Update test

Author: PietroGhg

clang/test/Preprocessor/sycl-macro-target-specific.cpp

@@ -42,6 +42,8 @@
 // RUN: | FileCheck --check-prefix=CHECK-SYCL-FP-ATOMICS %s
 // RUN: %clang_cc1 %s -fsycl-is-device -triple amdgcn-amdhsa-amdhsa -E -dM \
 // RUN: | FileCheck --check-prefix=CHECK-SYCL-FP-ATOMICS %s
+// RUN: %clang_cc1 %s -fsycl-is-device -triple x86_64-unknown-linux-gnu -fsycl-is-native-cpu  \
+// RUN: -E -dM | FileCheck --check-prefix=CHECK-SYCL-FP-ATOMICS %s
 // CHECK-SYCL-FP-ATOMICS: #define SYCL_USE_NATIVE_FP_ATOMICS
 // CHECK-SYCL-FP-ATOMICS-NEG-NOT: #define SYCL_USE_NATIVE_FP_ATOMICS
 

llvm/lib/SYCLNativeCPUUtils/FAtomicsNativeCPU.cpp

@@ -24,6 +24,7 @@ PreservedAnalyses FAtomicsNativeCPU::run(Module &M,
                                          ModuleAnalysisManager &MAM) {
   bool ModuleChanged = false;
   auto &Ctx = M.getContext();
+  // TODO: add checks for windows mangling
   for (auto &F : M) {
     AtomicRMWInst::BinOp OpCode;
     if (F.getName().starts_with("_Z21__spirv_AtomicFAddEXT")) {

sycl/test/check_device_code/native_cpu/fp_atomic.cpp

@@ -1,3 +1,4 @@
+// REQUIRES: linux
 // RUN: %clangxx -fsycl-device-only  -fsycl-targets=native_cpu -S -emit-llvm  -o %t_temp.ll %s
 // RUN: %clangxx -mllvm -sycl-native-cpu-backend -S -emit-llvm -o - %t_temp.ll | FileCheck %s
 #include <sycl/sycl.hpp>