1 ; RUN: opt < %s -indvars -loop-deletion -S |FileCheck %s 2 3 ; Check IndVarSimplify should replace exit value even if the expansion cost 4 ; is high because the loop can be deleted after the exit value rewrite. 5 ; 6 ; CHECK-LABEL: @_Z3fooPKcjj( 7 ; CHECK: udiv 8 ; CHECK: [[LABEL:^[a-zA-Z0-9_.]+]]: 9 ; CHECK-NOT: br {{.*}} [[LABEL]] 10 11 define i32 @_Z3fooPKcjj(i8* nocapture readnone %s, i32 %len, i32 %c) #0 { 12 entry: 13 br label %while.cond 14 15 while.cond: ; preds = %while.cond, %entry 16 %klen.0 = phi i32 [ %len, %entry ], [ %sub, %while.cond ] 17 %cmp = icmp ugt i32 %klen.0, 11 18 %sub = add i32 %klen.0, -12 19 br i1 %cmp, label %while.cond, label %while.end 20 21 while.end: ; preds = %while.cond 22 %klen.0.lcssa = phi i32 [ %klen.0, %while.cond ] 23 ret i32 %klen.0.lcssa 24 } 25
