[llvm] [NVPTX] Add support for atomic add for f16 type (PR #84295)

[Artem Belevich via llvm-commits]

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@@ -1630,6 +1630,13 @@ defm INT_PTX_ATOM_ADD_GEN_64 : F_ATOMIC_2<i64, Int64Regs, "", ".u64", ".add",
 defm INT_PTX_ATOM_ADD_GEN_64_USE_G : F_ATOMIC_2<i64, Int64Regs, ".global", ".u64",
   ".add", atomic_load_add_64_gen, i64imm, imm>;
 
+defm INT_PTX_ATOM_ADD_G_F16 : F_ATOMIC_2<f16, Int16Regs, ".global", ".f16", ".add.noftz",
+  atomic_load_add_g, f16imm, fpimm, [hasSM<70>]>;
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Artem-B wrote:

Needs `hasPTX<63>` here, too.

https://github.com/llvm/llvm-project/pull/84295