diff options
| author | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 1998-05-05 00:15:50 +0000 |
|---|---|---|
| committer | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 1998-05-05 00:15:50 +0000 |
| commit | 60d599be700f3b8079fe5d157a4592b63c944e4d (patch) | |
| tree | f8b7943c8b025bf8bdbde096bb589f4a986f0c92 /gcc | |
| parent | 3ad08967493a99cf39df801d5c3a8c27e12b4398 (diff) | |
| download | gcc-60d599be700f3b8079fe5d157a4592b63c944e4d.tar.gz | |
* reorg.c (fill_slots_from_thread): Update REG_DEAD/REG_UNUSED notes
for any insns skipped at the start of a block because they were
redundant.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@19534 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/reorg.c | 12 |
2 files changed, 16 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 7e04af59406..0b36736c7c8 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +Tue May 5 01:15:06 1998 Jeffrey A Law (law@cygnus.com) + + * reorg.c (fill_slots_from_thread): Update REG_DEAD/REG_UNUSED notes + for any insns skipped at the start of a block because they were + redundant. + Mon May 4 20:23:51 1998 Jim Wilson <wilson@cygnus.com> * alpha.h (DBX_CONTIN_LENGTH): Decrease to 3000. diff --git a/gcc/reorg.c b/gcc/reorg.c index 68486b0ffec..4cea552d7cf 100644 --- a/gcc/reorg.c +++ b/gcc/reorg.c @@ -3665,8 +3665,16 @@ fill_slots_from_thread (insn, condition, thread, opposite_thread, likely, && ! insn_sets_resource_p (new_thread, &needed, 1) && ! insn_references_resource_p (new_thread, &set, 1) - && redundant_insn (new_thread, insn, delay_list)) - new_thread = next_active_insn (new_thread); + && (prior_insn + = redundant_insn (new_thread, insn, + delay_list))) + { + /* We know we do not own the thread, so no need + to call update_block and delete_insn. */ + fix_reg_dead_note (prior_insn, insn); + update_reg_unused_notes (prior_insn, new_thread); + new_thread = next_active_insn (new_thread); + } break; } |