https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106447
Roger Sayle <roger at nextmovesoftware dot com> changed:
What |Removed |Added
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CC| |roger at nextmovesoftware dot
com
--- Comment #1 from Roger Sayle <roger at nextmovesoftware dot com> ---
It looks like the problem is caused by the way QImode isn't a first class
citizen on nvptx, so QImode values are typically promoted internally to SImode.
The problem will be in cfgexpand.cc's expand_value_return, which is the next
function up in the call stack, which has called emit_move_insn with mismatched
RTX modes.
It would be good to know what mode and old_mode are in this function, and
therefore why the call to convert_modes isn't doing what its supposed to.
