diff options
Diffstat (limited to 'contrib/gcc/loop.c')
| -rw-r--r-- | contrib/gcc/loop.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/contrib/gcc/loop.c b/contrib/gcc/loop.c index 7ee92e143a69..a5c50529d813 100644 --- a/contrib/gcc/loop.c +++ b/contrib/gcc/loop.c @@ -5998,6 +5998,8 @@ basic_induction_var (x, mode, dest_reg, p, inc_val, mult_val, location) || (GET_CODE (SET_DEST (set)) == SUBREG && (GET_MODE_SIZE (GET_MODE (SET_DEST (set))) <= UNITS_PER_WORD) + && (GET_MODE_CLASS (GET_MODE (SET_DEST (set))) + == MODE_INT) && SUBREG_REG (SET_DEST (set)) == x)) && basic_induction_var (SET_SRC (set), (GET_MODE (SET_SRC (set)) == VOIDmode @@ -7696,6 +7698,7 @@ check_dbra_loop (loop_end, insn_count, loop_start, loop_info) for (bl = loop_iv_list; bl; bl = bl->next) { if (bl->biv_count == 1 + && ! bl->biv->maybe_multiple && bl->biv->dest_reg == XEXP (comparison, 0) && ! reg_used_between_p (regno_reg_rtx[bl->regno], bl->biv->insn, first_compare)) @@ -7761,7 +7764,8 @@ check_dbra_loop (loop_end, insn_count, loop_start, loop_info) } } } - else if (INTVAL (bl->biv->add_val) > 0) + else if (GET_CODE (bl->biv->add_val) == CONST_INT + && INTVAL (bl->biv->add_val) > 0) { /* Try to change inc to dec, so can apply above optimization. */ /* Can do this if: @@ -9551,6 +9555,10 @@ load_mems (scan_start, end, loop_top, start) mem_list_entry = XEXP (mem_list_entry, 1); } + if (flag_float_store && written + && GET_MODE_CLASS (GET_MODE (mem)) == MODE_FLOAT) + loop_mems[i].optimize = 0; + /* If this MEM is written to, we must be sure that there are no reads from another MEM that aliases this one. */ if (loop_mems[i].optimize && written) |