[OpenCL] Add DWARF address spaces mapping for SPIR

Extend debug info handling by adding DWARF address space mapping for
SPIR, with corresponding test case.

Reviewed By: Anastasia

Differential Revision: https://reviews.llvm.org/D103097

diff --git a/clang/lib/Basic/Targets/SPIR.h b/clang/lib/Basic/Targets/SPIR.h
index 638071d..c429b27 100644 (file)
--- a/clang/lib/Basic/Targets/SPIR.h
+++ b/clang/lib/Basic/Targets/SPIR.h
@@ -117,6 +117,11 @@ public:
     return TargetInfo::VoidPtrBuiltinVaList;
   }
 
+  Optional<unsigned>
+  getDWARFAddressSpace(unsigned AddressSpace) const override {
+    return AddressSpace;
+  }
+
   CallingConvCheckResult checkCallingConvention(CallingConv CC) const override {
     return (CC == CC_SpirFunction || CC == CC_OpenCLKernel) ? CCCR_OK
                                                             : CCCR_Warning;

diff --git a/clang/test/CodeGenOpenCL/spir-debug-info-pointer-address-space.cl b/clang/test/CodeGenOpenCL/spir-debug-info-pointer-address-space.cl
new file mode 100644 (file)
index 0000000..28b6c67
--- /dev/null
+++ b/clang/test/CodeGenOpenCL/spir-debug-info-pointer-address-space.cl
@@ -0,0 +1,23 @@
+// RUN: %clang_cc1 -cl-std=CL2.0 -debug-info-kind=limited -dwarf-version=5 -emit-llvm -O0 -triple spir-unknown-unknown -o - %s | FileCheck %s
+// RUN: %clang_cc1 -cl-std=CL2.0 -debug-info-kind=limited -dwarf-version=5 -emit-llvm -O0 -triple spir64-unknown-unknown -o - %s | FileCheck %s
+
+// CHECK-DAG: ![[DWARF_ADDRESS_SPACE_GLOBAL:[0-9]+]] = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !{{[0-9]+}}, size: {{[0-9]+}}, dwarfAddressSpace: 1)
+// CHECK-DAG: ![[DWARF_ADDRESS_SPACE_CONSTANT:[0-9]+]] = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !{{[0-9]+}}, size: {{[0-9]+}}, dwarfAddressSpace: 2)
+// CHECK-DAG: ![[DWARF_ADDRESS_SPACE_LOCAL:[0-9]+]] = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !{{[0-9]+}}, size: {{[0-9]+}}, dwarfAddressSpace: 3)
+// CHECK-DAG: ![[DWARF_ADDRESS_SPACE_PRIVATE:[0-9]+]] = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !{{[0-9]+}}, size: {{[0-9]+}}, dwarfAddressSpace: 0)
+// CHECK-DAG: ![[DWARF_ADDRESS_SPACE_GENERIC:[0-9]+]] = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !{{[0-9]+}}, size: {{[0-9]+}}, dwarfAddressSpace: 4)
+
+// CHECK-DAG: distinct !DIGlobalVariable(name: "FileVar0", scope: !{{[0-9]+}}, file: !{{[0-9]+}}, line: {{[0-9]+}}, type: ![[DWARF_ADDRESS_SPACE_GLOBAL]], isLocal: false, isDefinition: true)
+global int *FileVar0;
+
+// CHECK-DAG: distinct !DIGlobalVariable(name: "FileVar1", scope: !{{[0-9]+}}, file: !{{[0-9]+}}, line: {{[0-9]+}}, type: ![[DWARF_ADDRESS_SPACE_CONSTANT]], isLocal: false, isDefinition: true)
+constant int *FileVar1;
+
+// CHECK-DAG: distinct !DIGlobalVariable(name: "FileVar2", scope: !{{[0-9]+}}, file: !{{[0-9]+}}, line: {{[0-9]+}}, type: ![[DWARF_ADDRESS_SPACE_LOCAL]], isLocal: false, isDefinition: true)
+local int *FileVar2;
+
+// CHECK-DAG: distinct !DIGlobalVariable(name: "FileVar3", scope: !{{[0-9]+}}, file: !{{[0-9]+}}, line: {{[0-9]+}}, type: ![[DWARF_ADDRESS_SPACE_PRIVATE]], isLocal: false, isDefinition: true)
+private int *FileVar3;
+
+// CHECK-DAG: distinct !DIGlobalVariable(name: "FileVar4", scope: !{{[0-9]+}}, file: !{{[0-9]+}}, line: {{[0-9]+}}, type: ![[DWARF_ADDRESS_SPACE_GENERIC]], isLocal: false, isDefinition: true)
+int *FileVar4;