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36 lines
636 B
LLVM
36 lines
636 B
LLVM
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; RUN: opt -S < %s -loop-unroll -block-freq | FileCheck %s
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; Crasher from PR20987.
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; CHECK: define void @update_loop_info_in_subloops
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; CHECK: entry:
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; CHECK: L:
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; CHECK: L.inner:
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; CHECK: L.inner.latch:
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; CHECK: L.latch:
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; CHECK: L.inner.1:
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; CHECK: L.inner.latch.1:
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; CHECK: L.latch.1:
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define void @update_loop_info_in_subloops() {
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entry:
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br label %L
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L:
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%0 = phi i64 [ 1, %entry ], [ %1, %L.latch ]
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br label %L.inner
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L.inner:
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br label %L.inner.latch
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L.inner.latch:
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br i1 false, label %L.latch, label %L.inner
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L.latch:
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%1 = add i64 %0, 1
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%2 = icmp eq i64 %1, 3
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br i1 %2, label %exit, label %L
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exit:
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ret void
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}
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