https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106723
--- Comment #3 from Richard Earnshaw ---
I think we should error if the name matches some iteration values, but not
others. If is valid in the assembler output 'as-is' then it's bad form
to have an attribute that overloads this - and the fix
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106723
--- Comment #2 from Jakub Jelinek ---
I think better would be to error out (or just warn) if we see a valid mode/code
attribute which doesn't handle the corresponding mode/code.
For the PR106721, that would diagnose all but the last issue where
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106723
--- Comment #1 from Richard Biener ---
I wonder if the generator should simply skip mode combinations when a mode
attribute fails to expand? That could be also used as "conditional iteration"
using a mode attribute expanding to "".
