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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/80960] [9 Regression] Huge memory use when compiling a very large test case Date: Tue, 18 May 2021 07:05:45 +0000 [thread overview] Message-ID: <bug-80960-4-gV2vfQ3rID@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-80960-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80960 --- Comment #31 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-9 branch has been updated by Richard Biener <rguenth@gcc.gnu.org>: https://gcc.gnu.org/g:6cb5edbf7e6724ff014954863989d7444ee84c6a commit r9-9540-g6cb5edbf7e6724ff014954863989d7444ee84c6a Author: Richard Biener <rguenther@suse.de> Date: Wed Jan 27 15:35:52 2021 +0100 rtl-optimization/80960 - avoid creating garbage RTL in DSE The following avoids repeatedly turning VALUE RTXen into sth useful and re-applying a constant offset through get_addr via DSE check_mem_read_rtx. Instead perform this once for all stores to be visited in check_mem_read_rtx. This avoids allocating 1.6GB of garbage PLUS RTXen on the PR80960 testcase, fixing the memory usage regression from old GCC. 2021-01-27 Richard Biener <rguenther@suse.de> PR rtl-optimization/80960 * dse.c (check_mem_read_rtx): Call get_addr on the offsetted address. (cherry picked from commit a523add327c6cfdd68cf9b788ea808068d0f508c)
next prev parent reply other threads:[~2021-05-18 7:05 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <bug-80960-4@http.gcc.gnu.org/bugzilla/> 2021-01-27 12:23 ` [Bug rtl-optimization/80960] [8/9/10/11 " rguenth at gcc dot gnu.org 2021-01-27 13:09 ` rguenth at gcc dot gnu.org 2021-01-27 14:35 ` rguenth at gcc dot gnu.org 2021-01-27 22:15 ` segher at gcc dot gnu.org 2021-01-28 8:14 ` cvs-commit at gcc dot gnu.org 2021-01-29 11:05 ` [Bug rtl-optimization/80960] [8/9/10 " rguenth at gcc dot gnu.org 2021-05-14 9:49 ` [Bug rtl-optimization/80960] [9/10 " jakub at gcc dot gnu.org 2021-05-17 17:12 ` cvs-commit at gcc dot gnu.org 2021-05-18 7:05 ` cvs-commit at gcc dot gnu.org [this message] 2021-05-18 7:07 ` [Bug rtl-optimization/80960] [9 " rguenth at gcc dot gnu.org
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