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41 lines
632 B
41 lines
632 B
4 months ago
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; RUN: opt < %s -gvn-hoist -S | FileCheck %s
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define void @func() {
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; CHECK-LABEL: @func()
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; CHECK: bb6:
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; CHECK: store i64 0, i64* undef, align 8
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; CHECK: bb7:
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; CHECK-NOT: store i64 0, i64* undef, align 8
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; CHECK: bb8:
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; CHECK-NOT: store i64 0, i64* undef, align 8
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entry:
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br label %bb1
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bb1:
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br label %bb2
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bb2:
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br label %bb3
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bb3:
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br i1 undef, label %bb4, label %bb2
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bb4:
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br i1 undef, label %bb5, label %bb3
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bb5:
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br label %bb6
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bb6:
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br i1 undef, label %bb7, label %bb8
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bb7:
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store i64 0, i64* undef, align 8
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unreachable
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bb8:
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store i64 0, i64* undef, align 8
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ret void
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}
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