PR rtl-optimization/46034
PR rtl-optimization/46212
PR rtl-optimization/46248
* combine.c (try_combine): If added_sets_2 where i0dest_in_i0src
and i0 feeds i1 and i1 feeds i2 or i0 feeds i2, make a copy of i1src
before i0dest -> i0src substitution and pass 1 instead of 0 as last
argument to subst on i2pat.
* gcc.c-torture/compile/pr46034.c: New test.
* gcc.c-torture/compile/pr46248.c: New test.
* gcc.dg/pr46212.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@166231
138bc75d-0d04-0410-961f-
82ee72b054a4