Patches 1 - 4 are
Reviewed-by: Ian Romanick
Patch 5 probably is too, but I have a question or two.
On 02/22/2016 04:13 PM, Matt Turner wrote:
> It's not correct to CSE these multiplies
>
>mul.sat dst1, -a, b
>mul.sat dst2, a, b
>
> by emitting a negated MOV from dst1 to dst2:
>
>
It's not correct to CSE these multiplies
mul.sat dst1, -a, b
mul.sat dst2, a, b
by emitting a negated MOV from dst1 to dst2:
mul.sat dst1, -a, b
mov dst2, -dst1
Take 2.0*2.0 for example. The first multiply would produce 0.0 and the
second would produce 1.0.
Fixes bad generated
