* unroll.c: Removed.

	* loop.h: Removed.
	* Makefile.in (LOOP_H, unroll.o): Removed.
	(toplev.o, passes.o, stmt.o, integrate.o, loop.o): Remove LOOP_H
	dependency.
	* alias.c (init_alias_analysis): Remove flag_old_unroll_loops
	reference.
	* cfgloop.h (LOOP_PREFETCH, loop_optimize): Moved from loop.h.
	* common.opt (fold-unroll-loops, fold-unroll-all-loops): Removed.
	* loop.c: Do not include loop.h.
	(LOOP_INFO, LOOP_MOVABLES, LOOP_REGS, LOOP_IVS, INSN_LUID,
	REGNO_FIRST_LUID, REGNO_LAST_LUID, enum g_types, struct induction,
	struct iv_class, enum iv_mode, struct iv, REG_IV_TYPE, REG_IV_INFO,
	REG_IV_CLASS, struct loop_ivs, struct loop_mem_info, struct loop_reg,
	struct loop_regs, struct loop_movables, struct loop_info): Moved
	from loop.h.
	(back_branch_in_range_p, fold_rtx_mult_add, biv_total_increment,
	reg_dead_after_loop, final_biv_value, loop_find_equiv_value,
	find_common_reg_term, loop_iterations, final_giv_value): Moved
	from unroll.c.
	(uid_luid, uid_loop, max_uid_for_loop, max_reg_before_loop,
	loop_dump_stream, for_each_insn_in_loop, express_from,
	extend_value_for_giv, loop_iv_add_mult_emit_before,
	loop_iv_add_mult_sink, loop_iv_add_mult_hoist,
	loop_insn_first_p, get_condition_for_loop,
	loop_insn_emit_before, loop_insn_hoist,
	loop_insn_sink): Made static.
	(loop_invariant_p): Made static.  Removed flag_old_unroll_loops
	reference.
	(strength_reduce): Do not call unroller.
	(record_giv): Do not initialize unrolled field.
	(prescan_loop): Do not set loop_info->preconditioned.
	* passes.c: Do not include loop.h.
	(rest_of_handle_loop_optimize): Do not call unroller.
	* predict.c: Do not include loop.h.
	* rtl.h (NOTE_PRECONDITIONED): Removed.
	* stmt.c: Do not include loop.h.
	* toplev.c: Do not include loop.h.
	(process_options): Do not handle flag_old_unroll_loops.

	* doc/invoke.texi (fold-unroll-loops, fold-unroll-all-loops):
	Documentation removed.
	* doc/passes.texi (unroll.c, loop.h): Documentation removed.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@87485 138bc75d-0d04-0410-961f-82ee72b054a4

2 files changed, 4 insertions, 24 deletions

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 4cb1c1599d4..567dc5caf92 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -315,7 +315,7 @@ Objective-C and Objective-C++ Dialects}.
 -fsignaling-nans -fsingle-precision-constant  -fspeculative-prefetching @gol
 -fstrength-reduce  -fstrict-aliasing  -ftracer  -fthread-jumps @gol
 -funroll-all-loops  -funroll-loops  -fpeel-loops @gol
--funswitch-loops  -fold-unroll-loops  -fold-unroll-all-loops @gol
+-funswitch-loops @gol
 -ftree-pre  -ftree-ccp  -ftree-dce -ftree-loop-optimize @gol
 -ftree-loop-linear -ftree-loop-im -ftree-loop-ivcanon -fivopts @gol
 -ftree-dominator-opts -ftree-dse -ftree-copyrename @gol
@@ -4423,8 +4423,7 @@ redundant spilling.
 @item -floop-optimize
 @opindex floop-optimize
 Perform loop optimizations: move constant expressions out of loops, simplify
-exit test conditions and optionally do strength-reduction and loop unrolling as
-well.
+exit test conditions and optionally do strength-reduction as well.
 
 Enabled at levels @option{-O}, @option{-O2}, @option{-O3}, @option{-Os}.
 
@@ -5222,22 +5221,6 @@ at level @option{-O1}
 Move branches with loop invariant conditions out of the loop, with duplicates
 of the loop on both branches (modified according to result of the condition).
 
-@item -fold-unroll-loops
-@opindex fold-unroll-loops
-Unroll loops whose number of iterations can be determined at compile
-time or upon entry to the loop, using the old loop unroller whose loop
-recognition is based on notes from frontend.  @option{-fold-unroll-loops} implies
-both @option{-fstrength-reduce} and @option{-frerun-cse-after-loop}.  This
-option makes code larger, and may or may not make it run faster.
-
-@item -fold-unroll-all-loops
-@opindex fold-unroll-all-loops
-Unroll all loops, even if their number of iterations is uncertain when
-the loop is entered. This is done using the old loop unroller whose loop
-recognition is based on notes from frontend.  This usually makes programs run more slowly.
-@option{-fold-unroll-all-loops} implies the same options as
-@option{-fold-unroll-loops}.
-
 @item -fprefetch-loop-arrays
 @opindex fprefetch-loop-arrays
 If supported by the target machine, generate instructions to prefetch
diff --git a/gcc/doc/passes.texi b/gcc/doc/passes.texi
index f7f38738c93..00a53978a7d 100644
--- a/gcc/doc/passes.texi
+++ b/gcc/doc/passes.texi
@@ -540,11 +540,8 @@ are in @file{lcm.c}.
 
 @item Loop optimization
 
-This pass moves constant expressions out of loops,
-and optionally does strength-reduction and loop unrolling as well.
-Its source files are @file{loop.c} and @file{unroll.c}, plus the header
-@file{loop.h} used for communication between them.  Loop unrolling uses
-some functions in @file{integrate.c} and the header @file{integrate.h}.
+This pass moves constant expressions out of loops, and optionally does
+strength-reduction as well.  The pass is located in @file{loop.c}.
 Loop dependency analysis routines are contained in @file{dependence.c}.
 This pass is seriously out-of-date and is supposed to be replaced by
 a new one described below in near future.