tree b060ff7a6238af5b40f8f7a703a1b9f3e31fd282
parent 092b9781828558678164393b7e98405d6e60279e
author Miodrag Dinic <miodrag.dinic@imgtec.com> 1405590258 +0200
committer Miodrag Dinic <miodrag.dinic@imgtec.com> 1405607372 +0200

[MIPS64] target-mips : implement unaligned loads using TCG

original commit from QEMU ToT :

commit fc40787abcf8452b8f50d92b7a13243a12972c7a
Author: Aurelien Jarno <aurelien@aurel32.net>
Date:   Tue Oct 9 21:53:21 2012 +0200

target-mips: implement unaligned loads using TCG

Load/store from helpers should be avoided as they are quite
inefficient. Rewrite unaligned loads instructions using TCG and
aligned loads. The number of actual loads operations to implement
an unaligned load instruction is reduced from up to 8 to 1.

Note: As we can't rely on shift by 32 or 64 undefined behaviour,
the code loads already shift by one constants.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

Change-Id: I5d034506490ccd00b350f2eb9ecf86284ed7a15e