|  | ; RUN: opt < %s -loop-unswitch -instcombine -disable-output | 
|  | %struct.ClassDef = type { %struct.QByteArray, %struct.QByteArray, %"struct.QList<ArgumentDef>", %"struct.QList<ArgumentDef>", i8, i8, %"struct.QList<ArgumentDef>", %"struct.QList<ArgumentDef>", %"struct.QList<ArgumentDef>", %"struct.QList<ArgumentDef>", %"struct.QList<ArgumentDef>", %"struct.QList<ArgumentDef>", %"struct.QMap<QByteArray,QByteArray>", %"struct.QList<ArgumentDef>", %"struct.QMap<QByteArray,QByteArray>", i32, i32 } | 
|  | %struct.FILE = type { i32, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, %struct._IO_marker*, %struct.FILE*, i32, i32, i32, i16, i8, [1 x i8], i8*, i64, i8*, i8*, i8*, i8*, i32, i32, [40 x i8] } | 
|  | %struct.Generator = type { %struct.FILE*, %struct.ClassDef*, %"struct.QList<ArgumentDef>", %struct.QByteArray, %"struct.QList<ArgumentDef>" } | 
|  | %struct.QBasicAtomic = type { i32 } | 
|  | %struct.QByteArray = type { %"struct.QByteArray::Data"* } | 
|  | %"struct.QByteArray::Data" = type { %struct.QBasicAtomic, i32, i32, i8*, [1 x i8] } | 
|  | %"struct.QList<ArgumentDef>" = type { %"struct.QList<ArgumentDef>::._19" } | 
|  | %"struct.QList<ArgumentDef>::._19" = type { %struct.QListData } | 
|  | %struct.QListData = type { %"struct.QListData::Data"* } | 
|  | %"struct.QListData::Data" = type { %struct.QBasicAtomic, i32, i32, i32, i8, [1 x i8*] } | 
|  | %"struct.QMap<QByteArray,QByteArray>" = type { %"struct.QMap<QByteArray,QByteArray>::._56" } | 
|  | %"struct.QMap<QByteArray,QByteArray>::._56" = type { %struct.QMapData* } | 
|  | %struct.QMapData = type { %struct.QMapData*, [12 x %struct.QMapData*], %struct.QBasicAtomic, i32, i32, i32, i8 } | 
|  | %struct._IO_marker = type { %struct._IO_marker*, %struct.FILE*, i32 } | 
|  | @.str9 = external constant [1 x i8]		; <[1 x i8]*> [#uses=1] | 
|  |  | 
|  | declare i32 @strcmp(i8*, i8*) | 
|  |  | 
|  | define i32 @_ZN9Generator6strregEPKc(%struct.Generator* %this, i8* %s) { | 
|  | entry: | 
|  | %s_addr.0 = select i1 false, i8* getelementptr ([1 x i8]* @.str9, i32 0, i32 0), i8* %s		; <i8*> [#uses=2] | 
|  | %tmp122 = icmp eq i8* %s_addr.0, null		; <i1> [#uses=1] | 
|  | br label %bb184 | 
|  |  | 
|  | bb55:		; preds = %bb184 | 
|  | ret i32 0 | 
|  |  | 
|  | bb88:		; preds = %bb184 | 
|  | br i1 %tmp122, label %bb154, label %bb128 | 
|  |  | 
|  | bb128:		; preds = %bb88 | 
|  | %tmp138 = call i32 @strcmp( i8* null, i8* %s_addr.0 )		; <i32> [#uses=1] | 
|  | %iftmp.37.0.in4 = icmp eq i32 %tmp138, 0		; <i1> [#uses=1] | 
|  | br i1 %iftmp.37.0.in4, label %bb250, label %bb166 | 
|  |  | 
|  | bb154:		; preds = %bb88 | 
|  | br i1 false, label %bb250, label %bb166 | 
|  |  | 
|  | bb166:		; preds = %bb154, %bb128 | 
|  | %tmp175 = add i32 %idx.0, 1		; <i32> [#uses=1] | 
|  | %tmp177 = add i32 %tmp175, 0		; <i32> [#uses=1] | 
|  | %tmp181 = add i32 %tmp177, 0		; <i32> [#uses=1] | 
|  | %tmp183 = add i32 %i33.0, 1		; <i32> [#uses=1] | 
|  | br label %bb184 | 
|  |  | 
|  | bb184:		; preds = %bb166, %entry | 
|  | %i33.0 = phi i32 [ 0, %entry ], [ %tmp183, %bb166 ]		; <i32> [#uses=2] | 
|  | %idx.0 = phi i32 [ 0, %entry ], [ %tmp181, %bb166 ]		; <i32> [#uses=2] | 
|  | %tmp49 = icmp slt i32 %i33.0, 0		; <i1> [#uses=1] | 
|  | br i1 %tmp49, label %bb88, label %bb55 | 
|  |  | 
|  | bb250:		; preds = %bb154, %bb128 | 
|  | ret i32 %idx.0 | 
|  | } |