[COFF, ARM64] Add support for Windows ARM64 COFF format

Summary: This is the clang part of the initial implementation to support Windows ARM64 COFF format.

Reviewers: ruiu, t.p.northover, rnk, compnerd

Reviewed By: ruiu, compnerd

Subscribers: aemerson, kristof.beyls, cfe-commits, llvm-commits

Differential Revision: https://reviews.llvm.org/D34706

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@306489 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index b9d8dc04b32629e6f79a5bd67f4663ce978f497e..02ded70b2011ee1f79e5c435244601e3d4d3d33f 100644 (file)
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -6550,6 +6550,43 @@ public:
   }
 };
 
+class MicrosoftARM64TargetInfo
+    : public WindowsTargetInfo<AArch64leTargetInfo> {
+  const llvm::Triple Triple;
+
+public:
+  MicrosoftARM64TargetInfo(const llvm::Triple &Triple,
+                             const TargetOptions &Opts)
+      : WindowsTargetInfo<AArch64leTargetInfo>(Triple, Opts), Triple(Triple) {
+    WCharType = UnsignedShort;
+    SizeType = UnsignedLongLong;
+    TheCXXABI.set(TargetCXXABI::Microsoft);
+  }
+
+  void setDataLayout() override {
+    resetDataLayout("e-m:w-i64:64-i128:128-n32:64-S128");
+  }
+
+  void getVisualStudioDefines(const LangOptions &Opts,
+                              MacroBuilder &Builder) const {
+    WindowsTargetInfo<AArch64leTargetInfo>::getVisualStudioDefines(Opts,
+                                                                   Builder);
+    Builder.defineMacro("_WIN32", "1");
+    Builder.defineMacro("_WIN64", "1");
+    Builder.defineMacro("_M_ARM64", "1");
+  }
+
+  void getTargetDefines(const LangOptions &Opts,
+                        MacroBuilder &Builder) const override {
+    WindowsTargetInfo::getTargetDefines(Opts, Builder);
+    getVisualStudioDefines(Opts, Builder);
+  }
+
+  BuiltinVaListKind getBuiltinVaListKind() const override {
+    return TargetInfo::CharPtrBuiltinVaList;
+  }
+};
+
 class AArch64beTargetInfo : public AArch64TargetInfo {
   void setDataLayout() override {
     assert(!getTriple().isOSBinFormatMachO());
@@ -9406,6 +9443,8 @@ static TargetInfo *AllocateTarget(const llvm::Triple &Triple,
       return new NetBSDTargetInfo<AArch64leTargetInfo>(Triple, Opts);
     case llvm::Triple::OpenBSD:
       return new OpenBSDTargetInfo<AArch64leTargetInfo>(Triple, Opts);
+    case llvm::Triple::Win32:
+      return new MicrosoftARM64TargetInfo(Triple, Opts);
     default:
       return new AArch64leTargetInfo(Triple, Opts);
     }

diff --git a/test/Preprocessor/predefined-macros.c b/test/Preprocessor/predefined-macros.c
index 7385cd2c93efde85c417e30ca93580ac62675d02..662a712d64772aa1730cab7c58412e9d5e98b18b 100644 (file)
--- a/test/Preprocessor/predefined-macros.c
+++ b/test/Preprocessor/predefined-macros.c
@@ -185,3 +185,9 @@
 // CHECK-CL20-NOT: #define __FAST_RELAXED_MATH__ 1
 // CHECK-FRM: #define __FAST_RELAXED_MATH__ 1
 
+// RUN: %clang_cc1 -triple aarch64-windows %s -E -dM -o - -x cl \
+// RUN:   | FileCheck -match-full-lines %s --check-prefix=CHECK-ARM64-WIN
+
+// CHECK-ARM64-WIN: #define _M_ARM64 1
+// CHECK-ARM64-WIN: #define _WIN32 1
+// CHECK-ARM64-WIN: #define _WIN64 1