3, // cuda_shared
};
+/// The DWARF address class. Taken from
+/// https://docs.nvidia.com/cuda/archive/10.0/ptx-writers-guide-to-interoperability/index.html#cuda-specific-dwarf
+static const int NVPTXDWARFAddrSpaceMap[] = {
+ -1, // Default, opencl_private or opencl_generic - not defined
+ 5, // opencl_global
+ -1,
+ 8, // opencl_local or cuda_shared
+ 4, // opencl_constant or cuda_constant
+};
+
class LLVM_LIBRARY_VISIBILITY NVPTXTargetInfo : public TargetInfo {
static const char *const GCCRegNames[];
static const Builtin::Info BuiltinInfo[];
Opts.support("cl_khr_local_int32_extended_atomics");
}
+ /// \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 {
+ if (AddressSpace >= llvm::array_lengthof(NVPTXDWARFAddrSpaceMap) ||
+ NVPTXDWARFAddrSpaceMap[AddressSpace] < 0)
+ return llvm::None;
+ return NVPTXDWARFAddrSpaceMap[AddressSpace];
+ }
+
CallingConvCheckResult checkCallingConvention(CallingConv CC) const override {
// CUDA compilations support all of the host's calling conventions.
//
SmallVector<int64_t, 4> Expr;
unsigned AddressSpace =
CGM.getContext().getTargetAddressSpace(D->getType());
+ if (CGM.getLangOpts().CUDA && CGM.getLangOpts().CUDAIsDevice) {
+ if (D->hasAttr<CUDASharedAttr>())
+ AddressSpace =
+ CGM.getContext().getTargetAddressSpace(LangAS::cuda_shared);
+ else if (D->hasAttr<CUDAConstantAttr>())
+ AddressSpace =
+ CGM.getContext().getTargetAddressSpace(LangAS::cuda_constant);
+ }
AppendAddressSpaceXDeref(AddressSpace, Expr);
GVE = DBuilder.createGlobalVariableExpression(
--- /dev/null
+// RUN: %clang_cc1 -emit-llvm %s -o - -fcuda-is-device -triple nvptx-unknown-unknown -debug-info-kind=limited -dwarf-version=2 -debugger-tuning=gdb | FileCheck %s
+
+#include "Inputs/cuda.h"
+
+// CHECK-DAG: ![[FILEVAR0:[0-9]+]] = distinct !DIGlobalVariable(name: "FileVar0", scope: !{{[0-9]+}}, file: !{{[0-9]+}}, line: {{[0-9]+}}, type: !{{[0-9]+}}, isLocal: false, isDefinition: true)
+// CHECK-DAG: !DIGlobalVariableExpression(var: ![[FILEVAR0]], expr: !DIExpression())
+__device__ int FileVar0;
+// CHECK-DAG: ![[FILEVAR1:[0-9]+]] = distinct !DIGlobalVariable(name: "FileVar1", scope: !{{[0-9]+}}, file: !{{[0-9]+}}, line: {{[0-9]+}}, type: !{{[0-9]+}}, isLocal: false, isDefinition: true)
+// CHECK-DAG: !DIGlobalVariableExpression(var: ![[FILEVAR1]], expr: !DIExpression(DW_OP_constu, 8, DW_OP_swap, DW_OP_xderef))
+__device__ __shared__ int FileVar1;
+// CHECK-DAG: ![[FILEVAR2:[0-9]+]] = distinct !DIGlobalVariable(name: "FileVar2", scope: !{{[0-9]+}}, file: !{{[0-9]+}}, line: {{[0-9]+}}, type: !{{[0-9]+}}, isLocal: false, isDefinition: true)
+// CHECK-DAG: !DIGlobalVariableExpression(var: ![[FILEVAR2]], expr: !DIExpression(DW_OP_constu, 4, DW_OP_swap, DW_OP_xderef))
+__device__ __constant__ int FileVar2;
+
+__device__ void kernel1(
+ // CHECK-DAG: ![[ARG:[0-9]+]] = !DILocalVariable(name: "Arg", arg: {{[0-9]+}}, scope: !{{[0-9]+}}, file: !{{[0-9]+}}, line: {{[0-9]+}}, type: !{{[0-9]+}})
+ // CHECK-DAG: call void @llvm.dbg.declare(metadata i32* {{.*}}, metadata ![[ARG]], metadata !DIExpression()), !dbg !{{[0-9]+}}
+ int Arg) {
+ // CHECK-DAG: ![[FUNCVAR0:[0-9]+]] = distinct !DIGlobalVariable(name: "FuncVar0", scope: !{{[0-9]+}}, file: !{{[0-9]+}}, line: {{[0-9]+}}, type: !{{[0-9]+}}, isLocal: true, isDefinition: true)
+ // CHECK-DAG: !DIGlobalVariableExpression(var: ![[FUNCVAR0]], expr: !DIExpression(DW_OP_constu, 8, DW_OP_swap, DW_OP_xderef))
+ __shared__ int FuncVar0;
+ // CHECK-DAG: ![[FUNCVAR1:[0-9]+]] = !DILocalVariable(name: "FuncVar1", scope: !{{[0-9]+}}, file: !{{[0-9]+}}, line: {{[0-9]+}}, type: !{{[0-9]+}})
+ // CHECK-DAG: call void @llvm.dbg.declare(metadata i32* {{.*}}, metadata ![[FUNCVAR1]], metadata !DIExpression()), !dbg !{{[0-9]+}}
+ int FuncVar1;
+}