New test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6227 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Analysis/LoopInfo/2003-05-15-NestingProblem.ll b/test/Analysis/LoopInfo/2003-05-15-NestingProblem.ll
new file mode 100644 (file)
index 0000000..f04632e
--- /dev/null
+++ b/test/Analysis/LoopInfo/2003-05-15-NestingProblem.ll
@@ -0,0 +1,29 @@
+; This testcase was incorrectly computing that the loopentry.7 loop was
+; not a child of the loopentry.6 loop.
+;
+; RUN: analyze %s -loops | grep "^        Loop Containing:  %loopentry.7"
+
+void %getAndMoveToFrontDecode() {              ; No predecessors!
+       br label %endif.2
+
+endif.2:               ; preds = %0, %loopexit.5
+       br bool false, label %loopentry.5, label %UnifiedExitNode
+
+loopentry.5:           ; preds = %endif.2, %loopexit.6
+       br bool false, label %loopentry.6, label %UnifiedExitNode
+
+loopentry.6:           ; preds = %loopentry.5, %loopentry.7
+       br bool false, label %loopentry.7, label %loopexit.6
+
+loopentry.7:           ; preds = %loopentry.6, %loopentry.7
+       br bool false, label %loopentry.7, label %loopentry.6
+
+loopexit.6:            ; preds = %loopentry.6
+       br bool false, label %loopentry.5, label %loopexit.5
+
+loopexit.5:            ; preds = %loopexit.6
+       br bool false, label %endif.2, label %UnifiedExitNode
+
+UnifiedExitNode:               ; preds = %endif.2, %loopexit.5, %loopentry.5
+       ret void
+}