[PATCH] D120909: [AMDGPU] Tweak predicates for image_bvh_intersect_ray instructions
Stanislav Mekhanoshin via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Mar 3 09:44:59 PST 2022
rampitec accepted this revision.
rampitec added a comment.
This revision is now accepted and ready to land.
Regardless if you decide to use both predicates or not this is LGTM.
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Comment at: llvm/lib/Target/AMDGPU/MIMGInstructions.td:1090
+let OtherPredicates = [HasGFX10_AEncoding] in {
defm IMAGE_BVH_INTERSECT_RAY : MIMG_IntersectRay<mimgopc<0xe6>, "image_bvh_intersect_ray", 0, 0>;
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foad wrote:
> Joe_Nash wrote:
> > Do you need to concatenate Predicates set in the enclosing scope? Isn't this overriding let OtherPredicates = [HasImageInsts] ?
> > That may not matter in practice if HasGFX10_AEncoding implies HasImageInsts
> Yes this relies on HasGFX10_AEncoding being a subset of HasImageInsts. The code just above was already doing this for HasExtendedImageInsts so I thought it was OK like that.
This is a list, so you could use both is that is a concern: [HasGFX10_AEncoding, HasImageInsts].
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D120909/new/
https://reviews.llvm.org/D120909
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