[Driver][SYCL] Improve situations where .exe is added for AOT tools (#2467)

Previous fix only allowed for the .exe to be added for 'clang-cl' specific
compilations, which did not allow for usage using clang with a windows
specific target.

Author: mdtoguchi

clang/lib/Driver/ToolChains/SYCL.cpp

@@ -207,7 +207,8 @@ void SYCL::Linker::ConstructJob(Compilation &C, const JobAction &JA,
 
 static const char *makeExeName(Compilation &C, StringRef Name) {
   llvm::SmallString<8> ExeName(Name);
-  if (C.getDriver().IsCLMode())
+  const ToolChain *HostTC = C.getSingleOffloadToolChain<Action::OFK_Host>();
+  if (HostTC->getTriple().isWindowsMSVCEnvironment())
     ExeName.append(".exe");
   return C.getArgs().MakeArgString(ExeName);
 }

clang/test/Driver/sycl-offload.c

@@ -689,10 +689,16 @@
 // Check to be sure that for windows, the 'exe' tools are called
 // RUN: %clang_cl -fsycl -fsycl-targets=spir64_x86_64-unknown-unknown-sycldevice %s -### 2>&1 \
 // RUN:  | FileCheck %s -check-prefixes=CHK-TOOLS-CPU-WIN
+// RUN: %clang -target x86_64-pc-windows-msvc -fsycl -fsycl-targets=spir64_x86_64-unknown-unknown-sycldevice %s -### 2>&1 \
+// RUN:  | FileCheck %s -check-prefixes=CHK-TOOLS-CPU-WIN
 // RUN: %clang_cl -fsycl -fsycl-targets=spir64_gen-unknown-unknown-sycldevice %s -### 2>&1 \
 // RUN:  | FileCheck %s -check-prefixes=CHK-TOOLS-GEN-WIN
+// RUN: %clang -target x86_64-pc-windows-msvc -fsycl -fsycl-targets=spir64_gen-unknown-unknown-sycldevice %s -### 2>&1 \
+// RUN:  | FileCheck %s -check-prefixes=CHK-TOOLS-GEN-WIN
 // RUN: %clang_cl -fsycl -fsycl-targets=spir64_fpga-unknown-unknown-sycldevice %s -### 2>&1 \
 // RUN:  | FileCheck %s -check-prefixes=CHK-TOOLS-FPGA-WIN
+// RUN: %clang -target x86_64-pc-windows-msvc -fsycl -fsycl-targets=spir64_fpga-unknown-unknown-sycldevice %s -### 2>&1 \
+// RUN:  | FileCheck %s -check-prefixes=CHK-TOOLS-FPGA-WIN
 // CHK-TOOLS-GEN-WIN: ocloc.exe{{.*}}
 // CHK-TOOLS-CPU-WIN: opencl-aot.exe{{.*}}
 // CHK-TOOLS-FPGA-WIN: aoc.exe{{.*}}