[clang] [AMDGPU] Add sema check for global_atomic_fadd_v2f16 builtin (PR #158145)

[Tim Gu via cfe-commits]

https://github.com/tcgu-amd updated https://github.com/llvm/llvm-project/pull/158145

>From 2790a7a05ab9453176a29ce7f5c3def7e4c9a1ae Mon Sep 17 00:00:00 2001
From: Tim Gu <Tim.Gu at amd.com>
Date: Thu, 18 Sep 2025 13:03:11 -0400
Subject: [PATCH] Removed custom type checking & changed type string from
 __fp16 to _Float16

---
 clang/include/clang/Basic/BuiltinsAMDGPU.def | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/clang/include/clang/Basic/BuiltinsAMDGPU.def b/clang/include/clang/Basic/BuiltinsAMDGPU.def
index fda16e42d2c6b..4271bd2d55618 100644
--- a/clang/include/clang/Basic/BuiltinsAMDGPU.def
+++ b/clang/include/clang/Basic/BuiltinsAMDGPU.def
@@ -268,7 +268,7 @@ TARGET_BUILTIN(__builtin_amdgcn_fmed3h, "hhhh", "nc", "gfx9-insts")
 
 TARGET_BUILTIN(__builtin_amdgcn_global_atomic_fadd_f64, "dd*1d", "t", "gfx90a-insts")
 TARGET_BUILTIN(__builtin_amdgcn_global_atomic_fadd_f32, "ff*1f", "t", "atomic-fadd-rtn-insts")
-TARGET_BUILTIN(__builtin_amdgcn_global_atomic_fadd_v2f16, "V2hV2h*1V2h", "t", "atomic-buffer-global-pk-add-f16-insts")
+TARGET_BUILTIN(__builtin_amdgcn_global_atomic_fadd_v2f16, "V2xV2x*1V2x", "n", "atomic-buffer-global-pk-add-f16-insts")
 TARGET_BUILTIN(__builtin_amdgcn_global_atomic_fmin_f64, "dd*1d", "t", "gfx90a-insts")
 TARGET_BUILTIN(__builtin_amdgcn_global_atomic_fmax_f64, "dd*1d", "t", "gfx90a-insts")
 
@@ -280,11 +280,11 @@ TARGET_BUILTIN(__builtin_amdgcn_ds_atomic_fadd_f64, "dd*3d", "t", "gfx90a-insts"
 TARGET_BUILTIN(__builtin_amdgcn_ds_atomic_fadd_f32, "ff*3f", "t", "gfx8-insts")
 
 TARGET_BUILTIN(__builtin_amdgcn_flat_atomic_fadd_f32, "ff*0f", "t", "gfx940-insts")
-TARGET_BUILTIN(__builtin_amdgcn_flat_atomic_fadd_v2f16, "V2hV2h*0V2h", "t", "atomic-flat-pk-add-16-insts")
+TARGET_BUILTIN(__builtin_amdgcn_flat_atomic_fadd_v2f16, "V2xV2x*0V2x", "n", "atomic-flat-pk-add-16-insts")
 TARGET_BUILTIN(__builtin_amdgcn_flat_atomic_fadd_v2bf16, "V2sV2s*0V2s", "t", "atomic-flat-pk-add-16-insts")
 TARGET_BUILTIN(__builtin_amdgcn_global_atomic_fadd_v2bf16, "V2sV2s*1V2s", "t", "atomic-global-pk-add-bf16-inst")
 TARGET_BUILTIN(__builtin_amdgcn_ds_atomic_fadd_v2bf16, "V2sV2s*3V2s", "t", "atomic-ds-pk-add-16-insts")
-TARGET_BUILTIN(__builtin_amdgcn_ds_atomic_fadd_v2f16, "V2hV2h*3V2h", "t", "atomic-ds-pk-add-16-insts")
+TARGET_BUILTIN(__builtin_amdgcn_ds_atomic_fadd_v2f16, "V2xV2x*3V2x", "n", "atomic-ds-pk-add-16-insts")
 TARGET_BUILTIN(__builtin_amdgcn_load_to_lds, "vv*v*3IUiIiIUi", "", "vmem-to-lds-load-insts")
 TARGET_BUILTIN(__builtin_amdgcn_global_load_lds, "vv*1v*3IUiIiIUi", "t", "vmem-to-lds-load-insts")