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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/50176] [4.7/4.8 Regression] 4.7 generates spill-fill dealing with char->int conversion Date: Wed, 16 Jan 2013 11:22:00 -0000 [thread overview] Message-ID: <bug-50176-4-gNOC07G7da@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-50176-4@http.gcc.gnu.org/bugzilla/> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50176 --- Comment #21 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-01-16 11:22:23 UTC --- Created attachment 29177 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29177 gcc48-pr50176.patch Are you sure about it? For me on the http://gcc.gnu.org/bugzilla/attachment.cgi?id=25088 testcase with -m32 -O2 with the attached patch I get just minor RA changes: - movl(%esp), %edi + movl(%esp), %esi addl$3, %ecx - movl4(%esp), %esi - movzbl(%edi,%eax), %ebx + movl4(%esp), %edi + movzbl(%esi,%eax), %ebx + movzbl(%edi,%eax), %esi movzbl0(%ebp,%eax), %edi - movzbl(%esi,%eax), %esi The fwprop extension is performed as can be seen in the dump, but the overall effect isn't there.
next prev parent reply other threads:[~2013-01-16 11:22 UTC|newest] Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top 2011-08-24 14:56 [Bug target/50176] New: [4.6/4.7 " izamyatin at gmail dot com 2011-08-24 18:09 ` [Bug target/50176] " hjl.tools at gmail dot com 2011-08-24 18:20 ` hjl.tools at gmail dot com 2011-08-25 13:40 ` [Bug target/50176] [4.7 " izamyatin at gmail dot com 2011-08-25 13:58 ` hjl.tools at gmail dot com 2011-08-26 21:46 ` hjl.tools at gmail dot com 2011-08-29 12:03 ` izamyatin at gmail dot com 2011-08-29 13:44 ` hjl.tools at gmail dot com 2011-08-29 14:12 ` rguenth at gcc dot gnu.org 2011-09-14 14:38 ` izamyatin at gmail dot com 2011-09-16 14:42 ` izamyatin at gmail dot com 2011-10-27 10:04 ` [Bug rtl-optimization/50176] " rguenth at gcc dot gnu.org 2011-12-13 20:06 ` vmakarov at redhat dot com 2012-01-10 12:12 ` rguenth at gcc dot gnu.org 2012-01-10 22:04 ` ebotcazou at gcc dot gnu.org 2012-01-11 8:58 ` rguenther at suse dot de 2012-01-11 9:15 ` ebotcazou at gcc dot gnu.org 2012-01-30 17:00 ` jakub at gcc dot gnu.org 2012-01-30 17:01 ` jakub at gcc dot gnu.org 2012-01-31 11:24 ` [Bug rtl-optimization/50176] [4.7/4.8 " jakub at gcc dot gnu.org 2012-01-31 12:29 ` rguenth at gcc dot gnu.org 2012-06-27 13:58 ` jakub at gcc dot gnu.org 2012-06-27 15:30 ` jakub at gcc dot gnu.org 2013-01-15 21:28 ` law at redhat dot com 2013-01-16 11:22 ` jakub at gcc dot gnu.org [this message] 2013-01-20 6:16 ` law at redhat dot com 2013-03-22 14:48 ` [Bug rtl-optimization/50176] " jakub at gcc dot gnu.org 2013-05-31 11:00 ` jakub at gcc dot gnu.org 2013-10-16 9:50 ` jakub at gcc dot gnu.org 2015-06-22 14:26 ` rguenth at gcc dot gnu.org
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