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-rw-r--r--test/Transforms/LoopSimplify/dup-preds.ll46
1 files changed, 46 insertions, 0 deletions
diff --git a/test/Transforms/LoopSimplify/dup-preds.ll b/test/Transforms/LoopSimplify/dup-preds.ll
new file mode 100644
index 0000000000..3d1f1499b1
--- /dev/null
+++ b/test/Transforms/LoopSimplify/dup-preds.ll
@@ -0,0 +1,46 @@
+; RUN: opt -loop-simplify -S %s | FileCheck %s
+target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64"
+target triple = "powerpc64-bgq-linux"
+
+define fastcc void @do_update_md([3 x float]* nocapture readonly %x) #0 {
+entry:
+ br i1 undef, label %if.end365, label %lor.lhs.false134
+
+lor.lhs.false134: ; preds = %entry
+ br i1 undef, label %lor.lhs.false138, label %if.end365
+
+lor.lhs.false138: ; preds = %lor.lhs.false134
+ br i1 undef, label %lor.lhs.false142, label %if.end365
+
+lor.lhs.false142: ; preds = %lor.lhs.false138
+ br i1 undef, label %for.body276.lr.ph, label %if.end365
+
+for.body276.lr.ph: ; preds = %lor.lhs.false142
+ switch i16 undef, label %if.then288 [
+ i16 4, label %for.body344
+ i16 2, label %for.body344
+ ]
+
+if.then288: ; preds = %for.body276.lr.ph
+ br label %for.body305
+
+for.body305: ; preds = %for.body305, %if.then288
+ br label %for.body305
+
+for.body344: ; preds = %for.body344, %for.body276.lr.ph, %for.body276.lr.ph
+ %indvar = phi i64 [ %indvar.next, %for.body344 ], [ 0, %for.body276.lr.ph ]
+ %indvars.iv552 = phi i64 [ %indvars.iv.next553, %for.body344 ], [ 0, %for.body276.lr.ph ], [ 0, %for.body276.lr.ph ]
+ %indvars.iv.next553 = add nuw nsw i64 %indvars.iv552, 1
+ %indvar.next = add i64 %indvar, 1
+ br label %for.body344
+
+; CHECK-LABEL: @do_update_md
+; CHECK: %indvars.iv552 = phi i64 [ %indvars.iv.next553, %for.body344 ], [ 0, %for.body344.preheader ]
+; CHECK: ret
+
+if.end365: ; preds = %lor.lhs.false142, %lor.lhs.false138, %lor.lhs.false134, %entry
+ ret void
+}
+
+attributes #0 = { nounwind }
+