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From: "oleg.endo@t-online.de" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug target/51241] New: SH Target: Unnecessary sign/zero extensions Date: Sun, 20 Nov 2011 18:42:00 -0000 [thread overview] Message-ID: <bug-51241-4@http.gcc.gnu.org/bugzilla/> (raw) http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51241 Bug #: 51241 Summary: SH Target: Unnecessary sign/zero extensions Classification: Unclassified Product: gcc Version: 4.7.0 Status: UNCONFIRMED Severity: enhancement Priority: P3 Component: target AssignedTo: unassigned@gcc.gnu.org ReportedBy: oleg.endo@t-online.de CC: kkojima@gcc.gnu.org Target: sh*-*-* Created attachment 25868 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25868 Examples Under some circumstances unnecessary sign/zero extension insns are generated as shown in the attached example. sh-elf-gcc -v Using built-in specs. COLLECT_GCC=sh-elf-gcc COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/sh-elf/4.7.0/lto-wrapper Target: sh-elf Configured with: ../gcc-trunk/configure --target=sh-elf --prefix=/usr/local --enable-languages=c,c++ --enable-multilib --disable-libssp --disable-nls --disable-werror --enable-lto --with-newlib --with-gnu-as --with-gnu-ld --with-system-zlib Thread model: single gcc version 4.7.0 20111119 (experimental) (GCC)
next reply other threads:[~2011-11-20 18:18 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2011-11-20 18:42 oleg.endo@t-online.de [this message] 2011-11-21 2:06 ` [Bug target/51241] " kkojima at gcc dot gnu.org 2012-07-11 23:45 ` olegendo at gcc dot gnu.org
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