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| author | Jan Hubicka <jh@suse.cz> | 2002-07-23 14:08:10 +0200 |
|---|---|---|
| committer | Gerald Pfeifer <gerald@gcc.gnu.org> | 2002-07-23 12:08:10 +0000 |
| commit | 2b773ee2c1954b982aac0ee71fd6e5ae148e4691 (patch) | |
| tree | 6ad4354996bd2595d502fa3e71a030e6cfb95ec4 | |
| parent | a0dc500c860478e0917fd98ad618ec65482fe395 (diff) | |
| download | gcc-2b773ee2c1954b982aac0ee71fd6e5ae148e4691.zip gcc-2b773ee2c1954b982aac0ee71fd6e5ae148e4691.tar.gz gcc-2b773ee2c1954b982aac0ee71fd6e5ae148e4691.tar.bz2 | |
gcse.c (try_replace_reg): Use num_changes_pending.
2002-07-23 Jan Hubicka <jh@suse.cz>
* gcse.c (try_replace_reg): Use num_changes_pending.
* recog.c (num_changes_pending): New function.
(validate_replace_src): Use validate_repalce_src_group.
(validate_replace_src_group): New.
* recog.h (validate_repalce_src_group): New.
(num_changes_pending): Likewise.
From-SVN: r55677
| -rw-r--r-- | gcc/ChangeLog | 9 | ||||
| -rw-r--r-- | gcc/gcse.c | 7 | ||||
| -rw-r--r-- | gcc/recog.c | 23 | ||||
| -rw-r--r-- | gcc/recog.h | 2 |
4 files changed, 33 insertions, 8 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3805919..b661633 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,12 @@ +2002-07-23 Jan Hubicka <jh@suse.cz> + + * gcse.c (try_replace_reg): Use num_changes_pending. + * recog.c (num_changes_pending): New function. + (validate_replace_src): Use validate_repalce_src_group. + (validate_replace_src_group): New. + * recog.h (validate_repalce_src_group): New. + (num_changes_pending): Likewise. + Tue Jul 23 12:16:58 2002 J"orn Rennecke <joern.rennecke@superh.com> * calls.c (emit_library_call_value_1): If @@ -3977,10 +3977,9 @@ try_replace_reg (from, to, insn) int success = 0; rtx set = single_set (insn); - if (reg_mentioned_p (from, PATTERN (insn))) - { - success = validate_replace_src (from, to, insn); - } + validate_replace_src_group (from, to, insn); + if (num_changes_pending () && apply_change_group ()) + success = 1; if (!success && set && reg_mentioned_p (from, SET_SRC (set))) { diff --git a/gcc/recog.c b/gcc/recog.c index 5b5d3dc..3769249 100644 --- a/gcc/recog.c +++ b/gcc/recog.c @@ -308,6 +308,13 @@ insn_invalid_p (insn) return 0; } +/* Return number of changes made and not validated yet. */ +int +num_changes_pending () +{ + return num_changes; +} + /* Apply a group of changes previously issued with `validate_change'. Return 1 if all changes are valid, zero otherwise. */ @@ -671,11 +678,10 @@ validate_replace_src_1 (x, data) } /* Try replacing every occurrence of FROM in INSN with TO, avoiding - SET_DESTs. After all changes have been made, validate by seeing if - INSN is still valid. */ + SET_DESTs. */ -int -validate_replace_src (from, to, insn) +void +validate_replace_src_group (from, to, insn) rtx from, to, insn; { struct validate_replace_src_data d; @@ -684,6 +690,15 @@ validate_replace_src (from, to, insn) d.to = to; d.insn = insn; note_uses (&PATTERN (insn), validate_replace_src_1, &d); +} + +/* Same as validate_repalace_src_group, but validate by seeing if + INSN is still valid. */ +int +validate_replace_src (from, to, insn) + rtx from, to, insn; +{ + validate_replace_src_group (from, to, insn); return apply_change_group (); } diff --git a/gcc/recog.h b/gcc/recog.h index 4d47440..86af35f 100644 --- a/gcc/recog.h +++ b/gcc/recog.h @@ -89,6 +89,8 @@ extern int validate_replace_rtx_subexp PARAMS ((rtx, rtx, rtx, rtx *)); extern int validate_replace_rtx PARAMS ((rtx, rtx, rtx)); extern void validate_replace_rtx_group PARAMS ((rtx, rtx, rtx)); extern int validate_replace_src PARAMS ((rtx, rtx, rtx)); +extern void validate_replace_src_group PARAMS ((rtx, rtx, rtx)); +extern int num_changes_pending PARAMS ((void)); #ifdef HAVE_cc0 extern int next_insn_tests_no_inequality PARAMS ((rtx)); #endif |