| ; RUN: opt < %s -indvars -loop-deletion -S |FileCheck %s |
| |
| ; Check IndVarSimplify should replace exit value even if the expansion cost |
| ; is high because the loop can be deleted after the exit value rewrite. |
| ; |
| ; CHECK-LABEL: @_Z3fooPKcjj( |
| ; CHECK: udiv |
| ; CHECK: [[LABEL:^[a-zA-Z0-9_.]+]]: |
| ; CHECK-NOT: br {{.*}} [[LABEL]] |
| |
| define i32 @_Z3fooPKcjj(i8* nocapture readnone %s, i32 %len, i32 %c) #0 { |
| entry: |
| br label %while.cond |
| |
| while.cond: ; preds = %while.cond, %entry |
| %klen.0 = phi i32 [ %len, %entry ], [ %sub, %while.cond ] |
| %cmp = icmp ugt i32 %klen.0, 11 |
| %sub = add i32 %klen.0, -12 |
| br i1 %cmp, label %while.cond, label %while.end |
| |
| while.end: ; preds = %while.cond |
| %klen.0.lcssa = phi i32 [ %klen.0, %while.cond ] |
| ret i32 %klen.0.lcssa |
| } |
