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38 lines
588 B
38 lines
588 B
7 months ago
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; RUN: opt -S -jump-threading -verify -o - %s | FileCheck %s
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@a = external global i16, align 1
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; CHECK-LABEL: f
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; CHECK: bb6:
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; CHECK: bb2:
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; CHECK: bb3:
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; CHECK-NOT: bb0:
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; CHECK-NOT: bb1:
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; CHECK-NOT: bb4:
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; CHECK-NOT: bb5:
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define void @f(i32 %p1) {
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bb0:
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%0 = icmp eq i32 %p1, 0
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br i1 undef, label %bb6, label %bb1
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bb1:
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br label %bb2
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bb2:
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%1 = phi i1 [ %0, %bb1 ], [ %2, %bb4 ]
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%2 = and i1 %1, undef
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br i1 %2, label %bb3, label %bb4
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bb3:
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store i16 undef, i16* @a, align 1
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br label %bb4
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bb4:
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br i1 %0, label %bb2, label %bb5
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bb5:
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unreachable
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bb6:
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ret void
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}
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