Author: Alexey Bader
Date: 2019-12-11T12:40:43+03:00
New Revision: cb30ad728f0b7666691c72a6a1399f36ebc60ad5

URL: 
https://github.com/llvm/llvm-project/commit/cb30ad728f0b7666691c72a6a1399f36ebc60ad5
DIFF: 
https://github.com/llvm/llvm-project/commit/cb30ad728f0b7666691c72a6a1399f36ebc60ad5.diff

LOG: [SYCL] Add support for auxiliary triple specification to Frontend

Summary:
Add host predefined macros to compilation for SYCL device, which is
required for pre-processing host specific includes (e.g. system
headers).

Reviewers: ABataev, jdoerfert

Subscribers: ebevhan, Anastasia, cfe-commits, keryell, Naghasan, Fznamznon

Tags: #clang

Differential Revision: https://reviews.llvm.org/D71286

Signed-off-by: Alexey Bader <alexey.ba...@intel.com>

Added: 
    clang/test/Frontend/sycl-aux-triple.cpp

Modified: 
    clang/lib/Frontend/CompilerInstance.cpp
    clang/lib/Frontend/InitPreprocessor.cpp

Removed: 
    


################################################################################
diff  --git a/clang/lib/Frontend/CompilerInstance.cpp 
b/clang/lib/Frontend/CompilerInstance.cpp
index b69dc4f854ff..05ecc3f447cc 100644
--- a/clang/lib/Frontend/CompilerInstance.cpp
+++ b/clang/lib/Frontend/CompilerInstance.cpp
@@ -917,8 +917,9 @@ bool CompilerInstance::ExecuteAction(FrontendAction &Act) {
   if (!hasTarget())
     return false;
 
-  // Create TargetInfo for the other side of CUDA and OpenMP compilation.
-  if ((getLangOpts().CUDA || getLangOpts().OpenMPIsDevice) &&
+  // Create TargetInfo for the other side of CUDA/OpenMP/SYCL compilation.
+  if ((getLangOpts().CUDA || getLangOpts().OpenMPIsDevice ||
+       getLangOpts().SYCLIsDevice) &&
       !getFrontendOpts().AuxTriple.empty()) {
     auto TO = std::make_shared<TargetOptions>();
     TO->Triple = llvm::Triple::normalize(getFrontendOpts().AuxTriple);

diff  --git a/clang/lib/Frontend/InitPreprocessor.cpp 
b/clang/lib/Frontend/InitPreprocessor.cpp
index c27c33c530f6..b1c7aed0d44e 100644
--- a/clang/lib/Frontend/InitPreprocessor.cpp
+++ b/clang/lib/Frontend/InitPreprocessor.cpp
@@ -1124,7 +1124,8 @@ void clang::InitializePreprocessor(
   if (InitOpts.UsePredefines) {
     // FIXME: This will create multiple definitions for most of the predefined
     // macros. This is not the right way to handle this.
-    if ((LangOpts.CUDA || LangOpts.OpenMPIsDevice) && PP.getAuxTargetInfo())
+    if ((LangOpts.CUDA || LangOpts.OpenMPIsDevice || LangOpts.SYCLIsDevice) &&
+        PP.getAuxTargetInfo())
       InitializePredefinedMacros(*PP.getAuxTargetInfo(), LangOpts, FEOpts,
                                  PP.getPreprocessorOpts(), Builder);
 

diff  --git a/clang/test/Frontend/sycl-aux-triple.cpp 
b/clang/test/Frontend/sycl-aux-triple.cpp
new file mode 100644
index 000000000000..38b6a24fb3ce
--- /dev/null
+++ b/clang/test/Frontend/sycl-aux-triple.cpp
@@ -0,0 +1,5 @@
+// RUN: %clang_cc1 %s -triple spir -aux-triple x86_64-unknown-linux-gnu -E -dM 
| FileCheck %s
+// RUN: %clang_cc1 %s -fsycl-is-device -triple spir -aux-triple 
x86_64-unknown-linux-gnu -E -dM | FileCheck --check-prefix=CHECK-SYCL %s
+
+// CHECK-NOT:#define __x86_64__ 1
+// CHECK-SYCL:#define __x86_64__ 1


        
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