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backport: avr.c (avr_rtx_costs_1): Handle DImode MULT. 

Backport from 2016-09-22 trunk r240388.

2016-09-22  Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>

	* config/avr/avr.c (avr_rtx_costs_1): Handle DImode MULT.
	(avr_address_cost): Replace 61 with MAX_LD_OFFSET(mode).

From-SVN: r240397
This commit is contained in:
Senthil Kumar Selvaraj 2016-09-23 08:20:40 +00:00 committed by Senthil Kumar Selvaraj
parent 6b934f5732
commit 02a8e3a0a2
2 changed files with 15 additions and 2 deletions
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7
gcc/ChangeLog
View File

@ -1,3 +1,10 @@
2016-09-22 Senthil Kumar Selvaraj <senthil_kumar.selvaraj@atmel.com>
Backport from 2016-09-22 trunk r240388.
* config/avr/avr.c (avr_rtx_costs_1): Handle DImode MULT.
(avr_address_cost): Replace 61 with MAX_LD_OFFSET(mode).
2016-09-21 Segher Boessenkool <segher@kernel.crashing.org>
* doc/rtl.texi (JUMP_LABEL): Document RETURN and SIMPLE_RETURN values.

10
gcc/config/avr/avr.c
View File

@ -9122,6 +9122,8 @@ avr_eval_addr_attrib (rtx x)
if (SYMBOL_REF_FLAGS (x) & SYMBOL_FLAG_IO)
{
attr = lookup_attribute ("io", DECL_ATTRIBUTES (decl));
if (!attr || !TREE_VALUE (attr))
attr = lookup_attribute ("io_low", DECL_ATTRIBUTES (decl));
gcc_assert (attr);
}
if (!attr || !TREE_VALUE (attr))
@ -10235,6 +10237,7 @@ avr_rtx_costs_1 (rtx x, int codearg, int outer_code ATTRIBUTE_UNUSED,
break;
case SImode:
case DImode:
if (AVR_HAVE_MUL)
{
if (!speed)
@ -10260,7 +10263,10 @@ avr_rtx_costs_1 (rtx x, int codearg, int outer_code ATTRIBUTE_UNUSED,
*total = COSTS_N_INSNS (AVR_HAVE_JMP_CALL ? 5 : 4);
}
return true;
if (mode == DImode)
*total *= 2;
return true;
default:
return false;
@ -10837,7 +10843,7 @@ avr_address_cost (rtx x, machine_mode mode ATTRIBUTE_UNUSED,
&& (REG_P (XEXP (x, 0))
|| GET_CODE (XEXP (x, 0)) == SUBREG))
{
if (INTVAL (XEXP (x, 1)) >= 61)
if (INTVAL (XEXP (x, 1)) > MAX_LD_OFFSET(mode))
cost = 18;
}
else if (CONSTANT_ADDRESS_P (x))