76 lines
1.1 KiB
LLVM
76 lines
1.1 KiB
LLVM
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; RUN: opt < %s -jump-threading -disable-output -verify-dom-info
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@global = external global i64, align 8
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define void @f() {
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bb:
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br label %bb1
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bb1:
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%tmp = load i64, i64* @global, align 8
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%tmp2 = icmp eq i64 %tmp, 0
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br i1 %tmp2, label %bb27, label %bb3
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bb3:
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%tmp4 = load i64, i64* @global, align 8
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%tmp5 = icmp eq i64 %tmp4, 0
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br i1 %tmp5, label %bb6, label %bb7
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bb6:
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br label %bb7
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bb7:
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%tmp8 = phi i1 [ true, %bb3 ], [ undef, %bb6 ]
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%tmp9 = select i1 %tmp8, i64 %tmp4, i64 0
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br i1 false, label %bb10, label %bb23
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bb10:
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%tmp11 = load i64, i64* @global, align 8
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%tmp12 = icmp slt i64 %tmp11, 5
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br i1 %tmp12, label %bb13, label %bb17
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bb13:
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br label %bb14
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bb14:
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br i1 undef, label %bb15, label %bb16
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bb15:
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unreachable
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bb16:
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br label %bb10
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bb17:
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br label %bb18
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bb18:
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br i1 undef, label %bb22, label %bb13
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bb19:
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br i1 undef, label %bb20, label %bb21
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bb20:
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unreachable
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bb21:
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br label %bb18
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bb22:
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br label %bb23
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bb23:
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br i1 undef, label %bb24, label %bb13
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bb24:
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br i1 undef, label %bb26, label %bb25
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bb25:
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br label %bb19
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bb26:
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br label %bb1
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bb27:
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br label %bb24
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}
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