https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91761
Bug ID: 91761
Summary: Overloaded new operator compiled with -O3 option
distorts original C++ code
Product: gcc
Version: 7.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: redsoftk at yahoo dot com
Target Milestone: ---
Created attachment 46878
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46878&action=edit
simple sample to reproduce the problem
Starting from gcc ver 7.4 (versions <=5.4 worked correctly) the code
implementing overloading new operators produces strange binary: in the case of
filling allocated memory with some values the compiler produces 0-value
assignments instead of assignment actual variables.
Attached is the simple example showing the problem.
To compile it use g++ with simple options:
g++ -c -Wextra -Wall -O3 -o OverloadedNewGccBug.o OverloadedNewGccBug.cpp
g++ -o Test OverloadedNewGccBug.o
Then run the Test executable.
