[AMDGPU] Fix size and alignment of size_t and pointer types

Differential Revision: https://reviews.llvm.org/D34995

llvm-svn: 307121

1 files changed, 14 insertions, 6 deletions

diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp
index 4ff61eb5220..28e6d834ccf 100644
--- a/clang/lib/Basic/Targets.cpp
+++ b/clang/lib/Basic/Targets.cpp
@@ -2189,6 +2189,15 @@ public:
                        Triple.getEnvironmentName() == "amdgizcl" ||
                        !isAMDGCN(Triple));
     UseAddrSpaceMapMangling = true;
+
+    // Set pointer width and alignment for target address space 0.
+    PointerWidth = PointerAlign = DataLayout->getPointerSizeInBits();
+    if (getMaxPointerWidth() == 64) {
+      LongWidth = LongAlign = 64;
+      SizeType = UnsignedLong;
+      PtrDiffType = SignedLong;
+      IntPtrType = SignedLong;
+    }
   }
 
   void setAddressSpaceMap(bool DefaultIsPrivate) {
@@ -2216,6 +2225,10 @@ public:
     return 64;
   }
 
+  uint64_t getPointerAlignV(unsigned AddrSpace) const override {
+    return getPointerWidthV(AddrSpace);
+  }
+
   uint64_t getMaxPointerWidth() const override {
     return getTriple().getArch() == llvm::Triple::amdgcn ? 64 : 32;
   }
@@ -2392,12 +2405,7 @@ public:
   }
 
   /// \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.
-  }
+  unsigned getVtblPtrAddressSpace() const override { return AS.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