|  | ; RUN: opt < %s -instcombine -disable-output | 
|  | ; PR2303 | 
|  | %"struct.std::ctype<char>" = type { %"struct.std::locale::facet", i32*, i8, i32*, i32*, i16*, i8, [256 x i8], [256 x i8], i8 } | 
|  | %"struct.std::locale::facet" = type { i32 (...)**, i32 } | 
|  |  | 
|  | declare i32* @_ZNSt6locale5facet15_S_get_c_localeEv() | 
|  |  | 
|  | declare i32** @__ctype_toupper_loc() readnone | 
|  |  | 
|  | declare i32** @__ctype_tolower_loc() readnone | 
|  |  | 
|  | define void @_ZNSt5ctypeIcEC2EPiPKtbm(%"struct.std::ctype<char>"* %this, i32* %unnamed_arg, i16* %__table, i8 zeroext  %__del, i64 %__refs) { | 
|  | entry: | 
|  | %tmp8 = invoke i32* @_ZNSt6locale5facet15_S_get_c_localeEv( ) | 
|  | to label %invcont unwind label %lpad		; <i32*> [#uses=0] | 
|  |  | 
|  | invcont:		; preds = %entry | 
|  | %tmp32 = invoke i32** @__ctype_toupper_loc( ) readnone | 
|  | to label %invcont31 unwind label %lpad		; <i32**> [#uses=0] | 
|  |  | 
|  | invcont31:		; preds = %invcont | 
|  | %tmp38 = invoke i32** @__ctype_tolower_loc( ) readnone | 
|  | to label %invcont37 unwind label %lpad		; <i32**> [#uses=1] | 
|  |  | 
|  | invcont37:		; preds = %invcont31 | 
|  | %tmp39 = load i32** %tmp38, align 8		; <i32*> [#uses=1] | 
|  | %tmp41 = getelementptr %"struct.std::ctype<char>"* %this, i32 0, i32 4		; <i32**> [#uses=1] | 
|  | store i32* %tmp39, i32** %tmp41, align 8 | 
|  | ret void | 
|  |  | 
|  | lpad:		; preds = %invcont31, %invcont, %entry | 
|  | %exn = landingpad {i8*, i32} personality i32 (...)* @__gxx_personality_v0 | 
|  | cleanup | 
|  | unreachable | 
|  | } | 
|  |  | 
|  | declare i32 @__gxx_personality_v0(...) |