From 3f37d4659f6f267e380af076f90439d7aceeea23 Mon Sep 17 00:00:00 2001 From: rakdver Date: Fri, 20 Jan 2006 00:46:37 +0000 Subject: * loop-iv.c: Include df.h and hashtab.h. (enum iv_grd_result): New enum. (DF_REF_IV, DF_REF_IV_SET): New macros. (struct biv_entry): New. (df, bivs): New global variables. (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no, assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p): Removed. (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr, iv_analyze_result, iv_analyze_def, biv_hash, biv_eq, analyzed_for_bivness_p, record_biv): New functions. (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p, get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op, iv_analyze, biv_p, iv_analysis_done): Work with df representation of UD chains. (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set analysed. (iv_number_of_iterations): Use new interface to iv analysis. * loop-unroll.c: Do not include varray.h. (analyze_iv_to_split_insn): Use new interface to iv analysis. * loop-unswitch.c (may_unswitch_on): Ditto. * df.c (df_bitmaps_free): Only work for bbs for that structures are allocated. (df_bb_modify): Realloc tables to the new index. (df_find_use): New function. * df.h (df_find_use): Declare. * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be outmode. * cfgloop.h (struct rtx_iv): Remove analysed field. (iv_get_reaching_def): Removed. (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare. * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency. (loop-iv.o): Add df.h and hashtab.h dependency. * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@110005 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/loop-unswitch.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'gcc/loop-unswitch.c') diff --git a/gcc/loop-unswitch.c b/gcc/loop-unswitch.c index 8a71f72fd53..c76f481e08e 100644 --- a/gcc/loop-unswitch.c +++ b/gcc/loop-unswitch.c @@ -172,7 +172,7 @@ unswitch_loops (struct loops *loops) static rtx may_unswitch_on (basic_block bb, struct loop *loop, rtx *cinsn) { - rtx test, at, insn, op[2], stest; + rtx test, at, op[2], stest; struct rtx_iv iv; unsigned i; enum machine_mode mode; @@ -205,8 +205,7 @@ may_unswitch_on (basic_block bb, struct loop *loop, rtx *cinsn) if (CONSTANT_P (op[i])) continue; - insn = iv_get_reaching_def (at, op[i]); - if (!iv_analyze (insn, op[i], &iv)) + if (!iv_analyze (at, op[i], &iv)) return NULL_RTX; if (iv.step != const0_rtx || iv.first_special) -- cgit v1.2.1