225 lines
9.9 KiB
YAML
225 lines
9.9 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 that that the large stack allocation is correctly represented in .xdata.
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# CHECK: ExceptionData {
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# CHECK-NEXT: FunctionLength: 156
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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: 20
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# CHECK-NEXT: Prologue [
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# CHECK-NEXT: 0xe002dac9 ; sub sp, #2993296
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# CHECK-NEXT: 0xe3 ; nop
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# CHECK-NEXT: 0xe3 ; nop
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# CHECK-NEXT: 0x42 ; stp x29, x30, [sp, #16]
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# CHECK-NEXT: 0xd53f ; str x28, [sp, #-256]!
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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: 34
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# CHECK-NEXT: EpilogueStartIndex: 10
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# CHECK-NEXT: Opcodes [
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# CHECK-NEXT: 0xe002da00 ; add sp, #2990080
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# CHECK-NEXT: 0xc0c9 ; add sp, #3216
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# CHECK-NEXT: 0x42 ; ldp x29, x30, [sp, #16]
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# CHECK-NEXT: 0xd53f ; ldr x28, [sp], #256
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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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target datalayout = "e-m:w-p:64:64-i32:32-i64:64-i128:128-n32:64-S128"
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target triple = "aarch64-unknown-windows-msvc19.11.0"
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; Function Attrs: noinline optnone
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define dso_local i32 @"?func@@YAHH@Z"(i32 %i) #0 {
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entry:
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%retval = alloca i32, align 4
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%i.addr = alloca i32, align 4
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%A = alloca [748193 x i32], align 4
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%a = alloca i32, align 4
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%B = alloca [123 x i32], align 4
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store i32 %i, i32* %i.addr, align 4
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%0 = load i32, i32* %i.addr, align 4
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%add = add nsw i32 %0, 2
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store i32 %add, i32* %a, align 4
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%call = call i32 @"?func2@@YAHXZ"()
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%1 = load i32, i32* %i.addr, align 4
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%cmp = icmp sgt i32 %1, 2
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br i1 %cmp, label %if.then, label %if.else
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if.then: ; preds = %entry
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%call1 = call i32 @"?func2@@YAHXZ"()
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store i32 %call1, i32* %retval, align 4
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br label %return
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if.else: ; preds = %entry
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%arraydecay = getelementptr inbounds [123 x i32], [123 x i32]* %B, i32 0, i32 0
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%call2 = call i32 @"?func3@@YAHPEAH@Z"(i32* %arraydecay)
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store i32 %call2, i32* %retval, align 4
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br label %return
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return: ; preds = %if.else, %if.then
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%2 = load i32, i32* %retval, align 4
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ret i32 %2
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}
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declare dso_local i32 @"?func2@@YAHXZ"() #1
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declare dso_local i32 @"?func3@@YAHPEAH@Z"(i32*) #1
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; Function Attrs: nounwind
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declare void @llvm.stackprotector(i8*, i8**) #2
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attributes #0 = { noinline optnone "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="generic" "target-features"="+neon" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="generic" "target-features"="+neon" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #2 = { nounwind }
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!llvm.module.flags = !{!0}
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!0 = !{i32 1, !"wchar_size", i32 2}
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...
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---
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name: '?func@@YAHH@Z'
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alignment: 4
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exposesReturnsTwice: false
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legalized: true
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regBankSelected: true
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selected: true
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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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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: 2993328
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offsetAdjustment: 0
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maxAlignment: 16
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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: 2993276
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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: retval, type: default, offset: -36, size: 4, alignment: 4,
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stack-id: default, 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: i.addr, type: default, offset: -40, size: 4, alignment: 4,
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stack-id: default, 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: A, type: default, offset: -2992812, size: 2992772, alignment: 4,
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stack-id: default, callee-saved-register: '', callee-saved-restored: true,
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local-offset: -2992780, debug-info-variable: '', debug-info-expression: '',
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debug-info-location: '' }
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- { id: 3, name: a, type: default, offset: -2992816, size: 4, alignment: 4,
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stack-id: default, callee-saved-register: '', callee-saved-restored: true,
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local-offset: -2992784, debug-info-variable: '', debug-info-expression: '',
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debug-info-location: '' }
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- { id: 4, name: B, type: default, offset: -2993308, size: 492, alignment: 4,
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stack-id: default, callee-saved-register: '', callee-saved-restored: true,
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local-offset: -2993276, debug-info-variable: '', debug-info-expression: '',
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debug-info-location: '' }
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- { id: 5, name: '', type: spill-slot, offset: -2993320, size: 8, alignment: 8,
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stack-id: default, 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: 6, name: '', type: spill-slot, offset: -2993324, size: 4, alignment: 4,
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stack-id: default, 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: default, callee-saved-register: '$fp', callee-saved-restored: true,
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debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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- { id: 8, name: '', type: spill-slot, offset: -16, size: 8, alignment: 8,
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stack-id: default, callee-saved-register: '$lr', callee-saved-restored: true,
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debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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- { id: 9, name: '', type: spill-slot, offset: -32, size: 8, alignment: 16,
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stack-id: default, callee-saved-register: '$x28', 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.1.entry:
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successors: %bb.2(0x40000000), %bb.3(0x40000000)
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liveins: $w0, $x28, $fp, $lr
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early-clobber $sp = frame-setup STRXpre killed $x28, $sp, -32 :: (store 8 into %stack.9)
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frame-setup SEH_SaveReg_X 28, -256
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frame-setup STPXi killed $fp, killed $lr, $sp, 2 :: (store 8 into %stack.7), (store 8 into %stack.8)
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frame-setup SEH_SaveFPLR 16
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$x15 = frame-setup MOVi64imm 187081
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frame-setup SEH_Nop
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frame-setup BL &__chkstk, implicit-def $lr, implicit $sp, implicit $x15
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frame-setup SEH_Nop
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$sp = frame-setup SUBXrx64 killed $sp, killed $x15, 28
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frame-setup SEH_StackAlloc 2993296
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frame-setup SEH_PrologEnd
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$x8 = ADDXri $sp, 730, 12
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$x8 = ADDXri $x8, 3208, 0
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renamable $w9 = MOVi32imm 2
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STRWui killed renamable $w0, renamable $x8, 0 :: (store 4 into %ir.i.addr)
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renamable $w0 = LDRWui renamable $x8, 0 :: (load 4 from %ir.i.addr)
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renamable $w0 = ADDWri killed renamable $w0, 2, 0
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STRWui killed renamable $w0, $sp, 128 :: (store 4 into %ir.a)
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STRXui killed $x8, $sp, 1 :: (store 8 into %stack.5)
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STRWui killed $w9, $sp, 1 :: (store 4 into %stack.6)
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BL @"?func2@@YAHXZ", csr_aarch64_aapcs, implicit-def $lr, implicit $sp, implicit-def $w0
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$x8 = LDRXui $sp, 1 :: (load 8 from %stack.5)
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renamable $w9 = LDRWui killed renamable $x8, 0 :: (load 4 from %ir.i.addr)
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$w10 = LDRWui $sp, 1 :: (load 4 from %stack.6)
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$wzr = SUBSWrr killed renamable $w9, killed renamable $w10, implicit-def $nzcv
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renamable $w9 = CSINCWr $wzr, $wzr, 13, implicit $nzcv
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TBNZW killed renamable $w9, 0, %bb.2
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B %bb.3
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bb.2.if.then:
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successors: %bb.4(0x80000000)
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BL @"?func2@@YAHXZ", csr_aarch64_aapcs, implicit-def $lr, implicit $sp, implicit-def $w0
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$x8 = LDRXui $sp, 1 :: (load 8 from %stack.5)
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STRWui killed renamable $w0, killed renamable $x8, 1 :: (store 4 into %ir.retval)
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B %bb.4
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bb.3.if.else:
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successors: %bb.4(0x80000000)
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$x8 = ADDXri $sp, 20, 0
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$x0 = COPY killed renamable $x8
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BL @"?func3@@YAHPEAH@Z", csr_aarch64_aapcs, implicit-def $lr, implicit $sp, implicit killed $x0, implicit-def $w0
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$x8 = LDRXui $sp, 1 :: (load 8 from %stack.5)
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STRWui killed renamable $w0, killed renamable $x8, 1 :: (store 4 into %ir.retval)
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bb.4.return:
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$x8 = LDRXui $sp, 1 :: (load 8 from %stack.5)
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renamable $w0 = LDRWui killed renamable $x8, 1 :: (load 4 from %ir.retval)
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frame-destroy SEH_EpilogStart
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$sp = frame-destroy ADDXri $sp, 730, 12
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frame-destroy SEH_StackAlloc 2990080
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$sp = frame-destroy ADDXri $sp, 3216, 0
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frame-destroy SEH_StackAlloc 3216
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$fp, $lr = frame-destroy LDPXi $sp, 2 :: (load 8 from %stack.7), (load 8 from %stack.8)
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frame-destroy SEH_SaveFPLR 16
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early-clobber $sp, $x28 = frame-destroy LDRXpost $sp, 32 :: (load 8 from %stack.9)
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frame-destroy SEH_SaveReg_X 28, -256
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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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