https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109750
Bug ID: 109750
Summary: Incorrect code generated for shifted bit field
Product: gcc
Version: 9.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: jim.gray at atos dot net
Target Milestone: ---
Created attachment 55008
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55008&action=edit
Tar file with source, assembly listing, compile script, executable
Attached is a simple program that shows the problem encountered.
Bad output when compiling with GCC compiler on Ubuntu
~/gcc-bug$ ./gccbug
Source = 000000020000
Target = 000000000200
Target = 1777777777760000000200
Good output when compiling with MS C++ compiler on Windows:
>gccbug
Source = 000000020000
Target = 000000000200
Target = 020000000200
