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Re: [tree-ssa] dead const/pure/alloca call removal
- From: Nathanael Nerode <neroden at twcny dot rr dot com>
- To: gcc-patches at gcc dot gnu dot org
- Date: Sat, 08 Nov 2003 15:58:30 -0500
- Subject: Re: [tree-ssa] dead const/pure/alloca call removal
+ /* Return true if CALL can not be removed in case its return value is
+ In addition to const and pure functions we may elliminate alloca
+ builtin too. */
Actually, I would write the comment this way, for maximum clarity:
"Return true if CALL cannot be removed even when its return value is
dead. (Return false if the return value is the only significant part of
the call, such as when a pure function is being called.)"