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Date: Wed, 17 Mar 2010 15:02:00 -0000
Subject: [Bug c/43404]  New: ARM: Internal compiler error when using '&foo' in naked function
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From: "marti at juffo dot org" <gcc-bugzilla@gcc.gnu.org>
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Tested with GCC 4.4.1 and 4.4.3 (custom built) on Arch Linux
host arch is x86_64 and target is arm-elf

This is the full source code needed to reproduce the bug:

void __data_abort(void) __attribute__ ((naked));
void __data_abort(void)
{
  long foo;
  long* bar = &foo;
}

test.c: In function ‘__data_abort’:
test.c:5: warning: unused variable ‘bar’
test.c:5: internal compiler error: in expand_expr_addr_expr_1, at expr.c:6835

---

% arm-elf-gcc -v -save-temps -Wall -c test.c -o test.o
Using built-in specs.
Target: arm-elf
Configured with: ../configure --prefix=/opt/arm-elf-gcc --target=arm-elf
--enable-interwork --enable-multilib --disable-threads --enable-languages=c,c++
--with-newlib
--with-headers=/home/marti/crosschain/gcc-4.4.3/build/../newlib-1.18.0/newlib/libc/include
Thread model: single
gcc version 4.4.3 (GCC) 
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-Wall' '-c' '-o' 'test.o'
 /opt/arm-elf-gcc/libexec/gcc/arm-elf/4.4.3/cc1 -E -quiet -v
-D__USES_INITFINI__ test.c -Wall -fpch-preprocess -o test.i
#include "..." search starts here:
#include <...> search starts here:
 /opt/arm-elf-gcc/lib/gcc/arm-elf/4.4.3/include
 /opt/arm-elf-gcc/lib/gcc/arm-elf/4.4.3/include-fixed
 /opt/arm-elf-gcc/lib/gcc/arm-elf/4.4.3/../../../../arm-elf/sys-include
 /opt/arm-elf-gcc/lib/gcc/arm-elf/4.4.3/../../../../arm-elf/include
End of search list.
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-Wall' '-c' '-o' 'test.o'
 /opt/arm-elf-gcc/libexec/gcc/arm-elf/4.4.3/cc1 -fpreprocessed test.i -quiet
-dumpbase test.c -auxbase-strip test.o -Wall -version -o test.s
GNU C (GCC) version 4.4.3 (arm-elf)
        compiled by GNU C version 4.4.3, GMP version 4.3.2, MPFR version 2.4.2.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 913e44b5d872dc5aa4cdba7cf6499b83
test.c: In function ‘__data_abort’:
test.c:5: warning: unused variable ‘bar’
test.c:5: internal compiler error: in expand_expr_addr_expr_1, at expr.c:6835
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


-- 
           Summary: ARM: Internal compiler error when using '&foo' in naked
                    function
           Product: gcc
           Version: 4.4.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: marti at juffo dot org
  GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: arm-elf


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43404