https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120326
Bug ID: 120326
Summary: problems with attribute __ms_struct__
Product: gcc
Version: 16.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
For this C code:
struct {
unsigned char a : 3;
unsigned char b : 4;
unsigned short c : 6
};
struct {
unsigned char a : 3;
unsigned char b : 4;
unsigned short c : 6
} __attribute__((__ms_struct__));
lightly derived from clang/test/CodeGen/ms_struct-bitfield.c,
gcc does this:
foundBugs $ ../results/bin/gcc -c -w bug1100.c
foundBugs $ ../results/bin/gcc -c -w -g bug1100.c
bug1100.c:10:1: error: ‘TYPE_CANONICAL’ is not compatible
10 | } __attribute__((__ms_struct__));
| ^
