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(find_reloads): Recompute reg_equiv_address from reg_equiv_memory_loc before using it. 

(find_reloads): Recompute reg_equiv_address from
reg_equiv_memory_loc before using it.
(find_reloads_toplev, make_memloc): Likewise.

From-SVN: r9395
This commit is contained in:
Jim Wilson 1995-04-17 12:46:50 -07:00
parent 79c0672ee6
commit 4ffeab028f
1 changed files with 19 additions and 5 deletions
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24
gcc/reload.c
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@ -2463,7 +2463,11 @@ find_reloads (insn, replace, ind_levels, live_known, reload_reg_p)
{
/* If reg_equiv_address is not a constant address, copy it,
since it may be shared. */
rtx address = reg_equiv_address[regno];
/* We must rerun eliminate_regs, in case the elimination
offsets have changed. */
rtx address = XEXP (eliminate_regs (reg_equiv_memory_loc[regno],
0, NULL_RTX),
0);
if (rtx_varies_p (address))
address = copy_rtx (address);
@ -3880,7 +3884,11 @@ find_reloads_toplev (x, opnum, type, ind_levels, is_set_dest)
else if (reg_equiv_address[regno] != 0)
{
/* If reg_equiv_address varies, it may be shared, so copy it. */
rtx addr = reg_equiv_address[regno];
/* We must rerun eliminate_regs, in case the elimination
offsets have changed. */
rtx addr = XEXP (eliminate_regs (reg_equiv_memory_loc[regno], 0,
NULL_RTX),
0);
if (rtx_varies_p (addr))
addr = copy_rtx (addr);
@ -3960,8 +3968,11 @@ find_reloads_toplev (x, opnum, type, ind_levels, is_set_dest)
|| ! offsettable_memref_p (reg_equiv_mem[regno])))))
{
int offset = SUBREG_WORD (x) * UNITS_PER_WORD;
rtx addr = (reg_equiv_address[regno] ? reg_equiv_address[regno]
: XEXP (reg_equiv_mem[regno], 0));
/* We must rerun eliminate_regs, in case the elimination
offsets have changed. */
rtx addr = XEXP (eliminate_regs (reg_equiv_memory_loc[regno], 0,
NULL_RTX),
0);
if (BYTES_BIG_ENDIAN)
{
int size;
@ -3998,7 +4009,10 @@ make_memloc (ad, regno)
int regno;
{
register int i;
rtx tem = reg_equiv_address[regno];
/* We must rerun eliminate_regs, in case the elimination
offsets have changed. */
rtx tem = XEXP (eliminate_regs (reg_equiv_memory_loc[regno], 0, NULL_RTX),
0);
#if 0 /* We cannot safely reuse a memloc made here;
if the pseudo appears twice, and its mem needs a reload,