[DebugInfo] Add address space when creating DIDerivedTypes

Differential Revision: https://reviews.llvm.org/D29671

llvm-svn: 297321

1 files changed, 26 insertions, 0 deletions

diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp
index 95321ec3813..6b0b9100b3e 100644
--- a/clang/lib/Basic/Targets.cpp
+++ b/clang/lib/Basic/Targets.cpp
@@ -2258,6 +2258,32 @@ public:
     return LangAS::opencl_constant;
   }
 
+  /// \returns Target specific vtbl ptr address space.
+  unsigned getVtblPtrAddressSpace() const override {
+    // \todo: We currently have address spaces defined in AMDGPU Backend. It
+    // would be nice if we could use it here instead of using bare numbers (same
+    // applies to getDWARFAddressSpace).
+    return 2; // constant.
+  }
+
+  /// \returns If a target requires an address within a target specific address
+  /// space \p AddressSpace to be converted in order to be used, then return the
+  /// corresponding target specific DWARF address space.
+  ///
+  /// \returns Otherwise return None and no conversion will be emitted in the
+  /// DWARF.
+  Optional<unsigned> getDWARFAddressSpace(
+      unsigned AddressSpace) const override {
+    switch (AddressSpace) {
+    case 0: // LLVM Private.
+      return 1; // DWARF Private.
+    case 3: // LLVM Local.
+      return 2; // DWARF Local.
+    default:
+      return None;
+    }
+  }
+
   CallingConvCheckResult checkCallingConvention(CallingConv CC) const override {
     switch (CC) {
       default: