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expmed.c (expand_divmod): If compute_mode is not the same as mode... 

* expmed.c (expand_divmod): If compute_mode is not the same as
        mode, handle the case where convert_modes() causes op1 to no
        longer be a CONST_INT.

From-SVN: r15672
This commit is contained in:
David S. Miller 1997-09-23 07:25:25 +00:00 committed by Jeff Law
parent 4fd10464e7
commit e13a25d5a3
2 changed files with 12 additions and 0 deletions
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4
gcc/ChangeLog
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@ -1,5 +1,9 @@
Tue Sep 23 01:15:50 1997 David S. Miller <davem@tanya.rutgers.edu>
* expmed.c (expand_divmod): If compute_mode is not the same as
mode, handle the case where convert_modes() causes op1 to no
longer be a CONST_INT.
* reorg.c (dbr_schedule): At end of this pass, add REG_BR_PRED
note holding get_jump_flags() calculation to all JUMP_INSNs.
* rtl.h (enum reg_note): New note types REG_BR_PRED and REG_SAVE_AREA.

8
gcc/expmed.c
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@ -2831,6 +2831,14 @@ expand_divmod (rem_flag, code, mode, op0, op1, target, unsignedp)
{
op0 = convert_modes (compute_mode, mode, op0, unsignedp);
op1 = convert_modes (compute_mode, mode, op1, unsignedp);
/* convert_modes may have tossed op1 into a register, so we
absolutely must recompute the following. */
op1_is_constant = GET_CODE (op1) == CONST_INT;
op1_is_pow2 = (op1_is_constant
&& ((EXACT_POWER_OF_2_OR_ZERO_P (INTVAL (op1))
|| (! unsignedp
&& EXACT_POWER_OF_2_OR_ZERO_P (-INTVAL (op1))))));
}
/* If one of the operands is a volatile MEM, copy it into a register. */