On December 23, 2017 9:33:03 AM GMT+01:00, Jakub Jelinek
wrote:
>Hi!
>
>The problem here is that for loops that have constant 0/false condition
>the C++ FE wants to correctly emit if (0) { body; incr-expr; }
>but doesn't just build3 (COND_EXPR, ...), but fold_build3, and
>COND_EXPR
>folding with
Hi!
The problem here is that for loops that have constant 0/false condition
the C++ FE wants to correctly emit if (0) { body; incr-expr; }
but doesn't just build3 (COND_EXPR, ...), but fold_build3, and COND_EXPR
folding with constant condition optimizes away the unused branch completely
if it does
