https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80763
Bug ID: 80763
Summary: -O3 causes error: inline clone in same comdat group
list
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
Created attachment 41360
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41360&action=edit
gzipped C++ source code
The attached code does this with -O3
wavetable.cpp:622:1: error: inline clone in same comdat group list
_ZThn232_N12calf_plugins22wavetable_audio_module7processEjjjj.artificial_thunk.36/3381
(_ZThn232_N12calf_plugins22wavetable_audio_module7processEjjjj.artificial_thunk.36)
@0x7f866b098b80
Type: function definition analyzed
Visibility:
comdat_group:_ZN12calf_plugins12audio_moduleINS_18wavetable_metadataEE13process_sliceEjj
artificial
Same comdat group as:
_ZThn232_N12calf_plugins22wavetable_audio_module7processEjjjj.artificial_thunk.36/3301
next sharing asm name: 3301
References:
Referring:
Function
_ZThn232_N12calf_plugins22wavetable_audio_module7processEjjjj.artificial_thunk.36/3381
is inline copy in virtual uint32_t
calf_plugins::audio_module<calf_plugins::wavetable_metadata>::_ZThn232_N12calf_plugins12audio_moduleINS_18wavetable_metadataEE13process_sliceEjj(uint32_t,
uint32_t)/2956
Clone of
_ZThn232_N12calf_plugins22wavetable_audio_module7processEjjjj.artificial_thunk.36/3301
Availability: local
First run: 0
Function flags: local
Thunk fixed offset -232 virtual value 0 has virtual offset 0)
Called by:
_ZN12calf_plugins12audio_moduleINS_18wavetable_metadataEE13process_sliceEjj/3380
(speculative) (inlined) (3.90 per call) (can throw external)
Calls:
_ZN12calf_plugins22wavetable_audio_module7processEjjjj.constprop.35/3300 (3.90
per call)
wavetable.cpp:622:1: internal compiler error: verify_cgraph_node failed
0x9853ab cgraph_node::verify_node()
../../trunk/gcc/cgraph.c:3507
0x979724 symtab_node::verify()
../../trunk/gcc/symtab.c:1191
0x979724 symtab_node::verify_symtab_nodes()
../../trunk/gcc/symtab.c:1211
0x98daa3 symtab_node::checking_verify_symtab_nodes()
../../trunk/gcc/cgraph.h:613
The problem seems to exist between revisions 247438 and 247811.
I'll have a go at trying to reduce that range.
I'll also have a go at reducing the code.
