On Mon, Jan 8, 2018 at 7:25 PM, Connor Abbott wrote:
> In order to reduce moves when coalescing multiple registers into a
> larger register, RA will try to coalesce MERGE instructions with their
> definitions. For example, for something like this in GLSL:
>
> uint a = ...;
> uint b = ...;
> uint64
In order to reduce moves when coalescing multiple registers into a
larger register, RA will try to coalesce MERGE instructions with their
definitions. For example, for something like this in GLSL:
uint a = ...;
uint b = ...;
uint64 x = packUint2x32(a, b);
The compiler will try to coalesce x with
