1 ; RUN: opt < %s -loop-unswitch -instcombine -disable-output 2 3 @str3 = external constant [3 x i8] ; <[3 x i8]*> [#uses=1] 4 5 define i32 @stringSearch_Clib(i32 %count) { 6 entry: 7 %ttmp25 = icmp sgt i32 %count, 0 ; <i1> [#uses=1] 8 br i1 %ttmp25, label %bb36.preheader, label %bb44 9 10 bb36.preheader: ; preds = %entry 11 %ttmp33 = icmp slt i32 0, 250 ; <i1> [#uses=1] 12 br label %bb36.outer 13 14 bb36.outer: ; preds = %bb41, %bb36.preheader 15 br i1 %ttmp33, label %bb.nph, label %bb41 16 17 bb.nph: ; preds = %bb36.outer 18 %ttmp8 = icmp eq i8* null, null ; <i1> [#uses=1] 19 %ttmp6 = icmp eq i8* null, null ; <i1> [#uses=1] 20 %tmp31 = call i32 @strcspn( i8* null, i8* getelementptr ([3 x i8]* @str3, i64 0, i64 0) ) ; <i32> [#uses=1] 21 br i1 %ttmp8, label %cond_next, label %cond_true 22 23 cond_true: ; preds = %bb.nph 24 ret i32 0 25 26 cond_next: ; preds = %bb.nph 27 br i1 %ttmp6, label %cond_next28, label %cond_true20 28 29 cond_true20: ; preds = %cond_next 30 ret i32 0 31 32 cond_next28: ; preds = %cond_next 33 %tmp33 = add i32 %tmp31, 0 ; <i32> [#uses=1] 34 br label %bb41 35 36 bb41: ; preds = %cond_next28, %bb36.outer 37 %c.2.lcssa = phi i32 [ 0, %bb36.outer ], [ %tmp33, %cond_next28 ] ; <i32> [#uses=1] 38 br i1 false, label %bb36.outer, label %bb44 39 40 bb44: ; preds = %bb41, %entry 41 %c.01.1 = phi i32 [ 0, %entry ], [ %c.2.lcssa, %bb41 ] ; <i32> [#uses=1] 42 ret i32 %c.01.1 43 } 44 45 declare i32 @strcspn(i8*, i8*) 46
