https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102189
Bug ID: 102189
Summary: error: unrecognized command-line option '-fno-[...]';
did you mean '-ftree-[...]'?
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: driver
Assignee: unassigned at gcc dot gnu.org
Reporter: tschwinge at gcc dot gnu.org
CC: dmalcolm at gcc dot gnu.org
Target Milestone: ---
For example:
xgcc: error: unrecognized command-line option ‘-fno-loop-vectorize’; did
you mean ‘-ftree-loop-vectorize’?
xgcc: error: unrecognized command-line option ‘-fno-slp-vectorize’; did you
mean ‘-ftree-slp-vectorize’?
See how the 'no-' prefix gets lost. If, for example, '-fno-loop-vectorize' is
specified, it would be more useful to suggest '-fno-tree-loop-vectorize' (again
with '-fno-[...]' prefix) instead of '-ftree-loop-vectorize'.
Maybe we can give the original 'no-' prefix a higher weight or something?
