1 files changed, 139 insertions, 0 deletions
diff --git a/test/Transforms/LoopRotate/crash.ll b/test/Transforms/LoopRotate/crash.ll
new file mode 100644
index 0000000..9dc9862
--- /dev/null
+++ b/test/Transforms/LoopRotate/crash.ll
@@ -0,0 +1,139 @@
+; RUN: opt -loop-rotate %s -disable-output -verify-dom-info -verify-loop-info
+
+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-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
+target triple = "x86_64-apple-darwin10.0.0"
+
+; PR8955 - Rotating an outer loop that has a condbr for a latch block.
+define void @test1() nounwind ssp {
+entry:
+  br label %lbl_283
+
+lbl_283:                                          ; preds = %if.end, %entry
+  br i1 undef, label %if.else, label %if.then
+
+if.then:                                          ; preds = %lbl_283
+  br i1 undef, label %if.end, label %for.condthread-pre-split
+
+for.condthread-pre-split:                         ; preds = %if.then
+  br label %for.cond
+
+for.cond:                                         ; preds = %for.cond, %for.condthread-pre-split
+  br i1 undef, label %lbl_281, label %for.cond
+
+lbl_281:                                          ; preds = %if.end, %for.cond
+  br label %if.end
+
+if.end:                                           ; preds = %lbl_281, %if.then
+  br i1 undef, label %lbl_283, label %lbl_281
+
+if.else:                                          ; preds = %lbl_283
+  ret void
+}
+
+        %struct.relation = type { [4 x i16], i32, [4 x i16], i32, i32 }
+
+define void @test2() {
+entry:
+        br i1 false, label %bb139, label %bb10.i44
+bb10.i44:               ; preds = %entry
+        ret void
+bb127:          ; preds = %bb139
+        br label %bb139
+bb139:          ; preds = %bb127, %entry
+        br i1 false, label %bb127, label %bb142
+bb142:          ; preds = %bb139
+        %r91.0.lcssa = phi %struct.relation* [ null, %bb139 ]           ; <%struct.relation*> [#uses=0]
+        ret void
+}
+
+
+define void @test3() {
+entry:
+	br i1 false, label %bb139, label %cond_true
+cond_true:		; preds = %entry
+	ret void
+bb90:		; preds = %bb139
+	br i1 false, label %bb136, label %cond_next121
+cond_next121:		; preds = %bb90
+	br i1 false, label %bb136, label %bb127
+bb127:		; preds = %cond_next121
+	br label %bb136
+bb136:		; preds = %bb127, %cond_next121, %bb90
+	%changes.1 = phi i32 [ %changes.2, %bb90 ], [ %changes.2, %cond_next121 ], [ 1, %bb127 ]		; <i32> [#uses=1]
+	br label %bb139
+bb139:		; preds = %bb136, %entry
+	%changes.2 = phi i32 [ %changes.1, %bb136 ], [ 0, %entry ]		; <i32> [#uses=3]
+	br i1 false, label %bb90, label %bb142
+bb142:		; preds = %bb139
+	%changes.2.lcssa = phi i32 [ %changes.2, %bb139 ]		; <i32> [#uses=0]
+	ret void
+}
+
+define void @test4() {
+entry:
+	br i1 false, label %cond_false485, label %bb405
+bb405:		; preds = %entry
+	ret void
+cond_false485:		; preds = %entry
+	br label %bb830
+bb511:		; preds = %bb830
+	br i1 false, label %bb816, label %bb830
+cond_next667:		; preds = %bb816
+	br i1 false, label %cond_next695, label %bb680
+bb676:		; preds = %bb680
+	br label %bb680
+bb680:		; preds = %bb676, %cond_next667
+	%iftmp.68.0 = zext i1 false to i8		; <i8> [#uses=1]
+	br i1 false, label %bb676, label %cond_next695
+cond_next695:		; preds = %bb680, %cond_next667
+	%iftmp.68.2 = phi i8 [ %iftmp.68.0, %bb680 ], [ undef, %cond_next667 ]	; <i8> [#uses=0]
+	ret void
+bb816:		; preds = %bb816, %bb511
+	br i1 false, label %cond_next667, label %bb816
+bb830:		; preds = %bb511, %cond_false485
+	br i1 false, label %bb511, label %bb835
+bb835:		; preds = %bb830
+	ret void
+}
+
+	%struct.NSArray = type { %struct.NSObject }
+	%struct.NSObject = type { %struct.objc_class* }
+	%struct.NSRange = type { i64, i64 }
+	%struct._message_ref_t = type { %struct.NSObject* (%struct.NSObject*, %struct._message_ref_t*, ...)*, %struct.objc_selector* }
+	%struct.objc_class = type opaque
+	%struct.objc_selector = type opaque
+@"\01L_OBJC_MESSAGE_REF_26" = external global %struct._message_ref_t		; <%struct._message_ref_t*> [#uses=1]
+
+define %struct.NSArray* @test5(%struct.NSArray* %self, %struct._message_ref_t* %_cmd) {
+entry:
+	br label %bb116
+
+bb116:		; preds = %bb131, %entry
+	%tmp123 = call %struct.NSRange null( %struct.NSObject* null, %struct._message_ref_t* @"\01L_OBJC_MESSAGE_REF_26", %struct.NSArray* null )		; <%struct.NSRange> [#uses=1]
+	br i1 false, label %bb141, label %bb131
+
+bb131:		; preds = %bb116
+	%mrv_gr125 = getresult %struct.NSRange %tmp123, 1		; <i64> [#uses=0]
+	br label %bb116
+
+bb141:		; preds = %bb116
+	ret %struct.NSArray* null
+}
+
+define void @test6(i8* %msg) {
+entry:
+	br label %bb15
+bb6:		; preds = %bb15
+	%gep.upgrd.1 = zext i32 %offset.1 to i64		; <i64> [#uses=1]
+	%tmp11 = getelementptr i8* %msg, i64 %gep.upgrd.1		; <i8*> [#uses=0]
+	br label %bb15
+bb15:		; preds = %bb6, %entry
+	%offset.1 = add i32 0, 1		; <i32> [#uses=2]
+	br i1 false, label %bb6, label %bb17
+bb17:		; preds = %bb15
+	%offset.1.lcssa = phi i32 [ %offset.1, %bb15 ]		; <i32> [#uses=0]
+	%payload_type.1.lcssa = phi i32 [ 0, %bb15 ]		; <i32> [#uses=0]
+	ret void
+}
+
+