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| author | Jeff Law <law@gcc.gnu.org> | 1993-04-27 14:33:32 -0600 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1993-04-27 14:33:32 -0600 |
| commit | c3b80729bb95b2137da7039f489c6de1092ed4ef (patch) | |
| tree | c6cbf26f6787d86f74485ebf1563ee9d7ed58bfc /gcc | |
| parent | 440954b521edef780df94889965552b81922869e (diff) | |
| download | gcc-c3b80729bb95b2137da7039f489c6de1092ed4ef.zip gcc-c3b80729bb95b2137da7039f489c6de1092ed4ef.tar.gz gcc-c3b80729bb95b2137da7039f489c6de1092ed4ef.tar.bz2 | |
reorg.c (dbr_schedule): Do not run the delay slot scheduling pass if...
* reorg.c (dbr_schedule): Do not run the delay slot
scheduling pass if the current function has no insns
other than the prologue and epilogue.
From-SVN: r4252
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/reorg.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/reorg.c b/gcc/reorg.c index 9948a91..e652225 100644 --- a/gcc/reorg.c +++ b/gcc/reorg.c @@ -3893,6 +3893,11 @@ dbr_schedule (first, file) flag_no_peephole = old_flag_no_peephole; #endif + /* If the current function has no insns other than the prologue and + epilogue, then do not try to fill any delay slots. */ + if (n_basic_blocks == 0) + return; + /* Find the highest INSN_UID and allocate and initialize our map from INSN_UID's to position in code. */ for (max_uid = 0, insn = first; insn; insn = NEXT_INSN (insn)) |