https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99383
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |marxin at gcc dot gnu.org
Status|UNCONFIRMED |NEW
Keywords| |missed-optimization
Last reconfirmed| |2021-03-04
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Same for -fPIE. The reason is:
Bailing out - value from a case would need runtime relocations.
reloc = initializer_constant_valid_p (val, TREE_TYPE (val));
if ((flag_pic && reloc != null_pointer_node)
|| (!flag_pic && reloc == NULL_TREE))
{
if (reloc)
reason
= "value from a case would need runtime relocations";
reloc is a STRING_CST here. Not sure why it says 'runtime relocation' or what
that should be. It's a reloc in .rodata to sth in .string.
