explicit APSInt(uint32_t BitWidth, bool isUnsigned = true)
: APInt(BitWidth, 0), IsUnsigned(isUnsigned) {}
- explicit APSInt(const APInt &I, bool isUnsigned = true)
- : APInt(I), IsUnsigned(isUnsigned) {}
+ explicit APSInt(APInt I, bool isUnsigned = true)
+ : APInt(std::move(I)), IsUnsigned(isUnsigned) {}
- APSInt &operator=(const APSInt &RHS) {
- APInt::operator=(RHS);
- IsUnsigned = RHS.IsUnsigned;
- return *this;
- }
-
- APSInt &operator=(const APInt &RHS) {
+ APSInt &operator=(APInt RHS) {
// Retain our current sign.
- APInt::operator=(RHS);
+ APInt::operator=(std::move(RHS));
return *this;
}
--- /dev/null
+//===- llvm/unittest/ADT/APSIntTest.cpp - APSInt unit tests ---------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/ADT/APSInt.h"
+#include "gtest/gtest.h"
+
+using namespace llvm;
+
+namespace {
+
+TEST(APSIntTest, MoveTest) {
+ APSInt A(32, true);
+ EXPECT_TRUE(A.isUnsigned());
+
+ APSInt B(128, false);
+ A = B;
+ EXPECT_FALSE(A.isUnsigned());
+
+ APSInt C(B);
+ EXPECT_FALSE(C.isUnsigned());
+
+ APInt Wide(256, 0);
+ const uint64_t *Bits = Wide.getRawData();
+ APSInt D(std::move(Wide));
+ EXPECT_TRUE(D.isUnsigned());
+ EXPECT_EQ(Bits, D.getRawData()); // Verify that "Wide" was really moved.
+
+ A = APSInt(64, true);
+ EXPECT_TRUE(A.isUnsigned());
+
+ Wide = APInt(128, 1);
+ Bits = Wide.getRawData();
+ A = std::move(Wide);
+ EXPECT_TRUE(A.isUnsigned());
+ EXPECT_EQ(Bits, A.getRawData()); // Verify that "Wide" was really moved.
+}
+
+}