Reducing the altreturn_5.f90 failure on i686-pc-linux-gnu, we get
$ cat alt.f90
SUBROUTINE R (i, *, *)
INTEGER i
RETURN i
END
$ gdb ~/libexec/gcc/i686-pc-linux-gnu/4.3.0/f951
GNU gdb 6.4.90-debian
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This GDB was configured as "i486-linux-gnu"...Using host libthread_db library
"/lib/i686/cmov/libthread_db.so.1".
(gdb) b fancy_abort
Breakpoint 1 at 0x81747c0: file ../../../gcc/trunk/gcc/diagnostic.c, line 654.
(gdb) r -fdefault-integer-8 -O1 alt.f90
Starting program: /home/ig25/libexec/gcc/i686-pc-linux-gnu/4.3.0/f951
-fdefault-integer-8 -O1 alt.f90
r
Analyzing compilation unit
Performing interprocedural optimizations
<visibility> <early_local_cleanups> <inline> <static-var>
<pure-const>Assembling functions:
r
Breakpoint 1, fancy_abort (file=0x875c16e "../../../gcc/trunk/gcc/expr.c",
line=3316, function=0x875ca0f "emit_move_insn")
at ../../../gcc/trunk/gcc/diagnostic.c:654
654 {
(gdb) bt
#0 fancy_abort (file=0x875c16e "../../../gcc/trunk/gcc/expr.c", line=3316,
function=0x875ca0f "emit_move_insn")
at ../../../gcc/trunk/gcc/diagnostic.c:654
#1 0x081d63d3 in emit_move_insn (x=0xb7b35d70, y=0xb7b35dd0)
at ../../../gcc/trunk/gcc/expr.c:3315
#2 0x0831e856 in expand_value_return (val=0xb7b35dd0)
at ../../../gcc/trunk/gcc/stmt.c:1545
#3 0x0831ed0a in expand_return (retval=0xb7b2f594)
at ../../../gcc/trunk/gcc/stmt.c:1729
#4 0x081c568a in expand_expr_real_1 (exp=0xb7b29da0, target=0x0,
tmode=VOIDmode, modifier=EXPAND_NORMAL, alt_rtl=0x0)
at ../../../gcc/trunk/gcc/expr.c:8929
#5 0x081d4e43 in expand_expr_real (exp=0xb7b29da0, target=0xb7ab0210,
tmode=VOIDmode, modifier=EXPAND_NORMAL, alt_rtl=0x0)
at ../../../gcc/trunk/gcc/expr.c:6902
#6 0x08318d6c in expand_expr_stmt (exp=0xb7b29da0)
at ../../../gcc/trunk/gcc/expr.h:503
#7 0x0864acbf in expand_gimple_basic_block (bb=0xb7f29528)
at ../../../gcc/trunk/gcc/cfgexpand.c:1614
#8 0x0864bd38 in tree_expand_cfg () at ../../../gcc/trunk/gcc/cfgexpand.c:1921
#9 0x082ab42f in execute_one_pass (pass=0x882e3e0)
at ../../../gcc/trunk/gcc/passes.c:1124
#10 0x082ab62f in execute_pass_list (pass=0x882e3e0)
---Type <return> to continue, or q <return> to quit---
at ../../../gcc/trunk/gcc/passes.c:1177
#11 0x0838ebd2 in tree_rest_of_compilation (fndecl=0xb7b2ae00)
at ../../../gcc/trunk/gcc/tree-optimize.c:405
#12 0x08502870 in cgraph_expand_function (node=0xb7b2af00)
at ../../../gcc/trunk/gcc/cgraphunit.c:1072
#13 0x08504fd0 in cgraph_optimize ()
at ../../../gcc/trunk/gcc/cgraphunit.c:1141
#14 0x080b96c5 in gfc_be_parse_file (set_yydebug=0)
at ../../../gcc/trunk/gcc/fortran/f95-lang.c:305
#15 0x0832db78 in toplev_main (argc=4, argv=0xbfb7c9a4)
at ../../../gcc/trunk/gcc/toplev.c:1043
#16 0x0810067f in main (argc=201326619, argv=0x0)
at ../../../gcc/trunk/gcc/main.c:35
--
Summary: ICE in emit_move_insn with -fdefault-integer-8
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Keywords: wrong-code
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: tkoenig at gcc dot gnu dot org
OtherBugsDependingO 32770
nThis:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32938
