1 ; RUN: opt < %s -S -loop-unroll -pass-remarks=loop-unroll -unroll-count=16 2>&1 | FileCheck -check-prefix=COMPLETE-UNROLL %s 2 ; RUN: opt < %s -S -loop-unroll -pass-remarks=loop-unroll -unroll-count=4 2>&1 | FileCheck -check-prefix=PARTIAL-UNROLL %s 3 4 ; COMPLETE-UNROLL: remark: {{.*}}: completely unrolled loop with 16 iterations 5 ; PARTIAL-UNROLL: remark: {{.*}}: unrolled loop by a factor of 4 6 7 define i32 @sum() { 8 entry: 9 br label %for.body 10 11 for.body: ; preds = %for.body, %entry 12 %s.06 = phi i32 [ 0, %entry ], [ %add1, %for.body ] 13 %i.05 = phi i32 [ 0, %entry ], [ %inc, %for.body ] 14 %add = add nsw i32 %i.05, 4 15 %call = tail call i32 @baz(i32 %add) #2 16 %add1 = add nsw i32 %call, %s.06 17 %inc = add nsw i32 %i.05, 1 18 %exitcond = icmp eq i32 %inc, 16 19 br i1 %exitcond, label %for.end, label %for.body 20 21 for.end: ; preds = %for.body 22 ret i32 %add1 23 } 24 25 declare i32 @baz(i32) 26
