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Copy a CONST_INT rtx in force_const_mem

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From-SVN: r13490
This commit is contained in:
Ian Lance Taylor 1997-01-14 20:32:22 +00:00
parent 8839fca41b
commit c0560887e8
1 changed files with 14 additions and 8 deletions
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22
gcc/varasm.c
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@ -3407,19 +3407,25 @@ force_const_mem (mode, x)
pool_offset &= ~ (align - 1);
/* If RTL is not being placed into the saveable obstack, make a
copy of X that is in the saveable obstack in case we are being
called from combine or some other phase that discards memory
it allocates. We need only do this if it is a CONST, since
no other RTX should be allocated in this situation. */
copy of X that is in the saveable obstack in case we are
being called from combine or some other phase that discards
memory it allocates. We used to only do this if it is a
CONST; however, reload can allocate a CONST_INT when
eliminating registers. */
if (rtl_obstack != saveable_obstack
&& GET_CODE (x) == CONST)
&& (GET_CODE (x) == CONST || GET_CODE (x) == CONST_INT))
{
push_obstacks_nochange ();
rtl_in_saveable_obstack ();
x = gen_rtx (CONST, GET_MODE (x),
gen_rtx (PLUS, GET_MODE (x),
XEXP (XEXP (x, 0), 0), XEXP (XEXP (x, 0), 1)));
if (GET_CODE (x) == CONST)
x = gen_rtx (CONST, GET_MODE (x),
gen_rtx (PLUS, GET_MODE (x),
XEXP (XEXP (x, 0), 0),
XEXP (XEXP (x, 0), 1)));
else
x = GEN_INT (INTVAL (x));
pop_obstacks ();
}