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llvm-project/llvm/test/CodeGen/AArch64/wineh4.mir

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[ARM64][Windows] MCLayer support for exception handling Add ARM64 unwind codes to MCLayer, as well SEH directives that will be emitted by the frame lowering patch to follow. We only emit unwind codes into object object files for now. Differential Revision: https://reviews.llvm.org/D50166 llvm-svn: 345450
2018-10-27 14:13:06 +08:00
# RUN: llc -o - %s -mtriple=aarch64-windows -start-after=prologepilog \
[AArch64] [Windows] SEH opcodes should be scheduling boundaries. Prevents the post-RA scheduler from modifying the prologue sequences emitting by frame lowering. This is roughly similar to what we do for other targets: TargetInstrInfo::isSchedulingBoundary checks isPosition(), which checks for CFI_INSTRUCTION. isSEHInstruction is taken from D50288; it'll land with whatever patch lands first. Differential Revision: https://reviews.llvm.org/D53851 llvm-svn: 345634
2018-10-31 03:24:51 +08:00
# RUN: -disable-branch-fold -filetype=obj \
[ARM64][Windows] MCLayer support for exception handling Add ARM64 unwind codes to MCLayer, as well SEH directives that will be emitted by the frame lowering patch to follow. We only emit unwind codes into object object files for now. Differential Revision: https://reviews.llvm.org/D50166 llvm-svn: 345450
2018-10-27 14:13:06 +08:00
# RUN: | llvm-readobj -unwind | FileCheck %s
[ARM64][Windows] Share unwind codes between epilogues There are cases where we have multiple epilogues that have the exact same unwind code sequence. In that case, the epilogues can share the same unwind codes in the .xdata section. This should get us past the assert "SEH unwind data splitting not yet implemented" in many cases. We still need to add support for generating multiple .pdata/.xdata sections for those functions that need to be split into fragments. Differential Revision: https://reviews.llvm.org/D56813 llvm-svn: 351421
2019-01-17 17:45:17 +08:00
# Check that identical multiple epilgoues are correctly shared in .xdata.
[ARM64][Windows] MCLayer support for exception handling Add ARM64 unwind codes to MCLayer, as well SEH directives that will be emitted by the frame lowering patch to follow. We only emit unwind codes into object object files for now. Differential Revision: https://reviews.llvm.org/D50166 llvm-svn: 345450
2018-10-27 14:13:06 +08:00
# CHECK: ExceptionData {
# CHECK-NEXT: FunctionLength: 164
# CHECK-NEXT: Version: 0
# CHECK-NEXT: ExceptionData: No
# CHECK-NEXT: EpiloguePacked: No
# CHECK-NEXT: EpilogueScopes: 2
[ARM64][Windows] Share unwind codes between epilogues There are cases where we have multiple epilogues that have the exact same unwind code sequence. In that case, the epilogues can share the same unwind codes in the .xdata section. This should get us past the assert "SEH unwind data splitting not yet implemented" in many cases. We still need to add support for generating multiple .pdata/.xdata sections for those functions that need to be split into fragments. Differential Revision: https://reviews.llvm.org/D56813 llvm-svn: 351421
2019-01-17 17:45:17 +08:00
# CHECK-NEXT: ByteCodeLength: 32
[ARM64][Windows] MCLayer support for exception handling Add ARM64 unwind codes to MCLayer, as well SEH directives that will be emitted by the frame lowering patch to follow. We only emit unwind codes into object object files for now. Differential Revision: https://reviews.llvm.org/D50166 llvm-svn: 345450
2018-10-27 14:13:06 +08:00
# CHECK-NEXT: Prologue [
# CHECK-NEXT: 0xc80c ; stp x19, x20, [sp, #96]
# CHECK-NEXT: 0xc88a ; stp x21, x22, [sp, #80]
# CHECK-NEXT: 0xc908 ; stp x23, x24, [sp, #64]
# CHECK-NEXT: 0xc986 ; stp x25, x26, [sp, #48]
# CHECK-NEXT: 0xca04 ; stp x27, x28, [sp, #32]
# CHECK-NEXT: 0xd802 ; stp d8, d9, [sp, #16]
# CHECK-NEXT: 0xda8d ; stp d10, d11, [sp, #-112]!
# CHECK-NEXT: 0xe4 ; end
# CHECK-NEXT: ]
# CHECK-NEXT: EpilogueScopes [
# CHECK-NEXT: EpilogueScope {
# CHECK-NEXT: StartOffset: 16
# CHECK-NEXT: EpilogueStartIndex: 15
# CHECK-NEXT: Opcodes [
# CHECK-NEXT: 0xc80c ; ldp x19, x20, [sp, #96]
# CHECK-NEXT: 0xc88a ; ldp x21, x22, [sp, #80]
# CHECK-NEXT: 0xc908 ; ldp x23, x24, [sp, #64]
# CHECK-NEXT: 0xc986 ; ldp x25, x26, [sp, #48]
# CHECK-NEXT: 0xca04 ; ldp x27, x28, [sp, #32]
# CHECK-NEXT: 0xd802 ; ldp d8, d9, [sp, #16]
# CHECK-NEXT: 0xda8d ; ldp d10, d11, [sp], #112
# CHECK-NEXT: 0xe4 ; end
# CHECK-NEXT: ]
# CHECK-NEXT: }
# CHECK-NEXT: EpilogueScope {
# CHECK-NEXT: StartOffset: 33
[ARM64][Windows] Share unwind codes between epilogues There are cases where we have multiple epilogues that have the exact same unwind code sequence. In that case, the epilogues can share the same unwind codes in the .xdata section. This should get us past the assert "SEH unwind data splitting not yet implemented" in many cases. We still need to add support for generating multiple .pdata/.xdata sections for those functions that need to be split into fragments. Differential Revision: https://reviews.llvm.org/D56813 llvm-svn: 351421
2019-01-17 17:45:17 +08:00
# CHECK-NEXT: EpilogueStartIndex: 15
[ARM64][Windows] MCLayer support for exception handling Add ARM64 unwind codes to MCLayer, as well SEH directives that will be emitted by the frame lowering patch to follow. We only emit unwind codes into object object files for now. Differential Revision: https://reviews.llvm.org/D50166 llvm-svn: 345450
2018-10-27 14:13:06 +08:00
# CHECK-NEXT: Opcodes [
# CHECK-NEXT: 0xc80c ; ldp x19, x20, [sp, #96]
# CHECK-NEXT: 0xc88a ; ldp x21, x22, [sp, #80]
# CHECK-NEXT: 0xc908 ; ldp x23, x24, [sp, #64]
# CHECK-NEXT: 0xc986 ; ldp x25, x26, [sp, #48]
# CHECK-NEXT: 0xca04 ; ldp x27, x28, [sp, #32]
# CHECK-NEXT: 0xd802 ; ldp d8, d9, [sp, #16]
# CHECK-NEXT: 0xda8d ; ldp d10, d11, [sp], #112
# CHECK-NEXT: 0xe4 ; end
# CHECK-NEXT: ]
# CHECK-NEXT: }
# CHECK-NEXT: ]
# CHECK-NEXT: }
...
---
name: test
alignment: 2
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
failedISel: false
tracksRegLiveness: true
hasWinCFI: true
registers:
liveins:
- { reg: '$w0', virtual-reg: '' }
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 112
offsetAdjustment: 0
maxAlignment: 8
adjustsStack: false
hasCalls: false
stackProtector: ''
maxCallFrameSize: 0
hasOpaqueSPAdjustment: true
hasVAStart: false
hasMustTailInVarArgFunc: false
localFrameSize: 0
savePoint: ''
restorePoint: ''
fixedStack:
stack:
- { id: 0, name: '', type: spill-slot, offset: -8, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$x19', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 1, name: '', type: spill-slot, offset: -16, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$x20', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 2, name: '', type: spill-slot, offset: -24, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$x21', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 3, name: '', type: spill-slot, offset: -32, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$x22', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 4, name: '', type: spill-slot, offset: -40, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$x23', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 5, name: '', type: spill-slot, offset: -48, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$x24', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 6, name: '', type: spill-slot, offset: -56, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$x25', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 7, name: '', type: spill-slot, offset: -64, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$x26', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 8, name: '', type: spill-slot, offset: -72, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$x27', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 9, name: '', type: spill-slot, offset: -80, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$x28', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 10, name: '', type: spill-slot, offset: -88, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$d8', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 11, name: '', type: spill-slot, offset: -96, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$d9', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 12, name: '', type: spill-slot, offset: -104, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$d10', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 13, name: '', type: spill-slot, offset: -112, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$d11', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
constants:
body: |
bb.0.entry:
successors: %bb.2(0x40000000), %bb.1(0x40000000)
liveins: $x0, $x1, $d0, $d1, $d10, $d11, $d8, $d9, $x27, $x28, $x25, $x26, $x23, $x24, $x21, $x22, $x19, $x20
early-clobber $sp = frame-setup STPDpre killed $d10, killed $d11, $sp, -14 :: (store 8 into %stack.12), (store 8 into %stack.13)
frame-setup SEH_SaveFRegP_X 10, 11, -112
frame-setup STPDi killed $d8, killed $d9, $sp, 2 :: (store 8 into %stack.10), (store 8 into %stack.11)
frame-setup SEH_SaveFRegP 8, 9, 16
frame-setup STPXi killed $x27, killed $x28, $sp, 4 :: (store 8 into %stack.8), (store 8 into %stack.9)
frame-setup SEH_SaveRegP 27, 28, 32
frame-setup STPXi killed $x25, killed $x26, $sp, 6 :: (store 8 into %stack.6), (store 8 into %stack.7)
frame-setup SEH_SaveRegP 25, 26, 48
frame-setup STPXi killed $x23, killed $x24, $sp, 8 :: (store 8 into %stack.4), (store 8 into %stack.5)
frame-setup SEH_SaveRegP 23, 24, 64
frame-setup STPXi killed $x21, killed $x22, $sp, 10 :: (store 8 into %stack.2), (store 8 into %stack.3)
frame-setup SEH_SaveRegP 21, 22, 80
frame-setup STPXi killed $x19, killed $x20, $sp, 12 :: (store 8 into %stack.0), (store 8 into %stack.1)
frame-setup SEH_SaveRegP 19, 20, 96
frame-setup SEH_PrologEnd
frame-setup CFI_INSTRUCTION def_cfa_offset 112
frame-setup CFI_INSTRUCTION offset $w19, -8
frame-setup CFI_INSTRUCTION offset $w20, -16
frame-setup CFI_INSTRUCTION offset $w21, -24
frame-setup CFI_INSTRUCTION offset $w22, -32
frame-setup CFI_INSTRUCTION offset $w23, -40
frame-setup CFI_INSTRUCTION offset $w24, -48
frame-setup CFI_INSTRUCTION offset $w25, -56
frame-setup CFI_INSTRUCTION offset $w26, -64
frame-setup CFI_INSTRUCTION offset $w27, -72
frame-setup CFI_INSTRUCTION offset $w28, -80
frame-setup CFI_INSTRUCTION offset $b8, -88
frame-setup CFI_INSTRUCTION offset $b9, -96
frame-setup CFI_INSTRUCTION offset $b10, -104
frame-setup CFI_INSTRUCTION offset $b11, -112
$x19 = ADDXrr $x0, killed $x1
$d8 = FADDDrr killed $d0, $d1
$d9 = FADDDrr $d8, $d1
$d10 = FADDDrr $d9, $d8
$d11 = FADDDrr killed $d9, $d10
$x20 = SUBSXrr $x19, killed $x0, implicit-def $nzcv
Bcc 1, %bb.2, implicit killed $nzcv
B %bb.1
bb.1:
liveins: $x19, $x20
$x21 = ADDXrr $x20, killed $x19
$x22 = ADDXrr $x21, killed $x20
$x23 = ADDXrr $x22, killed $x21
$x24 = ADDXrr $x23, killed $x22
$x25 = ADDXrr $x24, killed $x23
$x26 = ADDXrr $x25, killed $x24
$x27 = ADDXrr $x26, killed $x25
$x28 = ADDXrr $x27, killed $x26
$x0 = COPY $x28
frame-destroy SEH_EpilogStart
$x19, $x20 = frame-destroy LDPXi $sp, 12 :: (load 8 from %stack.0), (load 8 from %stack.1)
frame-destroy SEH_SaveRegP 19, 20, 96
$x21, $x22 = frame-destroy LDPXi $sp, 10 :: (load 8 from %stack.2), (load 8 from %stack.3)
frame-destroy SEH_SaveRegP 21, 22, 80
$x23, $x24 = frame-destroy LDPXi $sp, 8 :: (load 8 from %stack.4), (load 8 from %stack.5)
frame-destroy SEH_SaveRegP 23, 24, 64
$x25, $x26 = frame-destroy LDPXi $sp, 6 :: (load 8 from %stack.6), (load 8 from %stack.7)
frame-destroy SEH_SaveRegP 25, 26, 48
$x27, $x28 = frame-destroy LDPXi $sp, 4 :: (load 8 from %stack.8), (load 8 from %stack.9)
frame-destroy SEH_SaveRegP 27, 28, 32
$d8, $d9 = frame-destroy LDPDi $sp, 2 :: (load 8 from %stack.10), (load 8 from %stack.11)
frame-destroy SEH_SaveFRegP 8, 9, 16
early-clobber $sp, $d10, $d11 = frame-destroy LDPDpost $sp, 14 :: (load 8 from %stack.12), (load 8 from %stack.13)
frame-destroy SEH_SaveFRegP_X 10, 11, -112
frame-destroy SEH_EpilogEnd
RET_ReallyLR implicit $x0
bb.2:
liveins: $x28, $d11
$x0 = COPY $d11
$x0 = ADDXrr $x0, killed $x28
frame-destroy SEH_EpilogStart
$x19, $x20 = frame-destroy LDPXi $sp, 12 :: (load 8 from %stack.0), (load 8 from %stack.1)
frame-destroy SEH_SaveRegP 19, 20, 96
$x21, $x22 = frame-destroy LDPXi $sp, 10 :: (load 8 from %stack.2), (load 8 from %stack.3)
frame-destroy SEH_SaveRegP 21, 22, 80
$x23, $x24 = frame-destroy LDPXi $sp, 8 :: (load 8 from %stack.4), (load 8 from %stack.5)
frame-destroy SEH_SaveRegP 23, 24, 64
$x25, $x26 = frame-destroy LDPXi $sp, 6 :: (load 8 from %stack.6), (load 8 from %stack.7)
frame-destroy SEH_SaveRegP 25, 26, 48
$x27, $x28 = frame-destroy LDPXi $sp, 4 :: (load 8 from %stack.8), (load 8 from %stack.9)
frame-destroy SEH_SaveRegP 27, 28, 32
$d8, $d9 = frame-destroy LDPDi $sp, 2 :: (load 8 from %stack.10), (load 8 from %stack.11)
frame-destroy SEH_SaveFRegP 8, 9, 16
early-clobber $sp, $d10, $d11 = frame-destroy LDPDpost $sp, 14 :: (load 8 from %stack.12), (load 8 from %stack.13)
frame-destroy SEH_SaveFRegP_X 10, 11, -112
frame-destroy SEH_EpilogEnd
RET_ReallyLR implicit $x0
...