forked from OSchip/llvm-project
97 lines
4.0 KiB
YAML
97 lines
4.0 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -mtriple=x86_64-unknown-linux-gnu -verify-machineinstrs -O2 -run-pass=livevars,phi-node-elimination -o - %s | FileCheck %s
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# Check that the COPY from [[MOV64rm]] is not killed, because there is a
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# subsequent use of [[MOV64rm]] in the INLINEASM_BR instruction which should be
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# killed instead.
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--- |
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; ModuleID = '<stdin>'
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source_filename = "<stdin>"
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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declare void @foo(i8*)
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; Function Attrs: nounwind
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define void @test1(i8* %arg, i8** %mem) #0 {
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entry:
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br label %loop
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loop: ; preds = %loop, %entry
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%a = phi i8* [ %arg, %entry ], [ %b, %loop ]
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%b = load i8*, i8** %mem, align 8
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call void @foo(i8* %a)
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callbr void asm sideeffect "", "*m,i"(i8* elementtype(i8) %b, i8* blockaddress(@test1, %loop))
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to label %end [label %loop]
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end: ; preds = %loop
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ret void
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}
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attributes #0 = { nounwind }
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...
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---
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name: test1
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alignment: 16
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tracksRegLiveness: true
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registers:
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- { id: 0, class: gr64 }
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- { id: 1, class: gr64 }
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- { id: 2, class: gr64 }
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- { id: 3, class: gr64 }
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liveins:
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- { reg: '$rdi', virtual-reg: '%2' }
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- { reg: '$rsi', virtual-reg: '%3' }
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frameInfo:
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maxAlignment: 1
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hasCalls: true
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machineFunctionInfo: {}
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body: |
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; CHECK-LABEL: name: test1
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; CHECK: bb.0.entry:
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; CHECK-NEXT: successors: %bb.1(0x80000000)
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; CHECK-NEXT: liveins: $rdi, $rsi
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:gr64 = COPY killed $rsi
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:gr64 = COPY killed $rdi
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; CHECK-NEXT: [[COPY2:%[0-9]+]]:gr64 = COPY killed [[COPY1]]
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.1.loop (address-taken, inlineasm-br-indirect-target):
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; CHECK-NEXT: successors: %bb.2(0x80000000), %bb.1(0x00000000)
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY3:%[0-9]+]]:gr64 = COPY killed [[COPY2]]
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; CHECK-NEXT: [[MOV64rm:%[0-9]+]]:gr64 = MOV64rm [[COPY]], 1, $noreg, 0, $noreg :: (load (s64) from %ir.mem)
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; CHECK-NEXT: ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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; CHECK-NEXT: $rdi = COPY killed [[COPY3]]
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; CHECK-NEXT: CALL64pcrel32 target-flags(x86-plt) @foo, csr_64, implicit $rsp, implicit $ssp, implicit killed $rdi, implicit-def $rsp, implicit-def $ssp
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; CHECK-NEXT: ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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; CHECK-NEXT: [[COPY4:%[0-9]+]]:gr64 = COPY [[MOV64rm]]
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; CHECK-NEXT: INLINEASM_BR &"", 9 /* sideeffect mayload attdialect */, 196654 /* mem:m */, killed [[MOV64rm]], 1, $noreg, 0, $noreg, 13 /* imm */, blockaddress(@test1, %ir-block.loop)
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; CHECK-NEXT: JMP_1 %bb.2
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.2.end:
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; CHECK-NEXT: RET 0
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bb.0.entry:
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liveins: $rdi, $rsi
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%3:gr64 = COPY killed $rsi
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%2:gr64 = COPY killed $rdi
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bb.1.loop (address-taken, inlineasm-br-indirect-target):
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successors: %bb.2(0x80000000), %bb.1(0x00000000)
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%0:gr64 = PHI %2, %bb.0, %1, %bb.1
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%1:gr64 = MOV64rm %3, 1, $noreg, 0, $noreg :: (load (s64) from %ir.mem)
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ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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$rdi = COPY killed %0
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CALL64pcrel32 target-flags(x86-plt) @foo, csr_64, implicit $rsp, implicit $ssp, implicit killed $rdi, implicit-def $rsp, implicit-def $ssp
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ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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INLINEASM_BR &"", 9 /* sideeffect mayload attdialect */, 196654 /* mem:m */, %1, 1, $noreg, 0, $noreg, 13 /* imm */, blockaddress(@test1, %ir-block.loop)
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JMP_1 %bb.2
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bb.2.end:
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RET 0
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...
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