[PATCH] D63749: AMDGPU: Make amdgcn.s.get.waveid.in.workgroup inaccessiblememonly

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added a reviewer: rampitec.
Herald added subscribers: t-tye, tpr, dstuttard, yaxunl, nhaehnle, wdng, jvesely, kzhuravl.

This should probably be readnone, even though the instruction looks
like a load.


https://reviews.llvm.org/D63749

Files:
  include/llvm/IR/IntrinsicsAMDGPU.td


Index: include/llvm/IR/IntrinsicsAMDGPU.td
===================================================================
--- include/llvm/IR/IntrinsicsAMDGPU.td
+++ include/llvm/IR/IntrinsicsAMDGPU.td
@@ -1524,7 +1524,7 @@
 
 def int_amdgcn_s_get_waveid_in_workgroup :
   GCCBuiltin<"__builtin_amdgcn_s_get_waveid_in_workgroup">,
-  Intrinsic<[llvm_i32_ty], [], [IntrReadMem]>;
+  Intrinsic<[llvm_i32_ty], [], [IntrReadMem, IntrInaccessibleMemOnly]>;
 
 //===----------------------------------------------------------------------===//
 // Deep learning intrinsics.


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