Enable bf16 arithmetic for all subtargets.

Author: kosarev

clang/lib/Basic/Targets/AMDGPU.h

@@ -439,6 +439,7 @@ class LLVM_LIBRARY_VISIBILITY AMDGPUTargetInfo final : public TargetInfo {
   // pre-defined macros.
   bool handleTargetFeatures(std::vector<std::string> &Features,
                             DiagnosticsEngine &Diags) override {
+    HasFullBFloat16 = true;
     auto TargetIDFeatures =
         getAllPossibleTargetIDFeatures(getTriple(), getArchNameAMDGCN(GPUKind));
     for (const auto &F : Features) {
@@ -451,8 +452,6 @@ class LLVM_LIBRARY_VISIBILITY AMDGPUTargetInfo final : public TargetInfo {
         CUMode = false;
       else if (F == "+image-insts")
         HasImage = true;
-      else if (F == "+gfx950-insts" || F == "+gfx1250-insts")
-        HasFullBFloat16 = true;
       bool IsOn = F.front() == '+';
       StringRef Name = StringRef(F).drop_front();
       if (!llvm::is_contained(TargetIDFeatures, Name))

clang/test/CodeGen/AMDGPU/full-bf16.c

@@ -1,5 +1,10 @@
 // NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --version 5
+// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa-gnu -target-cpu tahiti -emit-llvm -o - %s | FileCheck %s
+// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa-gnu -target-cpu fiji -emit-llvm -o - %s | FileCheck %s
+// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa-gnu -target-cpu gfx900 -emit-llvm -o - %s | FileCheck %s
 // RUN: %clang_cc1 -triple amdgcn-amd-amdhsa-gnu -target-cpu gfx950 -emit-llvm -o - %s | FileCheck %s
+// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa-gnu -target-cpu gfx1010 -emit-llvm -o - %s | FileCheck %s
+// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa-gnu -target-cpu gfx1100 -emit-llvm -o - %s | FileCheck %s
 // RUN: %clang_cc1 -triple amdgcn-amd-amdhsa-gnu -target-cpu gfx1250 -emit-llvm -o - %s | FileCheck %s
 
 // CHECK-LABEL: define dso_local bfloat @div(