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[Bug rtl-optimization/14782] [3.3/3.4/3.5 Regression] produces an unaligned data access at -O2
- From: "cvs-commit at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 21 Jun 2004 23:49:13 -0000
- Subject: [Bug rtl-optimization/14782] [3.3/3.4/3.5 Regression] produces an unaligned data access at -O2
- References: <20040330073832.14782.tausq@debian.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-06-21 23:49 -------
Subject: Bug 14782
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: danglin@gcc.gnu.org 2004-06-21 23:49:05
Modified files:
gcc : ChangeLog
gcc/config/pa : pa.c pa.h
Log message:
PR rtl-optimization/14782
* pa.c (emit_move_sequence): Use SFmode for 4-byte modes when doing
the address checks for secondary reloads for loads from and stores
to floating-point registers.
* pa.h (EXTRA_CONSTRAINT, case T): Use SFmode for 4-byte modes
in the address check. Move work around for ELF32 targets to
GO_IF_LEGITIMATE_ADDRESS.
(GO_IF_LEGITIMATE_ADDRESS): Require constant offsets to be
correctly aligned for DImode loads and stores. Don't allow long
SFmode displacements on ELF32.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.4071&r2=2.4072
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/pa/pa.c.diff?cvsroot=gcc&r1=1.251&r2=1.252
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/pa/pa.h.diff?cvsroot=gcc&r1=1.218&r2=1.219
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14782