diff options
| author | zadeck <zadeck@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-09-05 13:23:32 +0000 |
|---|---|---|
| committer | zadeck <zadeck@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-09-05 13:23:32 +0000 |
| commit | b45b55a5bb10842387fc91e2d4adc3872999bfd8 (patch) | |
| tree | 6e0191f285ef391455b267bddc687c2d26c616ca /gcc/regrename.c | |
| parent | fec2d2141d54d2bf1dccfb62292aaa269b66a98e (diff) | |
| download | gcc-b45b55a5bb10842387fc91e2d4adc3872999bfd8.tar.gz | |
2007-09-05 Kenneth Zadeck <zadeck@naturalbridge.com>
* regrename.c (rerename_optimize): Use deferred rescanning and
insert explicit calls to rescan insns when changed.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@128129 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/regrename.c')
| -rw-r--r-- | gcc/regrename.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/gcc/regrename.c b/gcc/regrename.c index a25319e2339..a15d675f4c5 100644 --- a/gcc/regrename.c +++ b/gcc/regrename.c @@ -184,8 +184,8 @@ regrename_optimize (void) df_set_flags (DF_LR_RUN_DCE); df_note_add_problem (); df_analyze (); - df_set_flags (DF_NO_INSN_RESCAN); - + df_set_flags (DF_DEFER_INSN_RESCAN); + memset (tick, 0, sizeof tick); gcc_obstack_init (&rename_obstack); @@ -345,8 +345,6 @@ regrename_optimize (void) } obstack_free (&rename_obstack, NULL); - df_clear_flags (DF_NO_INSN_RESCAN); - df_insn_rescan_all (); if (dump_file) fputc ('\n', dump_file); @@ -364,6 +362,7 @@ do_replace (struct du_chain *chain, int reg) if (regno >= FIRST_PSEUDO_REGISTER) ORIGINAL_REGNO (*chain->loc) = regno; REG_ATTRS (*chain->loc) = attr; + df_insn_rescan (chain->insn); chain = chain->next_use; } } @@ -815,9 +814,11 @@ build_def_use (basic_block bb) OP_IN, 0); for (i = 0; i < recog_data.n_dups; i++) - *recog_data.dup_loc[i] = old_dups[i]; + *recog_data.dup_loc[i] = copy_rtx (old_dups[i]); for (i = 0; i < n_ops; i++) *recog_data.operand_loc[i] = old_operands[i]; + if (recog_data.n_dups) + df_insn_rescan (insn); /* Step 2B: Can't rename function call argument registers. */ if (CALL_P (insn) && CALL_INSN_FUNCTION_USAGE (insn)) |