derek.holloway
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129 lines
5.7 KiB
YAML
129 lines
5.7 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 5
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# RUN: llc -mtriple=x86_64-unknown-linux-gnu -run-pass=tailduplication -tail-dup-pred-size=1 -tail-dup-succ-size=1 %s -o - | FileCheck %s
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#
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# Check that only the computed gotos are duplicated aggressively.
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#
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--- |
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@computed_goto.dispatch = constant [5 x ptr] [ptr null, ptr blockaddress(@computed_goto, %bb1), ptr blockaddress(@computed_goto, %bb2), ptr blockaddress(@computed_goto, %bb3), ptr blockaddress(@computed_goto, %bb4)]
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declare i64 @f0()
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declare i64 @f1()
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declare i64 @f2()
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declare i64 @f3()
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declare i64 @f4()
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declare i64 @f5()
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define void @computed_goto() {
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start:
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ret void
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bb1:
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ret void
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bb2:
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ret void
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bb3:
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ret void
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bb4:
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ret void
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}
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define void @jump_table() { ret void }
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define void @jump_table_pic() { ret void }
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...
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---
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name: computed_goto
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alignment: 1
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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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body: |
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; CHECK-LABEL: name: computed_goto
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; CHECK: bb.0:
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; CHECK-NEXT: successors: %bb.1(0x20000000), %bb.2(0x20000000), %bb.3(0x20000000), %bb.4(0x20000000)
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: CALL64pcrel32 target-flags(x86-plt) @f0, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, implicit-def $rax
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; CHECK-NEXT: [[COPY:%[0-9]+]]:gr64 = COPY $rax
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:gr64_nosp = COPY [[COPY]]
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; CHECK-NEXT: [[COPY2:%[0-9]+]]:gr64_nosp = COPY [[COPY1]]
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; CHECK-NEXT: JMP64m $noreg, 8, [[COPY2]], @computed_goto.dispatch, $noreg
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.1.bb1 (ir-block-address-taken %ir-block.bb1):
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; CHECK-NEXT: successors: %bb.1(0x20000000), %bb.2(0x20000000), %bb.3(0x20000000), %bb.4(0x20000000)
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: CALL64pcrel32 target-flags(x86-plt) @f1, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, implicit-def $rax
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; CHECK-NEXT: [[COPY3:%[0-9]+]]:gr64 = COPY $rax
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:gr64_nosp = COPY [[COPY3]]
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; CHECK-NEXT: [[COPY2:%[0-9]+]]:gr64_nosp = COPY [[COPY1]]
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; CHECK-NEXT: JMP64m $noreg, 8, [[COPY2]], @computed_goto.dispatch, $noreg
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.2.bb2 (ir-block-address-taken %ir-block.bb2):
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; CHECK-NEXT: successors: %bb.1(0x20000000), %bb.2(0x20000000), %bb.3(0x20000000), %bb.4(0x20000000)
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: CALL64pcrel32 target-flags(x86-plt) @f2, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, implicit-def $rax
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; CHECK-NEXT: [[COPY4:%[0-9]+]]:gr64 = COPY $rax
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:gr64_nosp = COPY [[COPY4]]
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; CHECK-NEXT: [[COPY2:%[0-9]+]]:gr64_nosp = COPY [[COPY1]]
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; CHECK-NEXT: JMP64m $noreg, 8, [[COPY2]], @computed_goto.dispatch, $noreg
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.3.bb3 (ir-block-address-taken %ir-block.bb3):
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; CHECK-NEXT: successors: %bb.1(0x20000000), %bb.2(0x20000000), %bb.3(0x20000000), %bb.4(0x20000000)
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: CALL64pcrel32 target-flags(x86-plt) @f3, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, implicit-def $rax
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; CHECK-NEXT: [[COPY5:%[0-9]+]]:gr64 = COPY $rax
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:gr64_nosp = COPY [[COPY5]]
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; CHECK-NEXT: [[COPY2:%[0-9]+]]:gr64_nosp = COPY [[COPY1]]
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; CHECK-NEXT: JMP64m $noreg, 8, [[COPY2]], @computed_goto.dispatch, $noreg
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.4.bb4 (ir-block-address-taken %ir-block.bb4):
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; CHECK-NEXT: successors: %bb.1(0x20000000), %bb.2(0x20000000), %bb.3(0x20000000), %bb.4(0x20000000)
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: CALL64pcrel32 target-flags(x86-plt) @f4, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, implicit-def $rax
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; CHECK-NEXT: [[COPY6:%[0-9]+]]:gr64 = COPY $rax
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:gr64_nosp = COPY [[COPY6]]
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; CHECK-NEXT: [[COPY2:%[0-9]+]]:gr64_nosp = COPY [[COPY1]]
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; CHECK-NEXT: JMP64m $noreg, 8, [[COPY2]], @computed_goto.dispatch, $noreg
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bb.0:
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successors: %bb.5(0x80000000)
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CALL64pcrel32 target-flags(x86-plt) @f0, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, implicit-def $rax
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%0:gr64 = COPY $rax
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%6:gr64_nosp = COPY %0
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JMP_1 %bb.5
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bb.1.bb1 (ir-block-address-taken %ir-block.bb1):
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successors: %bb.5(0x80000000)
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CALL64pcrel32 target-flags(x86-plt) @f1, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, implicit-def $rax
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%1:gr64 = COPY $rax
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%6:gr64_nosp = COPY %1
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JMP_1 %bb.5
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bb.2.bb2 (ir-block-address-taken %ir-block.bb2):
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successors: %bb.5(0x80000000)
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CALL64pcrel32 target-flags(x86-plt) @f2, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, implicit-def $rax
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%2:gr64 = COPY $rax
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%6:gr64_nosp = COPY %2
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JMP_1 %bb.5
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bb.3.bb3 (ir-block-address-taken %ir-block.bb3):
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successors: %bb.5(0x80000000)
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CALL64pcrel32 target-flags(x86-plt) @f3, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, implicit-def $rax
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%3:gr64 = COPY $rax
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%6:gr64_nosp = COPY %3
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JMP_1 %bb.5
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bb.4.bb4 (ir-block-address-taken %ir-block.bb4):
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successors: %bb.5(0x80000000)
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CALL64pcrel32 target-flags(x86-plt) @f4, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, implicit-def $rax
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%4:gr64 = COPY $rax
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%6:gr64_nosp = COPY %4
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bb.5:
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successors: %bb.1(0x20000000), %bb.2(0x20000000), %bb.3(0x20000000), %bb.4(0x20000000)
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%5:gr64_nosp = COPY %6
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JMP64m $noreg, 8, %5, @computed_goto.dispatch, $noreg
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...
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