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From: "andyw at pobox dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/51374] [avr] insn combine reorders volatile memory accesses
Date: Thu, 01 Dec 2011 13:23:00 -0000 [thread overview]
Message-ID: <bug-51374-4-qyO3GKNQlN@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-51374-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51374
--- Comment #4 from andyw at pobox dot com 2011-12-01 13:22:44 UTC ---
Compiler command line & -v output showing configure options (thought I had
pasted this in the initial report - apparently not.) Do not know what happened
to the attachment, the box said text/plain...
$ avr-gcc -mmcu=atmega128 -Wall -O2 -g -c -save-temps -v test.c
Using built-in specs.
COLLECT_GCC=avr-gcc
COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/avr/4.6.2/lto-wrapper
Target: avr
Configured with: ../configure --target=avr --enable-languages=c,c++
--disable-nls --disable-libssp --with-dwarf2 : (reconfigured) ../configure
--target=avr --enable-languages=c,c++ --disable-nls --disable-libssp
--with-dwarf2 --with-gmp=/usr/local --with-mpc=/usr/local
--with-mpfr=/usr/local
Thread model: single
gcc version 4.6.2 (GCC)
COLLECT_GCC_OPTIONS='-mmcu=atmega128' '-Wall' '-O2' '-g' '-c' '-save-temps'
'-v'
/usr/local/libexec/gcc/avr/4.6.2/cc1 -E -quiet -v -imultilib avr51 test.c
-mmcu=atmega128 -Wall -g -fworking-directory -O2 -fpch-preprocess -o test.i
ignoring nonexistent directory
"/usr/local/lib/gcc/avr/4.6.2/../../../../avr/sys-include"
#include "..." search starts here:
#include <...> search starts here:
/usr/local/lib/gcc/avr/4.6.2/include
/usr/local/lib/gcc/avr/4.6.2/include-fixed
/usr/local/lib/gcc/avr/4.6.2/../../../../avr/include
End of search list.
COLLECT_GCC_OPTIONS='-mmcu=atmega128' '-Wall' '-O2' '-g' '-c' '-save-temps'
'-v'
/usr/local/libexec/gcc/avr/4.6.2/cc1 -fpreprocessed test.i -quiet -dumpbase
test.c -mmcu=atmega128 -auxbase test -g -O2 -Wall -version -o test.s
GNU C (GCC) version 4.6.2 (avr)
compiled by GNU C version 4.1.2 20070925 (Red Hat 4.1.2-33), GMP
version 4.3.2, MPFR version 2.4.2, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU C (GCC) version 4.6.2 (avr)
compiled by GNU C version 4.1.2 20070925 (Red Hat 4.1.2-33), GMP
version 4.3.2, MPFR version 2.4.2, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 8445704570d64b6b795b8847e7060bc6
test.c: In function '__vector_18':
test.c:10:16: warning: unused variable 'data' [-Wunused-variable]
COLLECT_GCC_OPTIONS='-mmcu=atmega128' '-Wall' '-O2' '-g' '-c' '-save-temps'
'-v'
/usr/local/lib/gcc/avr/4.6.2/../../../../avr/bin/as -mmcu=atmega128 -o test.o
test.s
COMPILER_PATH=/usr/local/libexec/gcc/avr/4.6.2/:/usr/local/libexec/gcc/avr/4.6.2/:/usr/local/libexec/gcc/avr/:/usr/local/lib/gcc/avr/4.6.2/:/usr/local/lib/gcc/avr/:/usr/local/lib/gcc/avr/4.6.2/../../../../avr/bin/
LIBRARY_PATH=/usr/local/lib/gcc/avr/4.6.2/avr51/:/usr/local/lib/gcc/avr/4.6.2/../../../../avr/lib/avr51/:/usr/local/lib/gcc/avr/4.6.2/:/usr/local/lib/gcc/avr/4.6.2/../../../../avr/lib/
COLLECT_GCC_OPTIONS='-mmcu=atmega128' '-Wall' '-O2' '-g' '-c' '-save-temps'
'-v'
$
next prev parent reply other threads:[~2011-12-01 13:23 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-01 5:01 [Bug c/51374] New: Volatile access reordered andyw at pobox dot com
2011-12-01 9:58 ` [Bug rtl-optimization/51374] [avr] insn combine reorders volatile memory accesses gjl at gcc dot gnu.org
2011-12-01 9:59 ` gjl at gcc dot gnu.org
2011-12-01 10:08 ` gjl at gcc dot gnu.org
2011-12-01 13:23 ` andyw at pobox dot com [this message]
2011-12-08 16:48 ` gjl at gcc dot gnu.org
2011-12-18 20:11 ` gjl at gcc dot gnu.org
2012-01-13 16:00 ` gjl at gcc dot gnu.org
2012-01-13 16:18 ` gjl at gcc dot gnu.org
2012-02-01 11:36 ` gjl at gcc dot gnu.org
2012-02-01 12:41 ` gjl at gcc dot gnu.org
2012-02-01 12:47 ` gjl at gcc dot gnu.org
2012-02-01 12:57 ` gjl at gcc dot gnu.org
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