derek.holloway
7502bf64a4
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37 lines
1.8 KiB
LLVM
37 lines
1.8 KiB
LLVM
; RUN: llc -mtriple=x86_64-- < %s | FileCheck %s
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; RUN: llc -mtriple=x86_64-- -early-live-intervals < %s | FileCheck %s
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64--"
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; Function Attrs: nounwind uwtable
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define { i64, i64 } @foo(ptr %ptr, ptr nocapture readonly %src, ptr nocapture readonly %dst) local_unnamed_addr #0 {
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entry:
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%0 = load i128, ptr %dst, align 16, !tbaa !1
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%shr = lshr i128 %0, 64
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%conv = trunc i128 %shr to i64
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%conv1 = trunc i128 %0 to i64
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%1 = load i128, ptr %src, align 16, !tbaa !1
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%2 = tail call i128 asm sideeffect "lock; cmpxchg16b $1", "=A,=*m,{cx},{bx},0,*m,~{dirflag},~{fpsr},~{flags}"(ptr elementtype(i8) %ptr, i64 %conv, i64 %conv1, i128 %1, ptr elementtype(i8) %ptr) #1, !srcloc !5
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%retval.sroa.0.0.extract.trunc = trunc i128 %2 to i64
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%retval.sroa.2.0.extract.shift = lshr i128 %2, 64
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%retval.sroa.2.0.extract.trunc = trunc i128 %retval.sroa.2.0.extract.shift to i64
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%.fca.0.insert = insertvalue { i64, i64 } undef, i64 %retval.sroa.0.0.extract.trunc, 0
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%.fca.1.insert = insertvalue { i64, i64 } %.fca.0.insert, i64 %retval.sroa.2.0.extract.trunc, 1
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ret { i64, i64 } %.fca.1.insert
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}
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; CHECK: lock
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; CHECK-NEXT: cmpxchg16b
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attributes #0 = { nounwind uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="all" "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"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "use-soft-float"="false" }
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attributes #1 = { nounwind }
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!llvm.ident = !{!0}
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!0 = !{!"clang version 5.0.0 (trunk 300088)"}
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!1 = !{!2, !2, i64 0}
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!2 = !{!"__int128", !3, i64 0}
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!3 = !{!"omnipotent char", !4, i64 0}
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!4 = !{!"Simple C/C++ TBAA"}
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!5 = !{i32 269}
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