[PATCH] D67767: [AMDGPU] Add llvm.amdgcn.wqm.demote intrinsic and live mask tracking

[Jay Foad via Phabricator via llvm-commits]

foad added inline comments.


================
Comment at: llvm/lib/Target/AMDGPU/SIInstructions.td:424
+}
+} // End Defs = [EXEC]
+} // End Uses = [EXEC]
----------------
EXEC,SCC


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Comment at: llvm/test/CodeGen/AMDGPU/atomic_optimizations_pixelshader.ll:210-211
 ; GFX8:       ; %bb.0: ; %entry
-; GFX8-NEXT:    s_mov_b64 s[10:11], exec
+; GFX8-NEXT:    s_mov_b64 s[8:9], exec
+; GFX8-NEXT:    s_mov_b64 s[10:11], s[8:9]
 ; GFX8-NEXT:    v_mov_b32_e32 v2, v0
----------------
Why the extra move here?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D67767/new/

https://reviews.llvm.org/D67767