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| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-08-02 17:29:52 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-08-02 17:29:52 +0000 |
| commit | 5338d8ac98eb182a05c25fb0fa316427c7a63317 (patch) | |
| tree | 1f08df3ed5c909618d911eecffca578a7866695f /gcc/loop.c | |
| parent | 83e32a86ce5b5190303dafd4a0e4ccec84b73d23 (diff) | |
| download | gcc-5338d8ac98eb182a05c25fb0fa316427c7a63317.tar.gz | |
* loop.c (scan_loop): Ensure update_end label does not
go away until reg_scan_update is run.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@35428 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/loop.c')
| -rw-r--r-- | gcc/loop.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/loop.c b/gcc/loop.c index ea4a0271762..4903cec0e2d 100644 --- a/gcc/loop.c +++ b/gcc/loop.c @@ -1131,11 +1131,19 @@ scan_loop (loop, flags) if (flag_strength_reduce) { + if (update_end && GET_CODE (update_end) == CODE_LABEL) + /* Ensure our label doesn't go away. */ + LABEL_NUSES (update_end)++; + the_movables = movables; strength_reduce (loop, insn_count, flags); reg_scan_update (update_start, update_end, loop_max_reg); loop_max_reg = max_reg_num (); + + if (update_end && GET_CODE (update_end) == CODE_LABEL + && --LABEL_NUSES (update_end) == 0) + delete_insn (update_end); } VARRAY_FREE (reg_single_usage); |