[PATCH] D123693: Transform illegal intrinsics to V_ILLEGAL

Leon Clark via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Fri Aug 5 06:58:34 PDT 2022


Leonc added inline comments.


================
Comment at: llvm/test/CodeGen/AMDGPU/v_illegal-atomics.ll:40
+; GFX906-OBJ:      s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX906-OBJ-NEXT: v_illegal // 000000000004: FFFFFFFF
+
----------------
arsenm wrote:
> This looks backwards. gfx10 is getting the -1 encoding and gfx9 is getting 0
Are you sure gfx9 is getting the zero encoding? I thought this line was "address: encoding".
If this was wrong wouldn't the tests in `v_illegal-atomics.s` also be wrong?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D123693/new/

https://reviews.llvm.org/D123693



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