ICE with CVS egcs-2.92.13 on hppa1.1-hp-hpux10.20 - libg++ strikes again
Manfred Hollstein
manfred@s-direktnet.de
Wed Oct 7 07:17:00 GMT 1998
These are the problems I've encountered while building egcs sources
from CVS.
1. Building the [class], [byval] and [convert] targets in
${target}/libg++/etc/benchmarks results in:
../../egcs-19981006/gcc/integrate.c:1741: Internal compiler error in function expand_inline_function
This is similar to the problems I've already reported for egcs-1.1
(see < http://www.cygnus.com/ml/egcs-bugs/1998-Sep/0819.html >),
except that [call] and [call-var] now succeed.
2. The "tsort" test program from libg++/etc/ADT-examples loops forever
in a tight loop at line 192 of tsort.cc (at least gdb tells so) - no
problems on sparc-sun-solaris2.*. I killed it manually after looping
around for 980 minutes ;-)
I've attached a stack backtrace from inside gdb for problem 1. and the
preprocessed dhrystone.ii.gz.
Other than that, the build was successfull; this leads me again to suggest:
Even if you don't intend to *use* libg++, please include it in
your regular builds to *check* the compilers. It has uncovered
problems in the compiler several times now. This may indeed
be a big win for everyone who's checking, maintaining, ... parts
of the compiler.
Sources: - egcs from CVS last updated at 1998/10/06 11:37:00 +0200
- libg++-2.8.1.2 + some small patches, which will
become -2.8.1.2a soon.
Patches: [1]: `2nd PATCH to pre-select languages to be build'
from <manfred@s-direktnet.de>.
[2]: `PATCH to make g++ find its include files again'
from <manfred@s-direktnet.de>.
Environment: - GNU binutils 2.9.1 + Ian Lance Taylor's patch to gas/ehopt.c
- dejagnu-971028
- gperf-2.7
configure flags: --with-gcc-version-trigger=/u/b60/manfred/work/GNU/build/sls1hx/egcs-19981006/gcc/version.c --host=hppa1.1-hp-hpux10.20 --srcdir=../egcs-19981006 --prefix=/u/b60/manfred/gnu/hppa1.1-hp-hpux10.20 --with-gnu-as --enable-version-specific-runtime-libs --with-local-prefix=/u/b60/manfred/gnu/hppa1.1-hp-hpux10.20 --enable-nls --verbose --norecursion
BOOT_CC: gcc version egcs-2.91.57 19980901 (egcs-1.1 release)
BOOT_CFLAGS: -O2 -g
CFLAGS: -O2 -g
CXXFLAGS: -O2 -g
manfred
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Current directory is /local/manfred/work/GNU/egcs-19981006-hppa1.1-hp-hpux10.20/gcc/
GDB is free software and you are welcome to distribute copies of it
under certain conditions; type "show copying" to see the conditions.
There is absolutely no warranty for GDB; type "show warranty" for details.
GDB 4.16 (hppa1.1-hp-hpux10.20),
Copyright 1996 Free Software Foundation, Inc...
Breakpoint 1 at 0x218d34
Breakpoint 2 at 0x4e2fc
Breakpoint 3 at 0xc710c: file ../../egcs-19981006/gcc/toplev.c, line 2129.
(gdb) cd ~/work/GNU/build/sls1hx/egcs-19981006-hppa1.1-hp-hpux10.20/hppa1.1-hp-hpux10.20/libg++/etc/benchmarks
Working directory /u/b60/manfred/work/GNU/build/sls1hx/egcs-19981006-hppa1.1-hp-hpux10.20/hppa1.1-hp-hpux10.20/libg++/etc/benchmarks
(canonically /local/manfred/work/GNU/egcs-19981006-hppa1.1-hp-hpux10.20/hppa1.1-hp-hpux10.20/libg++/etc/benchmarks).
(gdb) r dhrystone.ii -quiet -dumpbase dhrystone.cc -g -O2 -version -o dhrystone.s
Starting program: /local/manfred/work/GNU/egcs-19981006-hppa1.1-hp-hpux10.20/gcc/cc1plus dhrystone.ii -quiet -dumpbase dhrystone.cc -g -O2 -version -o dhrystone.s
warning: Unable to find __d_pid symbol in object file.
warning: Suggest linking with /usr/lib/end.o.
warning: GDB will be unable to track shl_load/shl_unload calls
Breakpoint 1 at 0x7af496e8
Breakpoint 2 at 0x7af528fc
GNU C++ version egcs-2.92.13 19981006 (gcc2 ss-980609 experimental) (hppa1.1-hp-hpux10.20) compiled by GNU C version egcs-2.92.13 19981006 (gcc2 ss-980609 experimental).
../../egcs-19981006/gcc/integrate.c:1741: Internal compiler error in function expand_inline_function
Breakpoint 2, 0x7af528fc in ___exit ()
(gdb) bt
#0 0x7af528fc in ___exit ()
#1 0x1457ac in expand_inline_function (fndecl=0x4010bdd0, parms=0x7b03c268,
target=0x4016bb58, ignore=0, type=0x400cec80, structure_value_addr=0x0)
at ../../egcs-19981006/gcc/integrate.c:1741
#2 0x109cb8 in expand_call (exp=0x401638b8, target=0x4016bb58, ignore=0)
at ../../egcs-19981006/gcc/calls.c:730
#3 0x605d0 in cplus_expand_expr (exp=0x7b03c260, target=0x4016bb58,
tmode=1075197432, modifier=1075197552)
at ../../../egcs-19981006/gcc/cp/expr.c:130
#4 0x103c60 in expand_expr (exp=0x401636a8, target=0x0, tmode=QImode,
modifier=EXPAND_NORMAL) at ../../egcs-19981006/gcc/expr.c:8056
#5 0xfba78 in store_expr (exp=0x401636a8, target=0x4016bb58, want_value=0)
at ../../egcs-19981006/gcc/expr.c:3596
#6 0x1034bc in expand_expr (exp=0x401636c8, target=0x4016bb58,
tmode=VOIDmode, modifier=EXPAND_CONST_ADDRESS)
at ../../egcs-19981006/gcc/expr.c:7727
#7 0x1037cc in expand_expr (exp=0x401637f0, target=0x0, tmode=VOIDmode,
modifier=EXPAND_SUM) at ../../egcs-19981006/gcc/expr.c:7862
#8 0x1016f4 in expand_expr (exp=0x401638a0, target=0x0, tmode=SImode,
modifier=EXPAND_SUM) at ../../egcs-19981006/gcc/expr.c:6733
#9 0x145008 in expand_inline_function (fndecl=0x400d16e8, parms=0x0,
target=0x0, ignore=0, type=0x40032270, structure_value_addr=0x0)
at ../../egcs-19981006/gcc/integrate.c:1445
---Type <return> to continue, or q <return> to quit---
#10 0x109cb8 in expand_call (exp=0x40163850, target=0x0, ignore=0)
at ../../egcs-19981006/gcc/calls.c:730
#11 0x1015ac in expand_expr (exp=0x40163850, target=0x0, tmode=SImode,
modifier=EXPAND_NORMAL) at ../../egcs-19981006/gcc/expr.c:6695
#12 0x101740 in expand_expr (exp=0x40163870, target=0x4016bb38, tmode=SImode,
modifier=EXPAND_NORMAL) at ../../egcs-19981006/gcc/expr.c:6746
#13 0xef060 in expand_return (retval=0x4016bb38)
at ../../egcs-19981006/gcc/stmt.c:2668
#14 0xa855c in c_expand_return (retval=0x40163870)
at ../../../egcs-19981006/gcc/cp/typeck.c:7499
#15 0xbdb80 in finish_return_stmt (expr=0x40163850)
at ../../../egcs-19981006/gcc/cp/semantics.c:317
Cannot access memory at address 0x0.
(gdb) up
#1 0x1457ac in expand_inline_function (fndecl=0x4010bdd0, parms=0x7b03c268,
target=0x4016bb58, ignore=0, type=0x400cec80, structure_value_addr=0x0)
at ../../egcs-19981006/gcc/integrate.c:1741
(gdb) l
1736 /* There is no return value to worry about. */
1737 ;
1738 else if (GET_CODE (loc) == MEM)
1739 {
1740 if (! structure_value_addr || ! aggregate_value_p (DECL_RESULT (fndecl)))
1741 abort ();
1742
1743 /* Pass the function the address in which to return a structure value.
1744 Note that a constructor can cause someone to call us with
1745 STRUCTURE_VALUE_ADDR, but the initialization takes place
(gdb) p structure_value_addr
$1 = (struct rtx_def *) 0x0
(gdb)
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