On Fri, 17 Feb 2017, Marek Polacek wrote:
> For "(int) -x", which is a NOP_EXPR, negate_expr_p returns true, which means
> that fold_negate_expr cannot return NULL_TREE. But that's what happens here,
> leading to a crash in fold_build2. negate_expr_p has (as well as negate_expr)
> STRIP_SIGN_NOP
For "(int) -x", which is a NOP_EXPR, negate_expr_p returns true, which means
that fold_negate_expr cannot return NULL_TREE. But that's what happens here,
leading to a crash in fold_build2. negate_expr_p has (as well as negate_expr)
STRIP_SIGN_NOPS, so the "(int) -x" becomes "-x", but fold_negate_
