PR tree-optimization/70771
PR tree-optimization/70775
* tree-if-conv.c (if_convertible_phi_p): Remove check on special
virtual PHI nodes. Delete parameter.
(if_convertible_loop_p_1): Delete argument to above function.
(predicate_all_scalar_phis): Delete code handling single-argument
PHIs.
(tree_if_conversion): Mark and update virtual SSA.
gcc/testsuite/ChangeLog
PR tree-optimization/70771
PR tree-optimization/70775
* gcc.dg/pr70771.c: New test.
* gcc.dg/pr70771.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235436 138bc75d-0d04-0410-961f-82ee72b054a4