James Greenhalgh wrote:
> I really don't like [1][2][3] this technique of attempting to work around
> register allocator issues using the disparaging mechanisms.
I don't see the issue as it is a standard mechanism to describe higher cost
to the register allocator. On the other had the use of '*'
On Fri, Apr 22, 2016 at 03:35:42PM +, Wilco Dijkstra wrote:
> SIMD operations like combine prefer to have their operands in FP registers,
> so increase the cost of integer registers slightly to avoid unnecessary
> int<->FP moves. This improves register allocation of scalar SIMD operations.
I
ping
From: Wilco Dijkstra
Sent: 22 April 2016 16:35
To: gcc-patches@gcc.gnu.org
Cc: nd
Subject: [PATCH][AArch64] Adjust SIMD integer preference
SIMD operations like combine prefer to have their operands in FP registers,
so increase the cost of integer
On 04/22/16 10:35, Wilco Dijkstra wrote:
OK for trunk?
LGTM
--
Evandro Menezes
SIMD operations like combine prefer to have their operands in FP registers,
so increase the cost of integer registers slightly to avoid unnecessary int<->FP
moves. This improves register allocation of scalar SIMD operations.
OK for trunk?
ChangeLog:
2016-04-22 Wilco Dijkstra