https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116315
Bug ID: 116315
Summary: [14/15 regression] False-positive
-Wmaybe-uninitialized at -O3
Product: gcc
Version: 14.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: drfiemost at yahoo dot com
Target Milestone: ---
Created attachment 58888
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58888&action=edit
Preprocessed source
Compiling the attached code at -O3 produces the following warning:
../../../vice-git/src/resid/filter8580new.cc: In constructor
‘reSID::Filter::Filter()’:
../../../vice-git/src/resid/filter8580new.cc:326:54: warning: ‘scaled_voltage’
may be used uninitialized [-Wmaybe-uninitialized]
../../../vice-git/src/resid/filter8580new.cc:301:20: note: ‘scaled_voltage’
declared here
Command to reproduce:
g++ -O3 -Wmaybe-uninitialized filter8580new.i
It has been reported in 14.1 and I get the same with 14.2 and 15.0-20240804
The warning does not show up at -O2, I haven't been able to isolate a single
optimization flag that triggers the issue though.
