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From: "michael.v.zolotukhin at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/51134] [4.7 Regression] x86 memset/memcpy expansion is broken
Date: Tue, 22 Nov 2011 14:19:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51134

--- Comment #10 from Michael Zolotukhin <michael.v.zolotukhin at gmail dot com> 2011-11-22 13:17:38 UTC ---
Created attachment 25882
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25882
Patch for new memset/memcpy implementation

(In reply to comment #9)
> Regressions caused by the new memset/memcpy expansion are
> 
> FAIL: 27_io/basic_filebuf/seekoff/wchar_t/1.cc execution test
> FAIL: 27_io/basic_filebuf/seekpos/wchar_t/9874.cc execution test
> FAIL: 27_io/manipulators/basefield/char/1.cc execution test
> FAIL: 27_io/manipulators/basefield/wchar_t/1.cc execution test
> FAIL: 27_io/objects/wchar_t/12.cc execution test
> FAIL: 27_io/objects/wchar_t/13.cc execution test
> FAIL: events run
> FAIL: gcc.target/i386/cleanup-1.c execution test
> FAIL: gcc.target/i386/cleanup-2.c execution test
> FAIL: gcc.target/i386/pr34077.c (internal compiler error)
> FAIL: gcc.target/i386/pr34077.c (internal compiler error)
> FAIL: gcc.target/i386/pr34077.c (test for excess errors)
> FAIL: gcc.target/i386/pr34077.c (test for excess errors)
> FAIL: gfortran.fortran-torture/execute/arrayarg.f90 execution,  -O2
> -fomit-frame-pointer -finline-functions -funroll-loops

With the attached patch fails on PR34077 and arrayarg.f90 are fixed, fails on
cleanup-tests are probably caused by incorrect testcase (see
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49503).