https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92715
Bug ID: 92715
Summary: error: position plus size exceeds size of referenced
object in ‘bit_field_ref’
Product: gcc
Version: 10.0
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 47390
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47390&action=edit
gzipped C++ source code
For the attached C++ source code, compiled by recent gcc trunk
and compiler flag -O3 -march=native, does this:
/home/dcb/gcc/results.278750/bin/g++
/home/dcb/gcc/results.278800/bin/g++
/home/dcb30/rpmbuild/BUILD/ompl-1.3.2-Source/src/ompl/geometric/planners/rrt/src
/VFRRT.cpp: In member function ‘Eigen::VectorXd
ompl::geometric::VFRRT::getNewDi
rection(const ompl::base::State*, const ompl::base::State*)’:
/home/dcb30/rpmbuild/BUILD/ompl-1.3.2-Source/src/ompl/geometric/planners/rrt/src
/VFRRT.cpp:93:17: error: position plus size exceeds size of referenced object
in
‘bit_field_ref’
93 | Eigen::VectorXd ompl::geometric::VFRRT::getNewDirection(const
base::Stat
e *qnear, const base::State *qrand)
| ^~~~
_69 = BIT_FIELD_REF <_67, 256, 0>;
during GIMPLE pass: forwprop
/home/dcb30/rpmbuild/BUILD/ompl-1.3.2-Source/src/ompl/geometric/planners/rrt/src
/VFRRT.cpp:93:17: internal compiler error: verify_gimple failed
0x1155fc9 verify_gimple_in_cfg(function*, bool)
../../trunk/gcc/tree-cfg.c:5445
0x1004a5f execute_function_todo
../../trunk/gcc/passes.c:1983
0x1005e11 do_per_function
../../trunk/gcc/passes.c:1638
0x1005e11 execute_todo
../../trunk/gcc/passes.c:2037
The bug seems to start sometime between revision 278750 and 278800.
/proc/cpuinfo says:
cpu family : 21
model : 2
model name : AMD FX(tm)-8350 Eight-Core Processor
stepping : 0
I'll have my usual go at reducing the code.
