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reload1.c (emit_reload_insns): Handle a secondary input reload which needs to use secondary memory too.

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* reload1.c (emit_reload_insns): Handle a secondary input reload
        which needs to use secondary memory too.

From-SVN: r7912
This commit is contained in:
Jeff Law 1994-08-13 11:51:15 -06:00
parent 336d6f0a7e
commit cf19d2a9d8
1 changed files with 44 additions and 2 deletions
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46
gcc/reload1.c
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@ -6001,8 +6001,50 @@ emit_reload_insns (insn)
{
if (icode != CODE_FOR_nothing)
{
emit_insn (GEN_FCN (icode) (reloadreg, real_oldequiv,
second_reload_reg));
rtx pat;
#ifdef SECONDARY_MEMORY_NEEDED
/* If we need a memory location to do the move, do
it that way. */
if (GET_CODE (real_oldequiv) == REG
&& REGNO (real_oldequiv) < FIRST_PSEUDO_REGISTER
&& SECONDARY_MEMORY_NEEDED
(REGNO_REG_CLASS (REGNO (real_oldequiv)),
REGNO_REG_CLASS (REGNO (second_reload_reg)),
GET_MODE (second_reload_reg)))
{
/* Get the memory to use and rewrite both
registers to its mode. */
rtx loc
= get_secondary_mem (real_oldequiv,
GET_MODE (second_reload_reg),
reload_opnum[j],
reload_when_needed[j]);
rtx tmp_reloadreg;
if (GET_MODE (loc)
!= GET_MODE (second_reload_reg))
second_reload_reg
= gen_rtx (REG,
GET_MODE (loc),
REGNO (second_reload_reg));
if (GET_MODE (loc) != GET_MODE (real_oldequiv))
tmp_reloadreg = gen_rtx (REG, GET_MODE (loc),
REGNO (real_oldequiv));
else
tmp_reloadreg = real_oldequiv;
emit_move_insn (loc, tmp_reloadreg);
emit_move_insn (second_reload_reg, loc);
pat = gen_move_insn (reloadreg, second_reload_reg);
}
else
#endif
pat = GEN_FCN (icode) (reloadreg,
real_oldequiv,
second_reload_reg);
emit_insn (pat);
special = 1;
}
else