[Bug middle-end/114289] Non-optimal assembly for accessing bit-fields in packed structs

[dan at stahlke dot org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114289

--- Comment #3 from Dan Stahlke <dan at stahlke dot org> ---
Variants that generate more reasonable results:

struct foo {
    int x:32;
} __attribute__((packed));

struct foo {
    int x:16;
} __attribute__((packed));

struct foo {
    int x:31;
};

struct foo {
    int x:31;
} __attribute__((packed, aligned(4)));