[Bug bootstrap/43994] [4.6 Regression] Failed to bootstrap on Linux/ia64

["hjl dot tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #1 from hjl dot tools at gmail dot com  2010-05-05 16:15 -------
../../../src-trunk/libgomp/loop_ull.c: In function
?gomp_loop_ull_dynamic_start?:
../../../src-trunk/libgomp/loop_ull.c:140:1: internal compiler error: in
simplify_subreg, at simplify-rtx.c:5135
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
gnu-12:pts/1[19]> gdb /export/gnu/import/svn/gcc-test/bld/./gcc/cc1
GNU gdb 6.6.50.20070716-cvs
Copyright (C) 2007 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
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This GDB was configured as "ia64-unknown-linux-gnu"...
r Using host libthread_db library "/lib/libthread_db.so.1".
(gdb) r -fpreprocessed x.i -quiet -dumpbase x.i -auxbase x -g -O2 -version -o
x.s
Starting program: /export/gnu/import/svn/gcc-test/bld/gcc/cc1 -fpreprocessed
x.i -quiet -dumpbase x.i -auxbase x -g -O2 -version -o x.s
GNU C (GCC) version 4.6.0 20100505 (experimental) [trunk revision 159067]
(ia64-unknown-linux-gnu)
        compiled by GNU C version 4.1.2 20080704 (Red Hat 4.1.2-48), GMP
version 4.3.2, MPFR version 2.4.2-p3, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU C (GCC) version 4.6.0 20100505 (experimental) [trunk revision 159067]
(ia64-unknown-linux-gnu)
        compiled by GNU C version 4.1.2 20080704 (Red Hat 4.1.2-48), GMP
version 4.3.2, MPFR version 2.4.2-p3, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: 0f724e9160530d830afe53facd78c91b
 ../../../src-trunk/libgomp/loop_ull.c: In function
?gomp_loop_ull_dynamic_start?:
../../../src-trunk/libgomp/loop_ull.c:140:1: internal compiler error: in
simplify_subreg, at simplify-rtx.c:5135
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Program exited with code 04.
(gdb) b fancy_abort 
Breakpoint 1 at 0x40000000005700d1: file ../../src-trunk/gcc/diagnostic.c, line
811.
(gdb) r
Starting program: /export/gnu/import/svn/gcc-test/bld/gcc/cc1 -fpreprocessed
x.i -quiet -dumpbase x.i -auxbase x -g -O2 -version -o x.s
GNU C (GCC) version 4.6.0 20100505 (experimental) [trunk revision 159067]
(ia64-unknown-linux-gnu)
        compiled by GNU C version 4.1.2 20080704 (Red Hat 4.1.2-48), GMP
version 4.3.2, MPFR version 2.4.2-p3, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU C (GCC) version 4.6.0 20100505 (experimental) [trunk revision 159067]
(ia64-unknown-linux-gnu)
        compiled by GNU C version 4.1.2 20080704 (Red Hat 4.1.2-48), GMP
version 4.3.2, MPFR version 2.4.2-p3, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: 0f724e9160530d830afe53facd78c91b

Breakpoint 1, fancy_abort (
    file=0x4000000001ef05d0 "../../src-trunk/gcc/simplify-rtx.c", line=5135, 
    function=0x4000000001ef19e8 "simplify_subreg")
    at ../../src-trunk/gcc/diagnostic.c:811
811       internal_error ("in %s, at %s:%d", function, trim_filename (file),
line);
(gdb) bt
#0  fancy_abort (file=0x4000000001ef05d0 "../../src-trunk/gcc/simplify-rtx.c", 
    line=5135, function=0x4000000001ef19e8 "simplify_subreg")
    at ../../src-trunk/gcc/diagnostic.c:811
#1  0x4000000000f4fe20 in simplify_subreg (outermode=QImode, 
    op=0x200000000408f500, innermode=SImode, byte=0)
    at ../../src-trunk/gcc/simplify-rtx.c:5134
#2  0x4000000000f53670 in simplify_gen_subreg (outermode=QImode, 
    op=0x200000000408f500, innermode=SImode, byte=0)
    at ../../src-trunk/gcc/simplify-rtx.c:5444
#3  0x40000000016de700 in vt_expand_loc_callback (x=0x20000000040b8c18, 
    regs=0x60000000002f01a0, max_depth=5, data=0x60000fffff846300)
    at ../../src-trunk/gcc/var-tracking.c:6864
#4  0x400000000050d330 in cselib_expand_value_rtx_1 (orig=0x20000000040b8c18, 
    evd=0x60000fffff846110, max_depth=5) at ../../src-trunk/gcc/cselib.c:1325
#5  0x400000000050ca40 in cselib_expand_value_rtx_cb (orig=0x20000000040b8c18, 
    regs_active=0x60000000002f01a0, max_depth=5, 
    cb=@0x4000000001fa1a30: 0x40000000016de380 <vt_expand_loc_callback>, 
    data=0x60000fffff846300) at ../../src-trunk/gcc/cselib.c:1207
#6  0x40000000016dee80 in vt_expand_loc_callback (x=0x60000000002e01e8, 
    regs=0x60000000002f01a0, max_depth=5, data=0x60000fffff846300)
    at ../../src-trunk/gcc/var-tracking.c:6923
#7  0x400000000050d7f0 in cselib_expand_value_rtx_1 (orig=0x60000000002e01e8, 
    evd=0x60000fffff8462b0, max_depth=5) at ../../src-trunk/gcc/cselib.c:1360
---Type <return> to continue, or q <return> to quit---
#8  0x400000000050ca40 in cselib_expand_value_rtx_cb (orig=0x60000000002e01e8, 
    regs_active=0x60000000002f01a0, max_depth=5, 
    cb=@0x4000000001fa1a30: 0x40000000016de380 <vt_expand_loc_callback>, 
    data=0x60000fffff846300) at ../../src-trunk/gcc/cselib.c:1207
#9  0x40000000016df840 in vt_expand_loc (loc=0x60000000002e01e8, 
    vars=0x6000000000347510) at ../../src-trunk/gcc/var-tracking.c:6986
#10 0x40000000016e0290 in emit_note_insn_var_location (
    varp=0x6000000000313c58, data=0x60000fffff8465a8)
    at ../../src-trunk/gcc/var-tracking.c:7084
#11 0x4000000001e65f80 in htab_traverse_noresize (htab=0x60000000002a0b20, 
    callback=@0x4000000001fa4c50: 0x40000000016dfb20
<emit_note_insn_var_location>, info=0x60000fffff8465a8) at
../../src-trunk/libiberty/hashtab.c:753
#12 0x4000000001e66180 in htab_traverse (htab=0x60000000002a0b20, 
    callback=@0x4000000001fa4c50: 0x40000000016dfb20
<emit_note_insn_var_location>, info=0x60000fffff8465a8) at
../../src-trunk/libiberty/hashtab.c:769
#13 0x40000000016e4020 in emit_notes_for_changes (insn=0x20000000040a5200, 
    where=EMIT_NOTE_AFTER_INSN, vars=0x600000000031f7c8)
    at ../../src-trunk/gcc/var-tracking.c:7410
#14 0x40000000016e6020 in emit_notes_in_bb (bb=0x20000000040389c0, 
    set=0x60000fffff846760) at ../../src-trunk/gcc/var-tracking.c:7625
#15 0x40000000016e7f80 in vt_emit_notes ()
    at ../../src-trunk/gcc/var-tracking.c:7876
#16 0x40000000016ed1a0 in variable_tracking_main_1 ()
---Type <return> to continue, or q <return> to quit---
    at ../../src-trunk/gcc/var-tracking.c:8480
#17 0x40000000016eccc0 in variable_tracking_main ()
    at ../../src-trunk/gcc/var-tracking.c:8493
#18 0x4000000001787a80 in ia64_reorg ()
    at ../../src-trunk/gcc/config/ia64/ia64.c:9310
#19 0x4000000000e12230 in rest_of_handle_machine_reorg ()
    at ../../src-trunk/gcc/reorg.c:4103
#20 0x4000000000c91ec0 in execute_one_pass (pass=0x600000000008b360)
    at ../../src-trunk/gcc/passes.c:1590
#21 0x4000000000c92ce0 in execute_pass_list (pass=0x600000000008b360)
    at ../../src-trunk/gcc/passes.c:1645
#22 0x4000000000c92d60 in execute_pass_list (pass=0x6000000000089b20)
    at ../../src-trunk/gcc/passes.c:1646
#23 0x4000000000c92d60 in execute_pass_list (pass=0x6000000000089ad0)
    at ../../src-trunk/gcc/passes.c:1646
#24 0x4000000001142520 in tree_rest_of_compilation (fndecl=0x2000000003f9df00)
    at ../../src-trunk/gcc/tree-optimize.c:413
#25 0x40000000017bab50 in cgraph_expand_function (node=0x2000000003f7b980)
    at ../../src-trunk/gcc/cgraphunit.c:1627
#26 0x40000000017bb470 in cgraph_expand_all_functions ()
    at ../../src-trunk/gcc/cgraphunit.c:1706
#27 0x40000000017bcd70 in cgraph_optimize ()
    at ../../src-trunk/gcc/cgraphunit.c:1954
---Type <return> to continue, or q <return> to quit---
#28 0x40000000017b5440 in cgraph_finalize_compilation_unit ()
    at ../../src-trunk/gcc/cgraphunit.c:1166
#29 0x4000000000106020 in c_write_global_declarations ()
    at ../../src-trunk/gcc/c-decl.c:9552
#30 0x4000000000fb84d0 in compile_file () at ../../src-trunk/gcc/toplev.c:1065
#31 0x4000000000fc01a0 in do_compile () at ../../src-trunk/gcc/toplev.c:2423
#32 0x4000000000fc0480 in toplev_main (argc=13, argv=0x60000fffff847708)
    at ../../src-trunk/gcc/toplev.c:2465
#33 0x4000000000312bc0 in main (argc=13, argv=0x60000fffff847708)
    at ../../src-trunk/gcc/main.c:35
(gdb) f 1
#1  0x4000000000f4fe20 in simplify_subreg (outermode=QImode, 
    op=0x200000000408f500, innermode=SImode, byte=0)
    at ../../src-trunk/gcc/simplify-rtx.c:5134
5134      gcc_assert (GET_MODE (op) == innermode
(gdb) call debug_rtx (op)
(reg:DI 112 r32 [orig:371 up ] [371])


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43994