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7d3a8434aa
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
139 lines
5.7 KiB
YAML
139 lines
5.7 KiB
YAML
# RUN: llc -o - %s -mtriple=aarch64-windows -start-after=prologepilog \
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# RUN: -filetype=obj | llvm-readobj -unwind | FileCheck %s
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# Check save_fplr_x, set_fp, alloc_s
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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: 8
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# CHECK-NEXT: Prologue [
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# CHECK-NEXT: 0x02 ; sub sp, #32
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# CHECK-NEXT: 0xe1 ; mov fp, sp
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# CHECK-NEXT: 0x81 ; stp x29, x30, [sp, #-16]!
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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: 20
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# CHECK-NEXT: EpilogueStartIndex: 4
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# CHECK-NEXT: Opcodes [
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# CHECK-NEXT: 0xe1 ; mov fp, sp
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# CHECK-NEXT: 0x81 ; ldp x29, x30, [sp], #16
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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: '?func@@YAHHHHH@Z'
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alignment: 3
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exposesReturnsTwice: false
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legalized: false
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regBankSelected: false
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selected: false
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failedISel: false
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tracksRegLiveness: true
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hasWinCFI: true
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registers:
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liveins:
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- { reg: '$w0', virtual-reg: '' }
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- { reg: '$w1', virtual-reg: '' }
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- { reg: '$w2', virtual-reg: '' }
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- { reg: '$w3', virtual-reg: '' }
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frameInfo:
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isFrameAddressTaken: false
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isReturnAddressTaken: false
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hasStackMap: false
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hasPatchPoint: false
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stackSize: 48
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offsetAdjustment: 0
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maxAlignment: 8
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adjustsStack: true
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hasCalls: true
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stackProtector: ''
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maxCallFrameSize: 0
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hasOpaqueSPAdjustment: false
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hasVAStart: false
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hasMustTailInVarArgFunc: false
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localFrameSize: 24
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savePoint: ''
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restorePoint: ''
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fixedStack:
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stack:
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- { id: 0, name: '', type: default, offset: -20, size: 4, alignment: 4,
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stack-id: 0, callee-saved-register: '', callee-saved-restored: true,
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local-offset: -4, debug-info-variable: '', debug-info-expression: '',
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debug-info-location: '' }
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- { id: 1, name: '', type: default, offset: -24, size: 4, alignment: 4,
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stack-id: 0, callee-saved-register: '', callee-saved-restored: true,
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local-offset: -8, debug-info-variable: '', debug-info-expression: '',
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debug-info-location: '' }
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- { id: 2, name: '', type: default, offset: -28, size: 4, alignment: 4,
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stack-id: 0, callee-saved-register: '', callee-saved-restored: true,
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local-offset: -12, debug-info-variable: '', debug-info-expression: '',
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debug-info-location: '' }
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- { id: 3, name: '', type: default, offset: -32, size: 4, alignment: 4,
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stack-id: 0, callee-saved-register: '', callee-saved-restored: true,
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local-offset: -16, debug-info-variable: '', debug-info-expression: '',
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debug-info-location: '' }
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- { id: 4, name: '', type: default, offset: -40, size: 8, alignment: 8,
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stack-id: 0, callee-saved-register: '', callee-saved-restored: true,
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local-offset: -24, debug-info-variable: '', debug-info-expression: '',
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debug-info-location: '' }
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- { id: 5, name: '', type: variable-sized, offset: -40,
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alignment: 1, stack-id: 0, callee-saved-register: '', callee-saved-restored: true,
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local-offset: -24, debug-info-variable: '', debug-info-expression: '',
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debug-info-location: '' }
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- { id: 6, name: '', type: spill-slot, offset: -48, size: 8, alignment: 8,
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stack-id: 0, callee-saved-register: '', callee-saved-restored: true,
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debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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- { id: 7, name: '', type: spill-slot, offset: -8, size: 8, alignment: 8,
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stack-id: 0, callee-saved-register: '$fp', callee-saved-restored: true,
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debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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- { id: 8, name: '', type: spill-slot, offset: -16, size: 8, alignment: 8,
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stack-id: 0, callee-saved-register: '$lr', callee-saved-restored: true,
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debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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constants:
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body: |
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bb.0.entry:
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liveins: $w0, $w1, $w2, $w3, $lr
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early-clobber $sp = frame-setup STPXpre killed $fp, killed $lr, $sp, -2 :: (store 8 into %stack.7), (store 8 into %stack.8)
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frame-setup SEH_SaveFPLR_X -16
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$fp = frame-setup ADDXri $sp, 0, 0
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frame-setup SEH_SetFP
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$sp = frame-setup SUBXri $sp, 32, 0
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frame-setup SEH_StackAlloc 32
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frame-setup SEH_PrologEnd
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STURWi killed renamable $w3, $fp, -4
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STURWi killed renamable $w2, $fp, -8
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STURWi killed renamable $w1, $fp, -12
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STURWi killed renamable $w0, $fp, -16
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renamable $x8 = LDURSWi $fp, -16
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renamable $x8 = ADDXri killed renamable $x8, 15, 0
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renamable $x8 = UBFMXri killed renamable $x8, 4, 63
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$x15 = COPY renamable $x8
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STURXi killed $x8, $fp, -32 :: (store 8 into %stack.6)
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BL &__chkstk, csr_aarch64_stackprobe_windows, implicit-def dead $lr, implicit $sp, implicit killed $x15
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renamable $x8 = COPY $sp
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$x15 = LDURXi $fp, -32 :: (load 8 from %stack.6)
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renamable $x8 = SUBSXrs killed renamable $x8, killed renamable $x15, 4, implicit-def dead $nzcv
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$sp = COPY renamable $x8
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STURXi killed renamable $x8, $fp, -24
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renamable $x0 = LDURXi $fp, -24
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renamable $w1 = COPY $wzr
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$w0 = COPY killed renamable $w1
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frame-destroy SEH_EpilogStart
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$sp = frame-destroy ADDXri $fp, 0, 0
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frame-destroy SEH_SetFP
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early-clobber $sp, $fp, $lr = frame-destroy LDPXpost $sp, 2
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frame-destroy SEH_SaveFPLR_X -16
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frame-destroy SEH_EpilogEnd
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RET_ReallyLR implicit killed $w0
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...
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