From dea92fef4dd758ff71257e63f224dfbd6883c3ab Mon Sep 17 00:00:00 2001 From: David Malcolm Date: Wed, 25 Jun 2014 10:13:31 -0400 Subject: [PATCH 081/236] hw-doloop: Use rtx_insn (touches config/bfin/bfin.c) gcc/ * hw-doloop.h (struct hwloop_info_d): Strengthen fields "last_insn", "loop_end" from rtx to rtx_insn *. * hw-doloop.c (scan_loop): Likewise for local "insn". (discover_loop): Likewise for param "tail_insn". (discover_loops): Likewise for local "tail". * config/bfin/bfin.c (hwloop_optimize): For now, add a checked cast to rtx_insn * when assigning from an rtx local to a hwloop_info's "last_insn" field. --- gcc/config/bfin/bfin.c | 2 +- gcc/hw-doloop.c | 6 +++--- gcc/hw-doloop.h | 4 ++-- 3 files changed, 6 insertions(+), 6 deletions(-) diff --git a/gcc/config/bfin/bfin.c b/gcc/config/bfin/bfin.c index b037a46..02bd4bd 100644 --- a/gcc/config/bfin/bfin.c +++ b/gcc/config/bfin/bfin.c @@ -3654,7 +3654,7 @@ hwloop_optimize (hwloop_info loop) last_insn = emit_insn_after (gen_forced_nop (), last_insn); } - loop->last_insn = last_insn; + loop->last_insn = as_a_nullable (last_insn); /* The loop is good for replacement. */ start_label = loop->start_label; diff --git a/gcc/hw-doloop.c b/gcc/hw-doloop.c index d182761..bb66982 100644 --- a/gcc/hw-doloop.c +++ b/gcc/hw-doloop.c @@ -94,7 +94,7 @@ scan_loop (hwloop_info loop) for (ix = 0; loop->blocks.iterate (ix, &bb); ix++) { - rtx insn; + rtx_insn *insn; edge e; edge_iterator ei; @@ -232,7 +232,7 @@ add_forwarder_blocks (hwloop_info loop) the expected use; targets that call into this code usually replace the loop counter with a different special register. */ static void -discover_loop (hwloop_info loop, basic_block tail_bb, rtx tail_insn, rtx reg) +discover_loop (hwloop_info loop, basic_block tail_bb, rtx_insn *tail_insn, rtx reg) { bool found_tail; unsigned dwork = 0; @@ -359,7 +359,7 @@ discover_loops (bitmap_obstack *loop_stack, struct hw_doloop_hooks *hooks) structure and add the head block to the work list. */ FOR_EACH_BB_FN (bb, cfun) { - rtx tail = BB_END (bb); + rtx_insn *tail = BB_END (bb); rtx insn, reg; while (tail && NOTE_P (tail) && tail != BB_HEAD (bb)) diff --git a/gcc/hw-doloop.h b/gcc/hw-doloop.h index 9fc3c15..a98f213 100644 --- a/gcc/hw-doloop.h +++ b/gcc/hw-doloop.h @@ -66,10 +66,10 @@ struct GTY (()) hwloop_info_d basic_block successor; /* The last instruction in the tail. */ - rtx last_insn; + rtx_insn *last_insn; /* The loop_end insn. */ - rtx loop_end; + rtx_insn *loop_end; /* The iteration register. */ rtx iter_reg; -- 1.8.5.3