diff options
| author | Kenneth Zadeck <zadeck@gcc.gnu.org> | 2008-03-06 00:21:34 +0000 |
|---|---|---|
| committer | Kenneth Zadeck <zadeck@gcc.gnu.org> | 2008-03-06 00:21:34 +0000 |
| commit | ca9052ce17c72129b59e1e17d790a3e08737f82e (patch) | |
| tree | 81a4fa5e0fbdeae7d436872de34208dd812b0bd9 /gcc/fwprop.c | |
| parent | 256fe3d795af429bc68d6f9d94c6c3e871a69736 (diff) | |
| download | gcc-ca9052ce17c72129b59e1e17d790a3e08737f82e.zip gcc-ca9052ce17c72129b59e1e17d790a3e08737f82e.tar.gz gcc-ca9052ce17c72129b59e1e17d790a3e08737f82e.tar.bz2 | |
fwprop.c (update_df): Support width and offset parameters of df_ref_create.
2008-03-05 Kenneth Zadeck <zadeck@naturalbridge.com>
* fwprop.c (update_df): Support width and offset parameters of
df_ref_create.
* ra-conflict.c (mark_reg_store, clear_reg_in_live,
global_conflicts): Change DF_REF_EXTRACT to either
DF_REF_ZERO_EXTRACT or DF_REF_SIGN_EXTRACT. Change
DF_REF_STRICT_LOWER_PART to DF_REF_STRICT_LOW_PART.
* df-scan.c (df_ref_record, df_defs_record,
df_ref_create_structure, df_def_record_1, df_uses_record,
df_get_conditional_uses, df_get_call_refs, df_insn_refs_collect,
df_bb_refs_collect, df_entry_block_defs_collect,
df_exit_block_uses_collect): Support new width and offset fields.
(ref_extract_pool): New storage pool.
(df_free_ref): New function.
(df_reg_chain_unlink, df_free_collection_rec,
df_sort_and_compress_refs): Call df_free_ref.
(df_ref_equal_p, df_ref_compare): Compare offset and width fields
of df_ref_extract.
(df_ref_create_structure): Allocate df_ref_extract if offset and
width fields are used.
(df_def_record_1): Get offset and width from ZERO_EXTRACT.
(df_uses_record): Get offset and width from ZERO_EXTRACT
and SIGN_EXTRACT.
* global.c (build_insn_chain): Change DF_REF_EXTRACT to either
DF_REF_ZERO_EXTRACT or DF_REF_SIGN_EXTRACT. Change
DF_REF_STRICT_LOWER_PART to DF_REF_STRICT_LOW_PART.
* df.h (df_ref_flags): Change DF_REF_EXTRACT to either
DF_REF_ZERO_EXTRACT or DF_REF_SIGN_EXTRACT. Change
DF_REF_STRICT_LOWER_PART to DF_REF_STRICT_LOW_PART.
(df_ref_extract): New structure.
(DF_REF_WIDTH, DF_REF_OFFSET): New macros.
(df_ref_create): Add width and offset parameters.
From-SVN: r132962
Diffstat (limited to 'gcc/fwprop.c')
| -rw-r--r-- | gcc/fwprop.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/gcc/fwprop.c b/gcc/fwprop.c index 1e03272..089c571 100644 --- a/gcc/fwprop.c +++ b/gcc/fwprop.c @@ -642,17 +642,25 @@ update_df (rtx insn, rtx *loc, struct df_ref **use_rec, enum df_ref_type type, { struct df_ref *use = *use_rec; struct df_ref *orig_use = use, *new_use; + int width = -1; + int offset = -1; rtx *new_loc = find_occurrence (loc, DF_REF_REG (orig_use)); use_rec++; if (!new_loc) continue; + if (DF_REF_FLAGS_IS_SET (orig_use, DF_REF_SIGN_EXTRACT | DF_REF_ZERO_EXTRACT)) + { + width = DF_REF_WIDTH (orig_use); + offset = DF_REF_OFFSET (orig_use); + } + /* Add a new insn use. Use the original type, because it says if the use was within a MEM. */ new_use = df_ref_create (DF_REF_REG (orig_use), new_loc, insn, BLOCK_FOR_INSN (insn), - type, DF_REF_FLAGS (orig_use) | new_flags); + type, DF_REF_FLAGS (orig_use) | new_flags, width, offset); /* Set up the use-def chain. */ df_chain_copy (new_use, DF_REF_CHAIN (orig_use)); |