[PATCH] D156301: [AMDGPU] Support FAdd/FSub global atomics in AMDGPUAtomicOptimizer.

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added inline comments.


================
Comment at: llvm/lib/Target/AMDGPU/AMDGPUAtomicOptimizer.cpp:397
   for (unsigned Idx = 0; Idx < 4; Idx++) {
-    V = buildNonAtomicBinOp(
-        B, Op, V,
-        B.CreateCall(UpdateDPP,
-                     {Identity, V, B.getInt32(DPP::ROW_XMASK0 | 1 << Idx),
-                      B.getInt32(0xf), B.getInt32(0xf), B.getFalse()}));
+    V = B.CreateBitCast(V, IntNTy);
+    Value *UpdateDPPCall = B.CreateCall(
----------------
Do you want to switch to the float overloads for the DPP intrinsic here or in a follow up?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D156301/new/

https://reviews.llvm.org/D156301