testcase for pr1217
llvm-svn: 34545
diff --git a/llvm/test/Transforms/InstCombine/2007-02-23-PhiFoldInfLoop.ll b/llvm/test/Transforms/InstCombine/2007-02-23-PhiFoldInfLoop.ll
new file mode 100644
index 0000000..da28f59
--- /dev/null
+++ b/llvm/test/Transforms/InstCombine/2007-02-23-PhiFoldInfLoop.ll
@@ -0,0 +1,32 @@
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep ret
+; PR1217
+
+target datalayout = "e-p:32:32"
+target triple = "i686-pc-linux-gnu"
+ %struct.termbox = type { %struct.termbox*, i32, i32, i32, i32, i32 }
+
+implementation ; Functions:
+
+define void @ggenorien() {
+entry:
+ %tmp68 = icmp eq %struct.termbox* null, null ; <i1> [#uses=1]
+ br i1 %tmp68, label %cond_next448, label %bb80
+
+bb80: ; preds = %entry
+ ret void
+
+cond_next448: ; preds = %entry
+ br i1 false, label %bb756, label %bb595
+
+bb595: ; preds = %cond_next448
+ br label %bb609
+
+bb609: ; preds = %bb756, %bb595
+ %termnum.6240.0 = phi i32 [ 2, %bb595 ], [ %termnum.6, %bb756 ] ; <i32> [#uses=1]
+ %tmp755 = add i32 %termnum.6240.0, 1 ; <i32> [#uses=1]
+ br label %bb756
+
+bb756: ; preds = %bb609, %cond_next448
+ %termnum.6 = phi i32 [ %tmp755, %bb609 ], [ 2, %cond_next448 ] ; <i32> [#uses=1]
+ br label %bb609
+}