Add comments for SSA data.
@@ -1412,11 +1412,11 @@ DEF_VARR (bb_insn_t);
struct ssa_ctx {
bitmap_t bb_processed;
VARR (int) * var_indexes;
- VARR (bb_insn_t) * arg_bb_insns;
- VARR (bb_insn_t) * undef_insns;
+ /* Insns defining undef and initial arg values. They are not in insn lists. */
+ VARR (bb_insn_t) * arg_bb_insns, *undef_insns;
VARR (bb_insn_t) * phis;
VARR (MIR_op_t) * temp_ops;
- HTAB (def_tab_el_t) * def_tab;
+ HTAB (def_tab_el_t) * def_tab; /* var,bb -> insn defining var */
VARR (incomplete_phis_t) * bb_incomplete_phis; /* bb index -> incomplete phis */
};
