PR tree-optimization/60823
* omp-low.c (ipa_simd_modify_function_body): Go through
all SSA_NAMEs and for those refering to vector arguments
which are going to be replaced adjust SSA_NAME_VAR and,
if it is a default definition, change it into a non-default
definition assigned at the beginning of function from new_decl.
(ipa_simd_modify_stmt_ops): Rewritten.
* tree-dfa.c (set_ssa_default_def): When removing default def,
check for NULL loc instead of NULL *loc.
* c-c++-common/gomp/pr60823-1.c: New test.
* c-c++-common/gomp/pr60823-2.c: New test.
* c-c++-common/gomp/pr60823-3.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@209616 138bc75d-0d04-0410-961f-82ee72b054a4