#include "lldb/Utility/Endian.h"
#include "lldb/Utility/Status.h"
#include "lldb/Utility/Stream.h"
+#include "lldb/Utility/StreamString.h"
#include "lldb/lldb-types.h"
#include "llvm/ADT/SmallString.h"
}
return false;
}
+
+llvm::raw_ostream &lldb_private::operator<<(llvm::raw_ostream &os, const Scalar &scalar) {
+ StreamString s;
+ scalar.GetValue(&s, /*show_type*/ true);
+ return os << s.GetString();
+}
--- /dev/null
+//===-- DWARFExpressionTest.cpp ----------------------------------*- C++-*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Expression/DWARFExpression.h"
+#include "lldb/Core/Value.h"
+#include "lldb/Core/dwarf.h"
+#include "lldb/Utility/StreamString.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/Testing/Support/Error.h"
+#include "gtest/gtest.h"
+
+using namespace lldb_private;
+
+static llvm::Expected<Scalar> Evaluate(llvm::ArrayRef<uint8_t> expr) {
+ DataExtractor extractor(expr.data(), expr.size(), lldb::eByteOrderLittle,
+ /*addr_size*/ 4);
+
+ Value result;
+ Status status;
+ if (!DWARFExpression::Evaluate(
+ /*exe_ctx*/ nullptr, /*reg_ctx*/ nullptr, /*opcode_ctx*/ nullptr,
+ extractor, /*dwarf_cu*/ nullptr, /*offset*/ 0, expr.size(),
+ lldb::eRegisterKindLLDB, /*initial_value_ptr*/ nullptr,
+ /*object_address_ptr*/ nullptr, result, &status))
+ return status.ToError();
+
+ return result.GetScalar();
+}
+
+TEST(DWARFExpression, DW_OP_pick) {
+ EXPECT_THAT_EXPECTED(Evaluate({DW_OP_lit1, DW_OP_lit0, DW_OP_pick, 0}),
+ llvm::HasValue(0));
+ EXPECT_THAT_EXPECTED(Evaluate({DW_OP_lit1, DW_OP_lit0, DW_OP_pick, 1}),
+ llvm::HasValue(1));
+ EXPECT_THAT_EXPECTED(Evaluate({DW_OP_lit1, DW_OP_lit0, DW_OP_pick, 2}),
+ llvm::Failed());
+}