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[AArch64 costs 6/18] Set default costs and handle vector modes. 

gcc/

	* config/aarch64/aarch64.c (aarch64_rtx_costs): Set default costs.

From-SVN: r210498
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James Greenhalgh 2014-05-16 08:52:30 +00:00 committed by James Greenhalgh
parent 4745e70151
commit 7fc5ef02f4
2 changed files with 19 additions and 0 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2014-05-16 James Greenhalgh <james.greenhalgh@arm.com>
* config/aarch64/aarch64.c (aarch64_rtx_costs): Set default costs.
2014-05-16 James Greenhalgh <james.greenhalgh@arm.com>
Philipp Tomsich <philipp.tomsich@theobroma-systems.com>

15
gcc/config/aarch64/aarch64.c
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@ -4843,6 +4843,21 @@ aarch64_rtx_costs (rtx x, int code, int outer ATTRIBUTE_UNUSED,
= aarch64_tune_params->insn_extra_cost;
enum machine_mode mode = GET_MODE (x);
/* By default, assume that everything has equivalent cost to the
cheapest instruction. Any additional costs are applied as a delta
above this default. */
*cost = COSTS_N_INSNS (1);
/* TODO: The cost infrastructure currently does not handle
vector operations. Assume that all vector operations
are equally expensive. */
if (VECTOR_MODE_P (mode))
{
if (speed)
*cost += extra_cost->vect.alu;
return true;
}
switch (code)
{
case SET: