; RUN: opt < %s -simple-loop-unswitch -instcombine -disable-output ; RUN: opt < %s -simple-loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -instcombine -disable-output @str3 = external constant [3 x i8] ; <[3 x i8]*> [#uses=1] define i32 @stringSearch_Clib(i32 %count) { entry: %ttmp25 = icmp sgt i32 %count, 0 ; [#uses=1] br i1 %ttmp25, label %bb36.preheader, label %bb44 bb36.preheader: ; preds = %entry %ttmp33 = icmp slt i32 0, 250 ; [#uses=1] br label %bb36.outer bb36.outer: ; preds = %bb41, %bb36.preheader br i1 %ttmp33, label %bb.nph, label %bb41 bb.nph: ; preds = %bb36.outer %ttmp8 = icmp eq i8* null, null ; [#uses=1] %ttmp6 = icmp eq i8* null, null ; [#uses=1] %tmp31 = call i32 @strcspn( i8* null, i8* getelementptr ([3 x i8], [3 x i8]* @str3, i64 0, i64 0) ) ; [#uses=1] br i1 %ttmp8, label %cond_next, label %cond_true cond_true: ; preds = %bb.nph ret i32 0 cond_next: ; preds = %bb.nph br i1 %ttmp6, label %cond_next28, label %cond_true20 cond_true20: ; preds = %cond_next ret i32 0 cond_next28: ; preds = %cond_next %tmp33 = add i32 %tmp31, 0 ; [#uses=1] br label %bb41 bb41: ; preds = %cond_next28, %bb36.outer %c.2.lcssa = phi i32 [ 0, %bb36.outer ], [ %tmp33, %cond_next28 ] ; [#uses=1] br i1 false, label %bb36.outer, label %bb44 bb44: ; preds = %bb41, %entry %c.01.1 = phi i32 [ 0, %entry ], [ %c.2.lcssa, %bb41 ] ; [#uses=1] ret i32 %c.01.1 } declare i32 @strcspn(i8*, i8*)