[Bug c/63490] New: gcc-4.8 memcpy fails with internal compiler error: in ix86_copy_addr_to_reg, at config/i386/i386.c:21718

[pekkanie at student dot oulu.fi]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63490

            Bug ID: 63490
           Summary: gcc-4.8 memcpy fails with internal compiler error: in
                    ix86_copy_addr_to_reg, at config/i386/i386.c:21718
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: pekkanie at student dot oulu.fi

Created attachment 33668
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33668&action=edit
Preprocessed source and precompiled *.s and *.i files

Compiling following code with gcc-4.8 produces:

#include <stdio.h>
#include <string.h>

#define SIZEOF_BUFFER 128

int main()
{
        static char traceBuffer[SIZEOF_BUFFER];
 memcpy((char *)0x40024000, traceBuffer, sizeof(traceBuffer));
 return 0;
}


$ gcc memcpy_test.c -g -m32 -Wall -Wno-format -o memcpy.out 
memcpy_test.c: In function ‘main’:
memcpy_test.c:10:8: internal compiler error: in ix86_copy_addr_to_reg, at
config/i386/i386.c:21718
  memcpy((char *)0x40024000, traceBuffer, sizeof(traceBuffer));
        ^
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.8/README.Bugs> for instructions.
Preprocessed source stored into /tmp/ccZAYKJd.out file, please attach this to
your bugreport.

gcc version in use:

gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.8/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 4.8.2-19ubuntu1'
--with-bugurl=file:///usr/share/doc/gcc-4.8/README.Bugs
--enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-4.8 --enable-shared --enable-linker-build-id
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--with-gxx-include-dir=/usr/include/c++/4.8 --libdir=/usr/lib --enable-nls
--with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug
--enable-libstdcxx-time=yes --enable-gnu-unique-object --disable-libmudflap
--enable-plugin --with-system-zlib --disable-browser-plugin
--enable-java-awt=gtk --enable-gtk-cairo
--with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64/jre --enable-java-home
--with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64
--with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.8-amd64
--with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar
--enable-objc-gc --enable-multiarch --disable-werror --with-arch-32=i686
--with-abi=m64 --with-multilib-list=m32,m64,mx32 --with-tune=generic
--enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu
--target=x86_64-linux-gnu
Thread model: posix
gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1)

System:

$ lsb_release -rd
Description: Ubuntu 14.04.1 LTS
Release: 14.04

$ uname -a
Linux jeppe 3.13.0-36-generic #63-Ubuntu SMP Wed Sep 3 21:30:07 UTC 2014 x86_64
x86_64 x86_64 GNU/Linux

Not able to reproduce the issue with following gcc versions:
gcc version 5.0.0 20140919 (experimental) [trunk revision 215403] (Ubuntu
20140919-0ubuntu1))
gcc version 4.6.4 (Ubuntu/Linaro 4.6.4-6ubuntu2)