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From: "vries at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/65440] New: pass_lim misses support for predicated code motion Date: Mon, 16 Mar 2015 14:27:00 -0000 [thread overview] Message-ID: <bug-65440-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65440 Bug ID: 65440 Summary: pass_lim misses support for predicated code motion Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: enhancement Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: vries at gcc dot gnu.org tree-ssa-loop-im.c ( https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/tree-ssa-loop-im.c;h=9aba79ba776944ec6fba8459354deabe8c126b75;hb=HEAD#l74 ): ... /* TODO: Support for predicated code motion. I.e. while (1) { if (cond) { a = inv; something; } } Where COND and INV are invariants, but evaluating INV may trap or be invalid from some other reason if !COND. This may be transformed to if (cond) a = inv; while (1) { if (cond) something; } */ ...
next reply other threads:[~2015-03-16 14:27 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-03-16 14:27 vries at gcc dot gnu.org [this message] 2015-03-16 14:39 ` [Bug tree-optimization/65440] " vries at gcc dot gnu.org 2015-03-16 14:58 ` vries at gcc dot gnu.org 2015-03-18 11:36 ` rguenth at gcc dot gnu.org
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