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diff --git a/test/Transforms/PredicateSimplifier/predsimplify.reg4.ll b/test/Transforms/PredicateSimplifier/predsimplify.reg4.ll
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+++ b/test/Transforms/PredicateSimplifier/predsimplify.reg4.ll
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+; RUN: llvm-as < %s | opt -predsimplify -disable-output
+target datalayout = "e-p:32:32"
+target triple = "i686-pc-linux-gnu"
+
+define void @f(i32 %x, i32 %y) {
+entry:
+ %tmp = icmp eq i32 %x, 10 ; <i1> [#uses=1]
+ %tmp.not = xor i1 %tmp, true ; <i1> [#uses=1]
+ %tmp3 = icmp eq i32 %x, %y ; <i1> [#uses=1]
+ %bothcond = and i1 %tmp.not, %tmp3 ; <i1> [#uses=1]
+ br i1 %bothcond, label %cond_true4, label %return
+cond_true4: ; preds = %entry
+ switch i32 %y, label %return [
+ i32 9, label %bb
+ i32 10, label %bb6
+ ]
+bb: ; preds = %cond_true4
+ call void @g( i32 9 )
+ ret void
+bb6: ; preds = %cond_true4
+ call void @g( i32 10 )
+ ret void
+return: ; preds = %cond_true4, %entry
+ ret void
+}
+
+declare void @g(i32)
+