Re: [Mesa-dev] [PATCH] i965/vec4: fix record clearing in copy propagation

On Tue, Apr 8, 2014 at 2:52 AM, Eric Anholt wrote: > Chia-I Wu writes: > >> From: Chia-I Wu >> >> Given >> >> mov vgrf7, vgrf9.xyxz >> add vgrf9.xyz, vgrf4.xyzw, vgrf5.xyzw >> add vgrf10.x, vgrf6.xyzw, vgrf7. >> >> the last instruction would be wrongly changed to >> >> add vgrf10.x,

Re: [Mesa-dev] [PATCH] i965/vec4: fix record clearing in copy propagation

Chia-I Wu writes: > From: Chia-I Wu > > Given > > mov vgrf7, vgrf9.xyxz > add vgrf9.xyz, vgrf4.xyzw, vgrf5.xyzw > add vgrf10.x, vgrf6.xyzw, vgrf7. > > the last instruction would be wrongly changed to > > add vgrf10.x, vgrf6.xyzw, vgrf9. > > during copy propagation. > > The issue

Re: [Mesa-dev] [PATCH] i965/vec4: fix record clearing in copy propagation

On 04/06/2014 09:31 PM, Chia-I Wu wrote: > From: Chia-I Wu > > Given > > mov vgrf7, vgrf9.xyxz > add vgrf9.xyz, vgrf4.xyzw, vgrf5.xyzw > add vgrf10.x, vgrf6.xyzw, vgrf7. > > the last instruction would be wrongly changed to > > add vgrf10.x, vgrf6.xyzw, vgrf9. > > during copy p

[Mesa-dev] [PATCH] i965/vec4: fix record clearing in copy propagation

From: Chia-I Wu Given mov vgrf7, vgrf9.xyxz add vgrf9.xyz, vgrf4.xyzw, vgrf5.xyzw add vgrf10.x, vgrf6.xyzw, vgrf7. the last instruction would be wrongly changed to add vgrf10.x, vgrf6.xyzw, vgrf9. during copy propagation. The issue is that when deciding if a record should be