diff options
Diffstat (limited to 'contrib/gcc/loop.c')
-rw-r--r-- | contrib/gcc/loop.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/contrib/gcc/loop.c b/contrib/gcc/loop.c index 8e6f9b5..284d891 100644 --- a/contrib/gcc/loop.c +++ b/contrib/gcc/loop.c @@ -7865,11 +7865,12 @@ loop_iv_add_mult_emit_before (loop, b, m, a, reg, before_bb, before_insn) update_reg_last_use (b, before_insn); update_reg_last_use (m, before_insn); - loop_insn_emit_before (loop, before_bb, before_insn, seq); - /* It is possible that the expansion created lots of new registers. - Iterate over the sequence we just created and record them all. */ + Iterate over the sequence we just created and record them all. We + must do this before inserting the sequence. */ loop_regs_update (loop, seq); + + loop_insn_emit_before (loop, before_bb, before_insn, seq); } @@ -7894,11 +7895,12 @@ loop_iv_add_mult_sink (loop, b, m, a, reg) update_reg_last_use (b, loop->sink); update_reg_last_use (m, loop->sink); - loop_insn_sink (loop, seq); - /* It is possible that the expansion created lots of new registers. - Iterate over the sequence we just created and record them all. */ + Iterate over the sequence we just created and record them all. We + must do this before inserting the sequence. */ loop_regs_update (loop, seq); + + loop_insn_sink (loop, seq); } @@ -7917,11 +7919,12 @@ loop_iv_add_mult_hoist (loop, b, m, a, reg) /* Use copy_rtx to prevent unexpected sharing of these rtx. */ seq = gen_add_mult (copy_rtx (b), copy_rtx (m), copy_rtx (a), reg); - loop_insn_hoist (loop, seq); - /* It is possible that the expansion created lots of new registers. - Iterate over the sequence we just created and record them all. */ + Iterate over the sequence we just created and record them all. We + must do this before inserting the sequence. */ loop_regs_update (loop, seq); + + loop_insn_hoist (loop, seq); } |