2018-10-31 03:24:51 +08:00
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# RUN: llc -o - %s -mtriple=aarch64-windows -start-after=prologepilog -filetype=obj \
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2018-10-27 14:13:06 +08:00
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# RUN: | llvm-readobj -unwind | FileCheck %s
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# This test case checks the basic validity of the .xdata section. It's
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# documented at:
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# https://docs.microsoft.com/en-us/cpp/build/arm64-exception-handling
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# We expect to see the following in the .xdata section:
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# CHECK: ExceptionData {
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# CHECK-NEXT: FunctionLength: 92
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# CHECK-NEXT: Version: 0
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# CHECK-NEXT: ExceptionData: No
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# CHECK-NEXT: EpiloguePacked: No
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# CHECK-NEXT: EpilogueScopes: 1
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# CHECK-NEXT: ByteCodeLength: 28
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# CHECK-NEXT: Prologue [
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# CHECK-NEXT: 0xc808 ; stp x19, x20, [sp, #64]
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# CHECK-NEXT: 0xd0c7 ; str x22, [sp, #56]
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# CHECK-NEXT: 0xd086 ; str x21, [sp, #48]
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# CHECK-NEXT: 0xc904 ; stp x23, x24, [sp, #32]
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# CHECK-NEXT: 0xc982 ; stp x25, x26, [sp, #16]
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# CHECK-NEXT: 0xce09 ; stp x27, x28, [sp, #-80]!
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# CHECK-NEXT: 0xe4 ; end
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# CHECK-NEXT: ]
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# CHECK-NEXT: EpilogueScopes [
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# CHECK-NEXT: EpilogueScope {
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# CHECK-NEXT: StartOffset: 15
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# CHECK-NEXT: EpilogueStartIndex: 13
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# CHECK-NEXT: Opcodes [
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# CHECK-NEXT: 0xc808 ; ldp x19, x20, [sp, #64]
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# CHECK-NEXT: 0xd086 ; ldr x21, [sp, #48]
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# CHECK-NEXT: 0xe3 ; nop
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# CHECK-NEXT: 0xd0c7 ; ldr x22, [sp, #56]
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# CHECK-NEXT: 0xc904 ; ldp x23, x24, [sp, #32]
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# CHECK-NEXT: 0xc982 ; ldp x25, x26, [sp, #16]
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# CHECK-NEXT: 0xce09 ; ldp x27, x28, [sp], #80
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# CHECK-NEXT: 0xe4 ; end
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# CHECK-NEXT: ]
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# CHECK-NEXT: }
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# CHECK-NEXT: ]
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# CHECK-NEXT: }
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...
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---
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name: test
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alignment: 2
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tracksRegLiveness: true
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hasWinCFI: true
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liveins:
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- { reg: '$w0' }
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frameInfo:
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stackSize: 80
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maxAlignment: 8
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maxCallFrameSize: 0
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hasOpaqueSPAdjustment: true
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stack:
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- { id: 0, type: spill-slot, offset: -8, size: 8, alignment: 8, stack-id: 0,
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callee-saved-register: '$x19' }
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- { id: 1, type: spill-slot, offset: -16, size: 8, alignment: 8, stack-id: 0,
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callee-saved-register: '$x20' }
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- { id: 2, type: spill-slot, offset: -24, size: 8, alignment: 8, stack-id: 0,
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callee-saved-register: '$x21' }
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- { id: 3, type: spill-slot, offset: -32, size: 8, alignment: 8, stack-id: 0,
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callee-saved-register: '$x22' }
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- { id: 4, type: spill-slot, offset: -40, size: 8, alignment: 8, stack-id: 0,
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callee-saved-register: '$x23' }
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- { id: 5, type: spill-slot, offset: -48, size: 8, alignment: 8, stack-id: 0,
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callee-saved-register: '$x24' }
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- { id: 6, type: spill-slot, offset: -56, size: 8, alignment: 8, stack-id: 0,
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callee-saved-register: '$x25' }
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- { id: 7, type: spill-slot, offset: -64, size: 8, alignment: 8, stack-id: 0,
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callee-saved-register: '$x26' }
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- { id: 8, type: spill-slot, offset: -72, size: 8, alignment: 8, stack-id: 0,
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callee-saved-register: '$x27' }
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- { id: 9, type: spill-slot, offset: -80, size: 8, alignment: 8, stack-id: 0,
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callee-saved-register: '$x28' }
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body: |
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bb.0.entry:
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liveins: $x0, $x1, $x27, $x28, $x25, $x26, $x23, $x24, $x21, $x22, $x19, $x20
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early-clobber $sp = frame-setup STPXpre killed $x27, killed $x28, $sp, -10 :: (store 8 into %stack.8), (store 8 into %stack.9)
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frame-setup SEH_SaveRegP_X 27, 28, -80
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frame-setup STPXi killed $x25, killed $x26, $sp, 2 :: (store 8 into %stack.6), (store 8 into %stack.7)
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frame-setup SEH_SaveRegP 25, 26, 16
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frame-setup STPXi killed $x23, killed $x24, $sp, 4 :: (store 8 into %stack.4), (store 8 into %stack.5)
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frame-setup SEH_SaveRegP 23, 24, 32
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frame-setup STRXui killed $x21, $sp, 6 :: (store 8 into %stack.2)
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frame-setup SEH_SaveReg 21, 48
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frame-setup STRXui killed $x22, $sp, 7 :: (store 8 into %stack.3)
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frame-setup SEH_SaveReg 22, 56
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frame-setup STPXi killed $x19, killed $x20, $sp, 8 :: (store 8 into %stack.0), (store 8 into %stack.1)
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frame-setup SEH_SaveRegP 19, 20, 64
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frame-setup SEH_PrologEnd
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$x19 = ADDXrr $x0, killed $x1
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$x20 = ADDXrr $x19, killed $x0
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$x21 = ADDXrr $x20, killed $x19
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$x22 = ADDXrr $x21, killed $x20
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$x23 = ADDXrr $x22, killed $x21
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$x24 = ADDXrr $x23, killed $x22
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$x25 = ADDXrr $x24, killed $x23
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$x26 = ADDXrr $x25, killed $x24
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$x27 = ADDXrr $x26, killed $x25
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$x28 = ADDXrr $x27, killed $x26
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frame-destroy SEH_EpilogStart
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$x19, $x20 = frame-destroy LDPXi $sp, 8 :: (load 8 from %stack.0), (load 8 from %stack.1)
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frame-destroy SEH_SaveRegP 19, 20, 64
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$x21 = frame-destroy LDRXui $sp, 6 :: (load 8 from %stack.2)
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frame-destroy SEH_SaveReg 21, 48
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$x0 = COPY $x28
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frame-destroy SEH_Nop
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$x21 = frame-destroy LDRXui $sp, 6 :: (load 8 from %stack.2)
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frame-destroy SEH_SaveReg 22, 56
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$x23, $x24 = frame-destroy LDPXi $sp, 4 :: (load 8 from %stack.4), (load 8 from %stack.5)
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frame-destroy SEH_SaveRegP 23, 24, 32
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$x25, $x26 = frame-destroy LDPXi $sp, 2 :: (load 8 from %stack.6), (load 8 from %stack.7)
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frame-destroy SEH_SaveRegP 25, 26, 16
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early-clobber $sp, $x27, $x28 = frame-destroy LDPXpost $sp, 10 :: (load 8 from %stack.8), (load 8 from %stack.9)
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frame-destroy SEH_SaveRegP_X 27, 28, -80
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frame-destroy SEH_EpilogEnd
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RET_ReallyLR implicit $x0
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...
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