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greater ZAM optimization of inlined function calls

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Vern Paxson 2023-11-06 07:03:17 -08:00 • committed by Arne Welzel
parent e3b75ac391
commit b489cfc508
13 changed files with 130 additions and 95 deletions
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15
src/script_opt/GenIDDefs.h
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@ -91,15 +91,12 @@ private:
// A stack of confluence blocks, with the innermost at the top/back.
std::vector<const Stmt*> confluence_blocks;
// Index into confluence_blocks of "barrier" blocks that
// represent unavoidable confluence blocks (no branching
// out of them). These include the outermost block and
// any catch-return blocks. We track these because
// (1) there's no need for an IDOptInfo to track previously
// unseen confluence regions outer to those, and (2) they
// can get quite deep due when inlining, so there are savings
// to avoid having to track outer to them.
std::vector<zeek_uint_t> barrier_blocks;
// Stack of confluence blocks corresponding to activate catch-return
// statements. We used to stop identifier definitions at these
// boundaries, but given there's no confluence (i.e., the body of the
// catch-return *will* execute), we can do broader optimization if we
// don't treat them as their own (new) confluence blocks.
std::vector<zeek_uint_t> cr_active;
// The following is parallel to confluence_blocks except
// the front entry tracks identifiers at the outermost