[clang] [clang-tools-extra] [llvm] [flang] [compiler-rt] [AMDGPU][GFX12] Add 16 bit atomic fadd instructions (PR #75917)

[Matt Arsenault via cfe-commits]

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@@ -1,56 +1,244 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
-; RUN: llc -march=amdgcn -mcpu=gfx1200 -verify-machineinstrs < %s | FileCheck -check-prefix=GFX12 %s
-; RUN: llc -march=amdgcn -global-isel=1 -mcpu=gfx1200 -verify-machineinstrs < %s | FileCheck -check-prefix=GFX12 %s
+; RUN: llc -march=amdgcn -mcpu=gfx1200 -verify-machineinstrs < %s | FileCheck -check-prefix=GFX12-SDAG %s
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arsenm wrote:

Use an explicit -global-isel=0 for the dag line 

https://github.com/llvm/llvm-project/pull/75917