http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55046
Bug #: 55046
Summary: [4.8 Regression] ICE in ira_reuse_stack_slot at
ira-color.c:4065
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: dang...@gcc.gnu.org
Host: hppa2.0w-hp-hpux11.11
Target: hppa2.0w-hp-hpux11.11
Build: hppa2.0w-hp-hpux11.11
Created attachment 28516
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28516
Preprocessed source
The ICE breaks building the fortran library as follows:
/opt/gnu/bin/bash ./libtool --tag=FC --mode=compile
/test/gnu/gcc/objdir/./gc
c/gfortran -B/test/gnu/gcc/objdir/./gcc/
-B/opt/gnu/gcc/gcc-4.8/hppa2.0w-hp-hpux11.11/bin/
-B/opt/gnu/gcc/gcc-4.8/hppa2.0w-hp-hpux11.11/lib/ -isystem /opt/gnu/g
cc/gcc-4.8/hppa2.0w-hp-hpux11.11/include -isystem
/opt/gnu/gcc/gcc-4.8/hppa2.0w-
hp-hpux11.11/sys-include -DHAVE_CONFIG_H -I. -I../../../gcc/libgfortran
-iqu
ote../../../gcc/libgfortran/io -I../../../gcc/libgfortran/../gcc
-I../../../gcc/libgfortran/../gcc/config
-I../../../gcc/libgfortran/../libquadmath -I../.././gcc
-I../../../gcc/libgfortran/../libgcc -I../libgcc -I . -Wall -Werror
-fimplicit-none -fno-repack-arrays -fno-underscoring -fallow-leading-underscore
-g -O2 -c -o _dim_r16.lo `test -f
'../../../gcc/libgfortran/generated/_dim_r16.F90' || ec
ho
'../../../gcc/libgfortran/'`../../../gcc/libgfortran/generated/_dim_r16.F90libtool:
compile: /test/gnu/gcc/objdir/./gcc/gfortran -B/test/gnu/gcc/objdir/./gcc/
-B/opt/gnu/gcc/gcc-4.8/hppa2.0w-hp-hpux11.11/bin/
-B/opt/gnu/gcc/gcc-4.8/hppa2.0w-hp-hpux11.11/lib/ -isystem
/opt/gnu/gcc/gcc-4.8/hppa2.0w-hp-hpux11.11/include -isystem
/opt/gnu/gcc/gcc-4.8/hppa2.0w-hp-hpux11.11/sys-include -DHAVE_CONF
IG_H -I. -I../../../gcc/libgfortran -iquote../../../gcc/libgfortran/io
-I../../../gcc/libgfortran/../gcc -I../../../gcc/libgfortran/../gcc/config
-I../../../gcc/libgfortran/../libquadmath -I../.././gcc
-I../../../gcc/libgfortran/../libgcc -I../libgcc -I . -Wall -Werror
-fimplicit-none -fno-repack-arrays -fno-underscoring -fallow-leading-underscore
-g -O2 -c ../../../gcc/libgfortran/generated/_dim_
r16.F90 -fPIC -o .libs/_dim_r16.o
../../../gcc/libgfortran/generated/_dim_r16.F90: In function
'_gfortran_specific__dim_r16':
../../../gcc/libgfortran/generated/_dim_r16.F90:42:0: internal compiler error:
Segmentation fault
end function
^
../../../gcc/libgfortran/generated/_dim_r16.F90:42:0: internal compiler error:
Aborted
gfortran: internal compiler error: Aborted (program f951)
./libtool: line 1156: 11697 ABORT instruction (core dumped)
/test/gnu/gcc/objdir/./gcc/gfortran -B/test/gnu/gcc/objdir/./gcc/
-B/opt/gnu/gcc/gcc-4.8/hppa2.0w-hp-hpux11.11/bin/
-B/opt/gnu/gcc/gcc-4.8/hppa2.0w-hp-hpux11.11/lib/ -isystem
/opt/gnu/gcc/gcc-4.8/hppa2.0w-hp-hpux11.11/include -isystem
/opt/gnu/gcc/gcc-4.8/hppa2.0w-hp-hpux11.11/sys-include -DHAVE_CONFIG_H -I.
-I../../../gcc/libgfortran -iquote../../../gcc/libgfortran/io
-I../../../gcc/libgfortran/../gcc -I../../../gcc/libgfortran/../gcc/config
-I../../../gcc/libgfortran/../libquadmath -I../.././gcc
-I../../../gcc/libgfortran/../libgcc -I../libgcc -I . -Wall -Werror
-fimplicit-none -fno-repack-arrays -fno-underscoring -fallow-leading-underscore
-g -O2 -c ../../../gcc/libgfortran/generated/_dim_r16.F90 -fPIC -o
.libs/_dim_r16.o
make[3]: *** [_dim_r16.lo] Error 1
-bash-3.2$ ./xgcc -B./ -v
Reading specs from ./specs
COLLECT_GCC=./xgcc
COLLECT_LTO_WRAPPER=./lto-wrapper
Target: hppa2.0w-hp-hpux11.11
Configured with: ../gcc/configure --with-gnu-as --with-as=/opt/gnu/bin/as
--enable-shared --with-local-prefix=/opt/gnu --prefix=/opt/gnu/gcc/gcc-4.8
--with-gmp=/opt/gnu/gcc/gmp --enable-threads=posix --enable-debug=no
--disable-nls --without-cloog --without-ppl
--enable-languages=c,c++,objc,fortran,java,ada,obj-c++
Thread model: posix
gcc version 4.8.0 20121023 (experimental) [trunk revision 192710] (GCC)
(gdb) r
Starting program: /test/gnu/gcc/objdir/gcc/f951
../../../gcc/libgfortran/generated/_dim_r16.F90 -cpp=_dim_r16.f90 -quiet -v -I
. -I ../../../gcc/libgfortran -I ../../../gcc/libgfortran/../gcc -I
../../../gcc/libgfortran/../gcc/config -I
../../../gcc/libgfortran/../libquadmath -I ../.././gcc -I
../../../gcc/libgfortran/../libgcc -I ../libgcc -I . -iprefix
/test/gnu/gcc/objdir/gcc/../lib/gcc/hppa2.0w-hp-hpux11.11/4.8.0/ -isystem
/test/gnu/gcc/objdir/./gcc/include -isystem
/test/gnu/gcc/objdir/./gcc/include-fixed -D HAVE_CONFIG_H -isystem
/opt/gnu/gcc/gcc-4.8/hppa2.0w-hp-hpux11.11/include -isystem
/opt/gnu/gcc/gcc-4.8/hppa2.0w-hp-hpux11.11/sys-include -iquote
../../../gcc/libgfortran/io ../../../gcc/libgfortran/generated/_dim_r16.F90
-quiet -dumpbase _dim_r16.F90 -auxbase-strip .libs/_dim_r16.o -g -O2 -Wall
-Werror -version -fimplicit-none -fno-repack-arrays -fno-underscoring
-fallow-leading-underscore -fPIC -fintrinsic-modules-path finclude -o
_dim_r16.s
warning: Private mapping of shared library text was not specified
by the executable; setting a breakpoint in a shared library which
is not privately mapped will not work. See the HP-UX 11i v3 chatr
manpage for methods to privately map shared library text.
GNU Fortran (GCC) version 4.8.0 20121023 (experimental) [trunk revision 192710]
(hppa2.0w-hp-hpux11.11)
compiled by GNU C version 4.8.0 20121023 (experimental) [trunk revision
192710], GMP version 5.0.2, MPFR version 3.1.0-p1, MPC version 1.0
warning: MPFR header version 3.1.0-p1 differs from library version 3.0.1-p4.
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
ignoring nonexistent directory
"/test/gnu/gcc/objdir/gcc/../lib/gcc/hppa2.0w-hp-hpux11.11/4.8.0/include"
ignoring nonexistent directory
"/test/gnu/gcc/objdir/gcc/../lib/gcc/hppa2.0w-hp-hpux11.11/4.8.0/include-fixed"
ignoring nonexistent directory
"/test/gnu/gcc/objdir/gcc/../lib/gcc/hppa2.0w-hp-hpux11.11/4.8.0/../../../../hppa2.0w-hp-hpux11.11/include"
ignoring nonexistent directory
"/opt/gnu/gcc/gcc-4.8/lib/gcc/hppa2.0w-hp-hpux11.11/4.8.0/include"
ignoring nonexistent directory "/opt/gnu/gcc/gcc-4.8/include"
ignoring nonexistent directory
"/opt/gnu/gcc/gcc-4.8/lib/gcc/hppa2.0w-hp-hpux11.11/4.8.0/include-fixed"
ignoring nonexistent directory
"/opt/gnu/gcc/gcc-4.8/hppa2.0w-hp-hpux11.11/include"
ignoring duplicate directory "."
ignoring nonexistent directory
"/opt/gnu/gcc/gcc-4.8/hppa2.0w-hp-hpux11.11/include"
ignoring nonexistent directory
"/opt/gnu/gcc/gcc-4.8/hppa2.0w-hp-hpux11.11/sys-include"
#include "..." search starts here:
#include <...> search starts here:
.
../../../gcc/libgfortran
../../../gcc/libgfortran/../gcc
../../../gcc/libgfortran/../gcc/config
../../../gcc/libgfortran/../libquadmath
../.././gcc
../../../gcc/libgfortran/../libgcc
../libgcc
/test/gnu/gcc/objdir/./gcc/include
/test/gnu/gcc/objdir/./gcc/include-fixed
../../../gcc/libgfortran/io
/opt/gnu/include
/usr/include
End of search list.
GNU Fortran (GCC) version 4.8.0 20121023 (experimental) [trunk revision 192710]
(hppa2.0w-hp-hpux11.11)
compiled by GNU C version 4.8.0 20121023 (experimental) [trunk revision
192710], GMP version 5.0.2, MPFR version 3.1.0-p1, MPC version 1.0
warning: MPFR header version 3.1.0-p1 differs from library version 3.0.1-p4.
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Program received signal SIGSEGV, Segmentation fault.
0x004daff4 in _Z20ira_reuse_stack_slotijj (regno=102, inherent_size=4,
total_size=4) at ../../gcc/gcc/ira-color.c:4065
4065 ira_assert (inherent_size == PSEUDO_REGNO_BYTES (regno)
(gdb) bt
#0 0x004daff4 in _Z20ira_reuse_stack_slotijj (regno=102, inherent_size=4,
total_size=4) at ../../gcc/gcc/ira-color.c:4065
#1 0x005b1808 in _ZL9alter_regiib (i=102, from_reg=-1, dont_share_p=false)
at ../../gcc/gcc/reload1.c:2205
#2 0x005b9b40 in _Z6reloadP7rtx_defi (
first=0x40116b60 <global_options+1612>, global=1074854752)
at ../../gcc/gcc/reload1.c:793
#3 0x004be268 in _ZL21rest_of_handle_reloadv () at ../../gcc/gcc/ira.c:4355
#4 0x0055c660 in _Z16execute_one_passP8opt_pass (
pass=0x4005e428 <pass_reload>) at ../../gcc/gcc/passes.c:2320
#5 0x0055cad0 in _Z17execute_pass_listP8opt_pass (
pass=0x4005e428 <pass_reload>) at ../../gcc/gcc/passes.c:2381
#6 0x0055cae8 in _Z17execute_pass_listP8opt_pass (
pass=0x400687bc <pass_rest_of_compilation>) at ../../gcc/gcc/passes.c:2382
#7 0x002662e4 in _ZL15expand_functionP11cgraph_node (node=0x7ae78000)
at ../../gcc/gcc/cgraphunit.c:1601
#8 0x00268600 in _Z7compilev () at ../../gcc/gcc/cgraphunit.c:1705
#9 0x00268e94 in _Z25finalize_compilation_unitv ()
at ../../gcc/gcc/cgraphunit.c:2080
#10 0x004ec1a8 in _Z25write_global_declarationsv ()
at ../../gcc/gcc/langhooks.c:323
#11 0x00111ac4 in _ZL29gfc_write_global_declarationsv ()
at ../../gcc/gcc/fortran/f95-lang.c:265
---Type <return> to continue, or q <return> to quit---
#12 0x00633c88 in compile_file() () at ../../gcc/gcc/toplev.c:560
#13 0x00635d84 in _Z11toplev_mainiPPc (argc=0, argv=0x0)
at ../../gcc/gcc/toplev.c:1866
#14 0x00921428 in main (argc=102, argv=0x4) at ../../gcc/gcc/main.c:36
(gdb) p regno
$1 = 102
(gdb) list
4060 ira_allocno_t another_allocno, allocno =
ira_regno_allocno_map[regno];
4061 rtx x;
4062 bitmap_iterator bi;
4063 struct ira_spilled_reg_stack_slot *slot = NULL;
4064
4065 ira_assert (inherent_size == PSEUDO_REGNO_BYTES (regno)
4066 && inherent_size <= total_size
4067 && ALLOCNO_HARD_REGNO (allocno) < 0);
4068 if (! flag_ira_share_spill_slots)
4069 return NULL_RTX;
(gdb) p allocno
$2 = (ira_allocno_t) 0x0
(gdb) disass $pc-16,$pc+16
Dump of assembler code from 0x4dafe4 to 0x4db004:
0x004dafe4 <_Z20ira_reuse_stack_slotijj+124>: ldb 0(ret0),r14
0x004dafe8 <_Z20ira_reuse_stack_slotijj+128>: cmpb,<> r25,r14,0x4db594
<_Z20ira_reuse_stack_slotijj+1580>
0x004dafec <_Z20ira_reuse_stack_slotijj+132>: depw,z r26,29,30,r7
0x004daff0 <_Z20ira_reuse_stack_slotijj+136>: cmpb,<<,n r24,r14,0x4db594
<_Z20ira_reuse_stack_slotijj+1580>
=> 0x004daff4 <_Z20ira_reuse_stack_slotijj+140>: ldh c(r4),r13
0x004daff8 <_Z20ira_reuse_stack_slotijj+144>: extrw,s r13,31,16,r13
0x004daffc <_Z20ira_reuse_stack_slotijj+148>: cmpib,<= 0,r13,0x4db594
<_Z20ira_reuse_stack_slotijj+1580>
0x004db000 <_Z20ira_reuse_stack_slotijj+152>: addil L%4d800,dp,r1
End of assembler dump.
(gdb) p/x $r4
$3 = 0x0
(gdb) info addr allocno
Symbol "allocno" is a variable in register r4.
