Testcase for LoopIndexSplit and DomFrontier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51916 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/LoopIndexSplit/2008-06-03-DomFrontier.ll b/test/Transforms/LoopIndexSplit/2008-06-03-DomFrontier.ll
new file mode 100644 (file)
index 0000000..1f6876c
--- /dev/null
+++ b/test/Transforms/LoopIndexSplit/2008-06-03-DomFrontier.ll
@@ -0,0 +1,32 @@
+; RUN: llvm-as < %s | opt -loop-rotate -loop-unswitch -loop-index-split -instcombine -disable-output
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
+target triple = "i386-apple-darwin9"
+       %struct.__CFData = type opaque
+       %struct.__CFString = type opaque
+
+define %struct.__CFData* @WirelessCreatePSK(%struct.__CFString* %inPassphrase, %struct.__CFData* %inSSID) nounwind  {
+entry:
+       br label %bb52
+
+bb52:          ; preds = %bb142, %bb52, %entry
+       br i1 false, label %bb142, label %bb52
+
+bb63:          ; preds = %bb142, %bb131
+       %t.0.reg2mem.0 = phi i32 [ %tmp133, %bb131 ], [ 0, %bb142 ]             ; <i32> [#uses=2]
+       %tmp65 = icmp ult i32 %t.0.reg2mem.0, 16                ; <i1> [#uses=1]
+       br i1 %tmp65, label %bb68, label %bb89
+
+bb68:          ; preds = %bb63
+       br label %bb131
+
+bb89:          ; preds = %bb63
+       br label %bb131
+
+bb131:         ; preds = %bb89, %bb68
+       %tmp133 = add i32 %t.0.reg2mem.0, 1             ; <i32> [#uses=2]
+       %tmp136 = icmp ult i32 %tmp133, 80              ; <i1> [#uses=1]
+       br i1 %tmp136, label %bb63, label %bb142
+
+bb142:         ; preds = %bb131, %bb52
+       br i1 undef, label %bb63, label %bb52
+}