75alignment: 476tracksRegLiveness: true77hasWinCFI: true78liveins:79 - { reg: '$w0' }80frameInfo:81 stackSize: 8082 maxAlignment: 883 maxCallFrameSize: 084 hasOpaqueSPAdjustment: true85stack:86 - { id: 0, type: spill-slot, offset: -8, size: 8, alignment: 8, stack-id: default,87 callee-saved-register: '$x19' }88 - { id: 1, type: spill-slot, offset: -16, size: 8, alignment: 8, stack-id: default,89 callee-saved-register: '$x20' }90 - { id: 2, type: spill-slot, offset: -24, size: 8, alignment: 8, stack-id: default,91 callee-saved-register: '$x21' }92 - { id: 3, type: spill-slot, offset: -32, size: 8, alignment: 8, stack-id: default,93 callee-saved-register: '$x22' }94 - { id: 4, type: spill-slot, offset: -40, size: 8, alignment: 8, stack-id: default,95 callee-saved-register: '$x23' }96 - { id: 5, type: spill-slot, offset: -48, size: 8, alignment: 8, stack-id: default,97 callee-saved-register: '$x24' }98 - { id: 6, type: spill-slot, offset: -56, size: 8, alignment: 8, stack-id: default,99 callee-saved-register: '$x25' }100 - { id: 7, type: spill-slot, offset: -64, size: 8, alignment: 8, stack-id: default,101 callee-saved-register: '$x26' }102 - { id: 8, type: spill-slot, offset: -72, size: 8, alignment: 8, stack-id: default,103 callee-saved-register: '$x27' }104 - { id: 9, type: spill-slot, offset: -80, size: 8, alignment: 8, stack-id: default,105 callee-saved-register: '$x28' }106body: |107 bb.0.entry:108 liveins: $x0, $x1, $x27, $x28, $x25, $x26, $x23, $x24, $x21, $x22, $x19, $x20109 early-clobber $sp = frame-setup STPXpre killed $x27, killed $x28, $sp, -10 :: (store (s64) into %stack.8), (store (s64) into %stack.9)110 frame-setup SEH_SaveRegP_X 27, 28, -80111 frame-setup STPXi killed $x25, killed $x26, $sp, 2 :: (store (s64) into %stack.6), (store (s64) into %stack.7)112 frame-setup SEH_SaveRegP 25, 26, 16113 frame-setup STPXi killed $x23, killed $x24, $sp, 4 :: (store (s64) into %stack.4), (store (s64) into %stack.5)114 frame-setup SEH_SaveRegP 23, 24, 32115 frame-setup STRXui killed $x21, $sp, 6 :: (store (s64) into %stack.2)116 frame-setup SEH_SaveReg 21, 48117 frame-setup STRXui killed $x22, $sp, 7 :: (store (s64) into %stack.3)118 frame-setup SEH_SaveReg 22, 56119 frame-setup STPXi killed $x19, killed $x20, $sp, 8 :: (store (s64) into %stack.0), (store (s64) into %stack.1)120 frame-setup SEH_SaveRegP 19, 20, 64121 frame-setup SEH_PrologEnd122 $x19 = ADDXrr $x0, killed $x1123 $x20 = ADDXrr $x19, killed $x0124 $x21 = ADDXrr $x20, killed $x19125 $x22 = ADDXrr $x21, killed $x20126 $x23 = ADDXrr $x22, killed $x21127 $x24 = ADDXrr $x23, killed $x22128 $x25 = ADDXrr $x24, killed $x23129 $x26 = ADDXrr $x25, killed $x24130 $x27 = ADDXrr $x26, killed $x25131 $x28 = ADDXrr $x27, killed $x26132 frame-destroy SEH_EpilogStart133 $x19, $x20 = frame-destroy LDPXi $sp, 8 :: (load (s64) from %stack.0), (load (s64) from %stack.1)134 frame-destroy SEH_SaveRegP 19, 20, 64135 $x21 = frame-destroy LDRXui $sp, 6 :: (load (s64) from %stack.2)136 frame-destroy SEH_SaveReg 21, 48137 $x0 = COPY $x28138 frame-destroy SEH_Nop139 $x21 = frame-destroy LDRXui $sp, 6 :: (load (s64) from %stack.2)140 frame-destroy SEH_SaveReg 22, 56141 $x23, $x24 = frame-destroy LDPXi $sp, 4 :: (load (s64) from %stack.4), (load (s64) from %stack.5)142 frame-destroy SEH_SaveRegP 23, 24, 32143 $x25, $x26 = frame-destroy LDPXi $sp, 2 :: (load (s64) from %stack.6), (load (s64) from %stack.7)144 frame-destroy SEH_SaveRegP 25, 26, 16145 early-clobber $sp, $x27, $x28 = frame-destroy LDPXpost $sp, 10 :: (load (s64) from %stack.8), (load (s64) from %stack.9)146 frame-destroy SEH_SaveRegP_X 27, 28, -80147 frame-destroy SEH_EpilogEnd148 RET_ReallyLR implicit $x0149 150...151