[Bug target/52425] [4.6 Regression] ICE when compiling file from audacious on debian sparc

["mikpe at it dot uu.se" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52425

--- Comment #5 from Mikael Pettersson <mikpe at it dot uu.se> 2012-03-02 16:21:37 UTC ---
Reproduced with a vanilla gcc-4.6-20120224, configured
/tmp/gcc-4.6-20120224/configure --target=sparc64-unknown-linux
--prefix=/home/mikpe/pkgs/linux-x86/cross-sparc64
--with-gmp=/home/mikpe/pkgs/linux-x86/gmp-5.0.4
--with-mpfr=/home/mikpe/pkgs/linux-x86/mpfr-3.1.0
--with-mpc=/home/mikpe/pkgs/linux-x86/mpc-0.9 --disable-libquadmath
--disable-plugin --disable-lto --disable-nls --disable-shared
--disable-libmudflap --disable-libgomp --disable-multilib
--enable-threads=posix --enable-checking=release --enable-languages=c, and
running on i686-linux.

Original test case:
> /tmp/objdir/gcc/xgcc -B/tmp/objdir/gcc -fPIC -g -O2 -std=gnu99 -pthread -S -m32 -mcpu=v8 pr52425-1.i
ui_fileopener.c:200:1: internal compiler error: output_operand: invalid
expression as operand

Reduced test case (with -v for completeness):
> /tmp/objdir/gcc/xgcc -B/tmp/objdir/gcc -v -fPIC -g -O2 -std=gnu99 -pthread -S -m32 -mcpu=v8 pr52425-2.c
Reading specs from /tmp/objdir/gcc/specs
COLLECT_GCC=/tmp/objdir/gcc/xgcc
COLLECT_LTO_WRAPPER=/tmp/objdir/gcc/lto-wrapper
Target: sparc64-unknown-linux
Configured with: /tmp/gcc-4.6-20120224/configure --target=sparc64-unknown-linux
--prefix=/home/mikpe/pkgs/linux-x86/cross-sparc64
--with-gmp=/home/mikpe/pkgs/linux-x86/gmp-5.0.4
--with-mpfr=/home/mikpe/pkgs/linux-x86/mpfr-3.1.0
--with-mpc=/home/mikpe/pkgs/linux-x86/mpc-0.9 --disable-libquadmath
--disable-plugin --disable-lto --disable-nls --disable-shared
--disable-libmudflap --disable-libgomp --disable-multilib
--enable-threads=posix --enable-checking=release --enable-languages=c
Thread model: posix
gcc version 4.6.3 20120224 (prerelease) (GCC) 
COLLECT_GCC_OPTIONS='-B' '/tmp/objdir/gcc' '-v' '-fPIC' '-g' '-O2' '-std=gnu99'
'-pthread' '-S' '-m32' '-mcpu=v8'
 /tmp/objdir/gcc/cc1 -quiet -v -imultilib . -iprefix
/tmp/objdir/gcc/../lib/gcc/sparc64-unknown-linux/4.6.3/ -isystem
/tmp/objdir/gcc/include -isystem /tmp/objdir/gcc/include-fixed -D__sparc_v8__
-D_REENTRANT pr52425-2.c -mptr32 -mno-stack-bias -mlong-double-64 -quiet
-dumpbase pr52425-2.c -m32 -mcpu=v8 -auxbase pr52425-2 -g -O2 -std=gnu99
-version -fPIC -o pr52425-2.s
GNU C (GCC) version 4.6.3 20120224 (prerelease) (sparc64-unknown-linux)
        compiled by GNU C version 4.5.4 20120223 (prerelease), GMP version
5.0.4, MPFR version 3.1.0-p4, MPC version 0.9
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring nonexistent directory
"/tmp/objdir/gcc/../lib/gcc/sparc64-unknown-linux/4.6.3/include"
ignoring nonexistent directory
"/tmp/objdir/gcc/../lib/gcc/sparc64-unknown-linux/4.6.3/include-fixed"
ignoring nonexistent directory
"/tmp/objdir/gcc/../lib/gcc/sparc64-unknown-linux/4.6.3/../../../../sparc64-unknown-linux/sys-include"
ignoring nonexistent directory
"/tmp/objdir/gcc/../lib/gcc/sparc64-unknown-linux/4.6.3/../../../../sparc64-unknown-linux/include"
ignoring nonexistent directory
"/tmp/objdir/gcc/../lib/gcc/../../lib/gcc/sparc64-unknown-linux/4.6.3/include"
ignoring nonexistent directory
"/tmp/objdir/gcc/../lib/gcc/../../lib/gcc/sparc64-unknown-linux/4.6.3/include-fixed"
ignoring nonexistent directory
"/tmp/objdir/gcc/../lib/gcc/../../lib/gcc/sparc64-unknown-linux/4.6.3/../../../../sparc64-unknown-linux/sys-include"
ignoring nonexistent directory
"/tmp/objdir/gcc/../lib/gcc/../../lib/gcc/sparc64-unknown-linux/4.6.3/../../../../sparc64-unknown-linux/include"
#include "..." search starts here:
#include <...> search starts here:
 /tmp/objdir/gcc/include
 /tmp/objdir/gcc/include-fixed
End of search list.
GNU C (GCC) version 4.6.3 20120224 (prerelease) (sparc64-unknown-linux)
        compiled by GNU C version 4.5.4 20120223 (prerelease), GMP version
5.0.4, MPFR version 3.1.0-p4, MPC version 0.9
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 13caed9ea010fbdbe7751ee2ff3cc0c2
pr52425-2.c:62:1: internal compiler error: output_operand: invalid expression
as operand

Running cc1 within gdb with a breakpoint on output_operand_lossage:

Breakpoint 1, output_operand_lossage (cmsgid=0x8639346 "invalid expression as
operand") at /tmp/gcc-4.6-20120224/gcc/final.c:3076
3076    {
Missing separate debuginfos, use: debuginfo-install glibc-2.13-2.i686
(gdb) bt
#0  output_operand_lossage (cmsgid=0x8639346 "invalid expression as operand")
at /tmp/gcc-4.6-20120224/gcc/final.c:3076
#1  0x081977bc in output_addr_const (file=0x88281d0, x=0xb7df98f4) at
/tmp/gcc-4.6-20120224/gcc/final.c:3634
#2  0x08133447 in dw2_asm_output_addr_rtx (size=4, addr=0xb7df98f4,
comment=0x0) at /tmp/gcc-4.6-20120224/gcc/dwarf2asm.c:282
#3  0x0813c302 in output_loc_operands (loc=0xb7d69b2c, for_eh_or_skip=<value
optimized out>) at /tmp/gcc-4.6-20120224/gcc/dwarf2out.c:5258
#4  output_loc_sequence (loc=0xb7d69b2c, for_eh_or_skip=<value optimized out>)
at /tmp/gcc-4.6-20120224/gcc/dwarf2out.c:5317
#5  0x0813c8db in output_loc_list (die=<value optimized out>) at
/tmp/gcc-4.6-20120224/gcc/dwarf2out.c:11227
#6  output_location_lists (die=<value optimized out>) at
/tmp/gcc-4.6-20120224/gcc/dwarf2out.c:10575
#7  0x0813c793 in output_location_lists (die=<value optimized out>) at
/tmp/gcc-4.6-20120224/gcc/dwarf2out.c:10577
#8  0x0813c793 in output_location_lists (die=<value optimized out>) at
/tmp/gcc-4.6-20120224/gcc/dwarf2out.c:10577
#9  0x0813c793 in output_location_lists (die=<value optimized out>) at
/tmp/gcc-4.6-20120224/gcc/dwarf2out.c:10577
#10 0x0813c793 in output_location_lists (die=<value optimized out>) at
/tmp/gcc-4.6-20120224/gcc/dwarf2out.c:10577
#11 0x0813c793 in output_location_lists (die=<value optimized out>) at
/tmp/gcc-4.6-20120224/gcc/dwarf2out.c:10577
#12 0x0815a9c0 in dwarf2out_finish (filename=0xbfffef27 "pr52425-2.c") at
/tmp/gcc-4.6-20120224/gcc/dwarf2out.c:23724
#13 0x082fa7ee in compile_file (argc=31, argv=0xbfffec44) at
/tmp/gcc-4.6-20120224/gcc/toplev.c:621
#14 do_compile (argc=31, argv=0xbfffec44) at
/tmp/gcc-4.6-20120224/gcc/toplev.c:1900
#15 toplev_main (argc=31, argv=0xbfffec44) at
/tmp/gcc-4.6-20120224/gcc/toplev.c:1963
#16 0x080bdaeb in main (argc=31, argv=0xbfffec44) at
/tmp/gcc-4.6-20120224/gcc/main.c:36
(gdb) up
#1  0x081977bc in output_addr_const (file=0x88281d0, x=0xb7df98f4) at
/tmp/gcc-4.6-20120224/gcc/final.c:3634
3634          output_operand_lossage ("invalid expression as operand");
(gdb) p debug_rtx (x)
(unspec:SI [
        (symbol_ref:SI ("api_table") [flags 0x40] <var_decl 0xb7de03c0
api_table>)
    ] 0)
$1 = void