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(emit_reload_insns): Add a case to handle 

SECONDARY_MEMORY_NEEDED in the SECONDARY_OUTPUT_RELOAD_CLASS code.

From-SVN: r2302
This commit is contained in:
Jim Wilson 1992-10-01 12:18:06 -07:00
parent ae51bd971e
commit 9ad5f9f604
1 changed files with 29 additions and 0 deletions
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29
gcc/reload1.c
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@ -5375,6 +5375,35 @@ emit_reload_insns (insn)
pat = (GEN_FCN (tertiary_icode)
(reloadreg, second_reloadreg, third_reloadreg));
}
#ifdef SECONDARY_MEMORY_NEEDED
/* If we need a memory location to do the move, do it that way. */
else if (GET_CODE (reloadreg) == REG
&& REGNO (reloadreg) < FIRST_PSEUDO_REGISTER
&& SECONDARY_MEMORY_NEEDED (REGNO_REG_CLASS (REGNO (reloadreg)),
REGNO_REG_CLASS (REGNO (second_reloadreg)),
GET_MODE (second_reloadreg)))
{
/* Get the memory to use and rewrite both registers
to its mode. */
rtx loc = get_secondary_mem (reloadreg,
GET_MODE (second_reloadreg));
rtx tmp_reloadreg;
if (GET_MODE (loc) != GET_MODE (second_reloadreg))
second_reloadreg = gen_rtx (REG, GET_MODE (loc),
REGNO (second_reloadreg));
if (GET_MODE (loc) != GET_MODE (reloadreg))
tmp_reloadreg = gen_rtx (REG, GET_MODE (loc),
REGNO (reloadreg));
else
tmp_reloadreg = reloadreg;
emit_insn_before (gen_move_insn (loc, second_reloadreg),
first_output_reload_insn);
pat = gen_move_insn (tmp_reloadreg, loc);
}
#endif
else
pat = gen_move_insn (reloadreg, second_reloadreg);