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-rw-r--r--llvm/test/Transforms/LICM/2014-09-10-doFinalizationAssert.ll30
1 files changed, 30 insertions, 0 deletions
diff --git a/llvm/test/Transforms/LICM/2014-09-10-doFinalizationAssert.ll b/llvm/test/Transforms/LICM/2014-09-10-doFinalizationAssert.ll
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index 00000000000..17ae716dd47
--- /dev/null
+++ b/llvm/test/Transforms/LICM/2014-09-10-doFinalizationAssert.ll
@@ -0,0 +1,30 @@
+; RUN: opt < %s -scalar-evolution -licm -loop-unroll -disable-output
+; Test triggered an assertion in doFinalization() because loop unroll was deleting
+; the inner loop which caused the loop to not get removed from the
+; LoopToAliasSetMap.
+; Test case taken from test/Transforms/LoopUnroll/unloop.ll.
+
+declare i1 @check() nounwind
+define void @skiplevelexit() nounwind {
+entry:
+ br label %outer
+
+outer:
+ br label %inner
+
+inner:
+ %iv = phi i32 [ 0, %outer ], [ %inc, %tail ]
+ %inc = add i32 %iv, 1
+ call zeroext i1 @check()
+ br i1 true, label %outer.backedge, label %tail
+
+tail:
+ br i1 false, label %inner, label %exit
+
+outer.backedge:
+ br label %outer
+
+exit:
+ ret void
+}
+
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