This patch causes numerous new testsuite failure on AIX caused by the
compiler crashing during compilation, e.g.
gcc.c-torture/execute/20020206-1.c
in GCC libcpp
991 linemap_assert (line >= LINEMAPS_MACRO_LOWEST_LOCATION (set));
(gdb) where
#0 _Z11fancy_abortPKciS0_ (
file=0x11296dc0
<_GLOBAL__F__ZN9text_info9set_rangeEj12source_rangeb+3056>
"/nasfarm/edelsohn/src/src/libcpp/line-map.c", line=991,
function=0x11296f30
<_GLOBAL__F__ZN9text_info9set_rangeEj12source_rangeb+3424>
"linemap_macro_map_lookup")
at /nasfarm/edelsohn/src/src/gcc/diagnostic.c:1332
#1 0x100169b4 in _Z14linemap_lookupP9line_mapsj (set=0x70000000, line=991)
at /nasfarm/edelsohn/src/src/libcpp/line-map.c:991
#2 0x100188f8 in
_Z40linemap_unwind_to_first_non_reserved_locP9line_mapsjPPK8line_map
(set=0x70000000, loc=991, map=0x0)
at /nasfarm/edelsohn/src/src/libcpp/line-map.c:1629
#3 0x100753c8 in _ZL17expand_location_1jb (loc=889323520,
expansion_point_p=false) at /nasfarm/edelsohn/src/src/gcc/input.c:158
#4 0x10076488 in _Z48linemap_client_expand_location_to_spelling_pointj (
loc=991) at /nasfarm/edelsohn/src/src/gcc/input.c:751
#5 0x10019928 in _ZN13rich_location9add_rangeEjjb (this=0x2ff21cd8,
start=991, finish=889323520, show_caret_p=true)
at /nasfarm/edelsohn/src/src/libcpp/line-map.c:2012
#6 0x10019a54 in _ZN13rich_locationC2EP9line_mapsj (this=0x2ff21cd8,
set=0x3df, loc=287928112)
at /nasfarm/edelsohn/src/src/libcpp/line-map.c:2024
#7 0x1000ed84 in _Z7warningiPKcz (opt=164,
gmsgid=0x11488d18
<_GLOBAL__F__Z20prepare_call_addressP9tree_nodeP7rtx_defS2-
_PS2_ii+3752> "function call has aggregate value")
at /nasfarm/edelsohn/src/src/gcc/diagnostic.c:1003
#8 0x1067ebac in _Z11expand_callP9tree_nodeP7rtx_defi (exp=0x700dcf20,
target=0x700ec080, ignore=0) at /nasfarm/edelsohn/src/src/gcc/calls.c:2476
#9 0x10406858 in
_Z18expand_expr_real_1P9tree_nodeP7rtx_def12machine_mode15expand_modifierPS2_b
(exp=0x700dcf20, target=0x700ec080, tmode=BLKmode,
modifier=EXPAND_NORMAL, alt_rtl=0x17, inner_reference_p=false)
at /nasfarm/edelsohn/src/src/gcc/expr.c:10581
#10 0x104158c0 in _Z22store_expr_with_boundsP9tree_nodeP7rtx_defibbS0_ (
exp=0x700dcf20, target=0x700ec080, call_param_p=0, nontemporal=false,
reverse=false, btarget=0x700df058)
at /nasfarm/edelsohn/src/src/gcc/expr.c:5405
#11 0x104178fc in _Z17expand_assignmentP9tree_nodeS0_b (to=0x700df058,
from=0x700dcf20, nontemporal=false)
at /nasfarm/edelsohn/src/src/gcc/expr.c:5174
#12 0x106f67b4 in _ZL18expand_gimple_stmtP6gimple (stmt=0x7000e240)
at /nasfarm/edelsohn/src/src/gcc/cfgexpand.c:6278
#13 0x106f87d8 in _ZL25expand_gimple_basic_blockP15basic_block_defb (
bb=0x700c7740, disable_tail_calls=false)
at /nasfarm/edelsohn/src/src/gcc/cfgexpand.c:5679
#14 0x106ffbf4 in _ZN12_GLOBAL__N_111pass_expand7executeEP8function (
this=0x11296dc0
<_GLOBAL__F__ZN9text_info9set_rangeEj12source_rangeb+3056>,
fun=0x70009138) at /nasfarm/edelsohn/src/src/gcc/cfgexpand.c:6291
