[Bug rtl-optimization/124574] sparseset_bit_p causes valgrind false positives on non-annotated compiler builds

[albert at tugraz dot at via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124574

--- Comment #1 from Christopher Albert <albert at tugraz dot at> ---
Created attachment 63971
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=63971&action=edit
Proposed patch

Initialize only the sparse index vector in sparseset_alloc. This keeps
sparseset_clear O(1) while removing the valgrind false positives on
non-annotated compiler builds.