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* expr.c (store_expr): Promote all MEM intermediates to regs.

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From-SVN: r62173
This commit is contained in:
Richard Henderson 2003-01-30 22:53:07 -08:00
parent cdd1f01b22
commit 7abec5bec9
1 changed files with 6 additions and 6 deletions
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12
gcc/expr.c
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@ -4398,12 +4398,12 @@ store_expr (exp, target, want_value)
temp = expand_expr (exp, inner_target, VOIDmode, 0);
/* If TEMP is a volatile MEM and we want a result value, make
the access now so it gets done only once. Likewise if
it contains TARGET. */
if (GET_CODE (temp) == MEM && want_value
&& (MEM_VOLATILE_P (temp)
|| reg_mentioned_p (SUBREG_REG (target), XEXP (temp, 0))))
/* If TEMP is a MEM and we want a result value, make the access
now so it gets done only once. Strictly speaking, this is
only necessary if the MEM is volatile, or if the address
overlaps TARGET. But not performing the load twice also
reduces the amount of rtl we generate and then have to CSE. */
if (GET_CODE (temp) == MEM && want_value)
temp = copy_to_reg (temp);
/* If TEMP is a VOIDmode constant, use convert_modes to make