129 lines
3.7 KiB
YAML
129 lines
3.7 KiB
YAML
# RUN: llc -mtriple=aarch64-apple-ios -run-pass=early-tailduplication %s -o - | FileCheck %s
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--- |
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; ModuleID = 'taildup.ll'
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source_filename = "taildup.ll"
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target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
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target triple = "aarch64-apple-ios"
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@bb1 = global i8* blockaddress(@foo, %final)
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@bb2 = global i8* inttoptr (i32 1 to i8*)
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define void @foo(i1 %tst, i32* %ptr) {
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br i1 %tst, label %left, label %right
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left: ; preds = %0
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%val.left = call i32 @bar()
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br label %next
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right: ; preds = %0
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%val.right = call i32 @baz()
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br label %next
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next: ; preds = %right, %left
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%val = phi i32 [ %val.left, %left ], [ %val.right, %right ]
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store i32 %val, i32* %ptr, align 4
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br label %final
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final: ; preds = %next
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%1 = call i32 @bar()
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ret void
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}
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declare i32 @bar()
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declare i32 @baz()
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...
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---
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name: foo
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alignment: 4
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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: false
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registers:
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- { id: 0, class: gpr32all, preferred-register: '' }
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- { id: 1, class: gpr32all, preferred-register: '' }
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- { id: 2, class: gpr32, preferred-register: '' }
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- { id: 3, class: gpr32, preferred-register: '' }
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- { id: 4, class: gpr64common, preferred-register: '' }
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- { id: 5, class: gpr32all, preferred-register: '' }
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- { id: 6, class: gpr32all, preferred-register: '' }
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- { id: 7, class: gpr32all, preferred-register: '' }
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liveins:
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- { reg: '$w0', virtual-reg: '%3' }
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- { reg: '$x1', virtual-reg: '%4' }
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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: 0
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offsetAdjustment: 0
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maxAlignment: 1
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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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cvBytesOfCalleeSavedRegisters: 0
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hasOpaqueSPAdjustment: false
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hasVAStart: false
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hasMustTailInVarArgFunc: false
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hasTailCall: false
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localFrameSize: 0
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savePoint: ''
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restorePoint: ''
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fixedStack: []
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stack: []
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callSites: []
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debugValueSubstitutions: []
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constants: []
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machineFunctionInfo: {}
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body: |
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bb.0 (%ir-block.0):
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successors: %bb.1(0x40000000), %bb.2(0x40000000)
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liveins: $w0, $x1
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%4:gpr64common = COPY $x1
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%3:gpr32 = COPY $w0
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TBZW %3, 0, %bb.2
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B %bb.1
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bb.1.left:
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successors: %bb.3(0x80000000)
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ADJCALLSTACKDOWN 0, 0, implicit-def dead $sp, implicit $sp
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BL @bar, csr_darwin_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp, implicit-def $w0
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ADJCALLSTACKUP 0, 0, implicit-def dead $sp, implicit $sp
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%6:gpr32all = COPY $w0
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%0:gpr32all = COPY %6
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B %bb.3
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bb.2.right:
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successors: %bb.3(0x80000000)
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ADJCALLSTACKDOWN 0, 0, implicit-def dead $sp, implicit $sp
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BL @baz, csr_darwin_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp, implicit-def $w0
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ADJCALLSTACKUP 0, 0, implicit-def dead $sp, implicit $sp
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%5:gpr32all = COPY $w0
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%1:gpr32all = COPY %5
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bb.3.next:
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successors: %bb.4(0x80000000)
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; CHECK: %2:gpr32 = PHI
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%2:gpr32 = PHI %1, %bb.2, %0, %bb.1
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STRWui %2, %4, 0 :: (store (s32) into %ir.ptr)
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bb.4.final (ir-block-address-taken %ir-block.final):
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ADJCALLSTACKDOWN 0, 0, implicit-def dead $sp, implicit $sp
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BL @bar, csr_darwin_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp, implicit-def $w0
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ADJCALLSTACKUP 0, 0, implicit-def dead $sp, implicit $sp
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%7:gpr32all = COPY $w0
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RET_ReallyLR
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...
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