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pa.c (pa_output_move_double): Directly handle register indexed memory operand. 

* config/pa/pa.c (pa_output_move_double): Directly handle register
	indexed memory operand.  Simplify handling of scaled register indexed
	memory operands.

From-SVN: r221835
This commit is contained in:
John David Anglin 2015-04-02 11:29:48 +00:00
parent e61ffb3b5a
commit 166d826fdc
2 changed files with 28 additions and 21 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2015-04-02 John David Anglin <danglin@gcc.gnu.org>
* config/pa/pa.c (pa_output_move_double): Directly handle register
indexed memory operand. Simplify handling of scaled register indexed
memory operands.
2015-04-02 Ilya Enkovich <ilya.enkovich@intel.com>
PR driver/65444

43
gcc/config/pa/pa.c
View File

@ -2595,28 +2595,29 @@ pa_output_move_double (rtx *operands)
&& GET_CODE (XEXP (addr, 0)) == MULT)
{
rtx xoperands[4];
rtx high_reg = gen_rtx_SUBREG (SImode, operands[0], 0);
if (!reg_overlap_mentioned_p (high_reg, addr))
{
xoperands[0] = high_reg;
xoperands[1] = XEXP (addr, 1);
xoperands[2] = XEXP (XEXP (addr, 0), 0);
xoperands[3] = XEXP (XEXP (addr, 0), 1);
output_asm_insn ("{sh%O3addl %2,%1,%0|shladd,l %2,%O3,%1,%0}",
xoperands);
return "ldw 4(%0),%R0\n\tldw 0(%0),%0";
}
else
{
xoperands[0] = high_reg;
xoperands[1] = XEXP (addr, 1);
xoperands[2] = XEXP (XEXP (addr, 0), 0);
xoperands[3] = XEXP (XEXP (addr, 0), 1);
output_asm_insn ("{sh%O3addl %2,%1,%R0|shladd,l %2,%O3,%1,%R0}",
xoperands);
return "ldw 0(%R0),%0\n\tldw 4(%R0),%R0";
}
/* Load address into left half of destination register. */
xoperands[0] = gen_rtx_SUBREG (SImode, operands[0], 0);
xoperands[1] = XEXP (addr, 1);
xoperands[2] = XEXP (XEXP (addr, 0), 0);
xoperands[3] = XEXP (XEXP (addr, 0), 1);
output_asm_insn ("{sh%O3addl %2,%1,%0|shladd,l %2,%O3,%1,%0}",
xoperands);
return "ldw 4(%0),%R0\n\tldw 0(%0),%0";
}
else if (GET_CODE (addr) == PLUS
&& REG_P (XEXP (addr, 0))
&& REG_P (XEXP (addr, 1)))
{
rtx xoperands[3];
/* Load address into left half of destination register. */
xoperands[0] = gen_rtx_SUBREG (SImode, operands[0], 0);
xoperands[1] = XEXP (addr, 0);
xoperands[2] = XEXP (addr, 1);
output_asm_insn ("{addl|add,l} %1,%2,%0",
xoperands);
return "ldw 4(%0),%R0\n\tldw 0(%0),%0";
}
}