New testcase that crashed scalarevolution on sparc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12755 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/IndVarsSimplify/2004-04-07-ScalarEvolutionCrash.llx b/test/Transforms/IndVarsSimplify/2004-04-07-ScalarEvolutionCrash.llx
new file mode 100644 (file)
index 0000000..f4ee707
--- /dev/null
+++ b/test/Transforms/IndVarsSimplify/2004-04-07-ScalarEvolutionCrash.llx
@@ -0,0 +1,26 @@
+; RUN: llvm-as < %s | opt -indvars -disable-output
+
+void %.outPlank_21() {
+entry:
+       br bool false, label %loopexit.0, label %no_exit.0
+
+no_exit.0:             ; preds = %entry
+       ret void
+
+loopexit.0:            ; preds = %entry
+       br bool false, label %no_exit.1, label %loopexit.1
+
+no_exit.1:             ; preds = %loopexit.0, %loopexit.2
+       %i.0.0 = phi int [ %inc, %loopexit.2 ], [ 0, %loopexit.0 ]              ; <int> [#uses=1]
+       br bool false, label %loopexit.2, label %no_exit.2
+
+no_exit.2:             ; preds = %no_exit.1
+       ret void
+
+loopexit.2:            ; preds = %no_exit.1
+       %inc = add int %i.0.0, 1                ; <int> [#uses=1]
+       br bool false, label %no_exit.1, label %loopexit.1
+
+loopexit.1:            ; preds = %loopexit.0, %loopexit.2
+       ret void
+}