https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99679
Bug ID: 99679
Summary: [11 Regression] ICE in construct_container at
gcc/config/i386/i386.c:2571 since
g:5e2eabe1eed1e53d39923517122d3c7de2013ad4
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: hjl.tools at gmail dot com
Target Milestone: ---
The following fails:
$ ./xgcc -B.
/home/marxin/Programming/gcc/gcc/testsuite/g++.dg/ext/va-arg-pack-1.C -Ofast
-fipa-pta -mno-80387 -c
during IPA pass: pta
/home/marxin/Programming/gcc/gcc/testsuite/g++.dg/ext/va-arg-pack-1.C:145:1:
internal compiler error: Segmentation fault
145 | }
| ^
0x172225c crash_signal
/home/marxin/Programming/gcc/gcc/toplev.c:327
0x7ffff789452f ???
/usr/src/debug/glibc-2.33-4.1.x86_64/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0
0x1c2f379 construct_container
/home/marxin/Programming/gcc/gcc/config/i386/i386.c:2571
0x1c33420 function_value_64
/home/marxin/Programming/gcc/gcc/config/i386/i386.c:3970
0x1c33a11 ix86_function_value_1
/home/marxin/Programming/gcc/gcc/config/i386/i386.c:4055
0x1c33abc ix86_function_value
/home/marxin/Programming/gcc/gcc/config/i386/i386.c:4067
0x11a3cbf hard_function_value(tree_node const*, tree_node const*, tree_node
const*, int)
/home/marxin/Programming/gcc/gcc/explow.c:2244
0x126d89c aggregate_value_p(tree_node const*, tree_node const*)
/home/marxin/Programming/gcc/gcc/function.c:2122
0x1a15d33 find_func_aliases_for_call
/home/marxin/Programming/gcc/gcc/tree-ssa-structalias.c:4933
0x1a16107 find_func_aliases
/home/marxin/Programming/gcc/gcc/tree-ssa-structalias.c:5010
0x1a20068 ipa_pta_execute
/home/marxin/Programming/gcc/gcc/tree-ssa-structalias.c:8298
0x1a20f98 execute
/home/marxin/Programming/gcc/gcc/tree-ssa-structalias.c:8606
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
$ (gdb) bt
#0 construct_container (mode=E_XFmode, orig_mode=E_XFmode, type=<real_type
0x7ffff76073f0 long double>, in_return=1, nintregs=6, nsseregs=8,
intreg=0x2c90220 <x86_64_int_return_registers>, sse_regno=0) at
/home/marxin/Programming/gcc/gcc/config/i386/i386.c:2571
#1 0x0000000001c33421 in function_value_64 (orig_mode=E_XFmode, mode=E_XFmode,
valtype=<real_type 0x7ffff76073f0 long double>) at
/home/marxin/Programming/gcc/gcc/config/i386/i386.c:3970
#2 0x0000000001c33a12 in ix86_function_value_1 (valtype=<real_type
0x7ffff76073f0 long double>, fntype_or_decl=<tree 0x0>, orig_mode=E_XFmode,
mode=E_XFmode) at /home/marxin/Programming/gcc/gcc/config/i386/i386.c:4055
#3 0x0000000001c33abd in ix86_function_value (valtype=<real_type
0x7ffff76073f0 long double>, fntype_or_decl=<tree 0x0>) at
/home/marxin/Programming/gcc/gcc/config/i386/i386.c:4067
#4 0x00000000011a3cc0 in hard_function_value (valtype=<real_type
0x7ffff76073f0 long double>, func=<tree 0x0>, fntype=<tree 0x0>, outgoing=0) at
/home/marxin/Programming/gcc/gcc/explow.c:2244
#5 0x000000000126d89d in aggregate_value_p (exp=<ssa_name 0x7ffff778dab0 18>,
fntype=<tree 0x0>) at /home/marxin/Programming/gcc/gcc/function.c:2122
#6 0x0000000001a15d34 in find_func_aliases_for_call (fn=0x7ffff77600b8,
t=0x7ffff7777130) at
/home/marxin/Programming/gcc/gcc/tree-ssa-structalias.c:4933
#7 0x0000000001a16108 in find_func_aliases (fn=0x7ffff77600b8,
origt=<gimple_call 0x7ffff7777130>) at
/home/marxin/Programming/gcc/gcc/tree-ssa-structalias.c:5010
#8 0x0000000001a20069 in ipa_pta_execute () at
/home/marxin/Programming/gcc/gcc/tree-ssa-structalias.c:8298
#9 0x0000000001a20f99 in (anonymous namespace)::pass_ipa_pta::execute
(this=0x390ba30) at
/home/marxin/Programming/gcc/gcc/tree-ssa-structalias.c:8606
#10 0x00000000015cf140 in execute_one_pass (pass=<opt_pass* 0x390ba30
"pta"(98)>) at /home/marxin/Programming/gcc/gcc/passes.c:2567
#11 0x00000000015d0251 in execute_ipa_pass_list (pass=<opt_pass* 0x390ba30
"pta"(98)>) at /home/marxin/Programming/gcc/gcc/passes.c:2996
#12 0x00000000010879be in symbol_table::compile (this=0x7ffff75e5000) at
/home/marxin/Programming/gcc/gcc/cgraphunit.c:2325
#13 0x0000000001087e63 in symbol_table::finalize_compilation_unit
(this=0x7ffff75e5000) at /home/marxin/Programming/gcc/gcc/cgraphunit.c:2543
#14 0x00000000017227ba in compile_file () at
/home/marxin/Programming/gcc/gcc/toplev.c:482
#15 0x0000000001726475 in do_compile () at
/home/marxin/Programming/gcc/gcc/toplev.c:2201
#16 0x0000000001726809 in toplev::main (this=0x7fffffffdc8e, argc=22,
argv=0x7fffffffdd98) at /home/marxin/Programming/gcc/gcc/toplev.c:2340
#17 0x000000000297caae in main (argc=22, argv=0x7fffffffdd98) at
/home/marxin/Programming/gcc/gcc/main.c:39
(gdb) p cfun
$1 = (function *) 0x0
