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| author | rakdver <rakdver@138bc75d-0d04-0410-961f-82ee72b054a4> | 2006-01-20 00:46:37 +0000 |
|---|---|---|
| committer | rakdver <rakdver@138bc75d-0d04-0410-961f-82ee72b054a4> | 2006-01-20 00:46:37 +0000 |
| commit | 3f37d4659f6f267e380af076f90439d7aceeea23 (patch) | |
| tree | f0310ff5933484ccfcb5cd7fb312fb89350141a1 /gcc/loop-unswitch.c | |
| parent | dc83e3a13b917c0c92e71dbe6a384cff18ae9ad6 (diff) | |
| download | gcc-3f37d4659f6f267e380af076f90439d7aceeea23.tar.gz | |
* 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
Diffstat (limited to 'gcc/loop-unswitch.c')
| -rw-r--r-- | gcc/loop-unswitch.c | 5 |
1 files changed, 2 insertions, 3 deletions
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) |