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SmallVector: Move, don't copy, elements to make space for an insertion.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210432 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie
2014-06-08 19:12:28 +00:00
parent aa53e49779
commit aa72ac7dad
2 changed files with 40 additions and 1 deletions
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38
unittests/ADT/SmallVectorTest.cpp
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@@ -26,8 +26,12 @@ namespace {
class Constructable {
private:
static int numConstructorCalls;
static int numMoveConstructorCalls;
static int numCopyConstructorCalls;
static int numDestructorCalls;
static int numAssignmentCalls;
static int numMoveAssignmentCalls;
static int numCopyAssignmentCalls;
bool constructed;
int value;
@@ -44,11 +48,13 @@ public:
Constructable(const Constructable & src) : constructed(true) {
value = src.value;
++numConstructorCalls;
++numCopyConstructorCalls;
}
Constructable(Constructable && src) : constructed(true) {
value = src.value;
++numConstructorCalls;
++numMoveConstructorCalls;
}
~Constructable() {
@@ -61,6 +67,7 @@ public:
EXPECT_TRUE(constructed);
value = src.value;
++numAssignmentCalls;
++numCopyAssignmentCalls;
return *this;
}
@@ -68,6 +75,7 @@ public:
EXPECT_TRUE(constructed);
value = src.value;
++numAssignmentCalls;
++numMoveAssignmentCalls;
return *this;
}
@@ -77,18 +85,42 @@ public:
static void reset() {
numConstructorCalls = 0;
numMoveConstructorCalls = 0;
numCopyConstructorCalls = 0;
numDestructorCalls = 0;
numAssignmentCalls = 0;
numMoveAssignmentCalls = 0;
numCopyAssignmentCalls = 0;
}
static int getNumConstructorCalls() {
return numConstructorCalls;
}
static int getNumMoveConstructorCalls() {
return numMoveConstructorCalls;
}
static int getNumCopyConstructorCalls() {
return numCopyConstructorCalls;
}
static int getNumDestructorCalls() {
return numDestructorCalls;
}
static int getNumAssignmentCalls() {
return numAssignmentCalls;
}
static int getNumMoveAssignmentCalls() {
return numMoveAssignmentCalls;
}
static int getNumCopyAssignmentCalls() {
return numCopyAssignmentCalls;
}
friend bool operator==(const Constructable & c0, const Constructable & c1) {
return c0.getValue() == c1.getValue();
}
@@ -100,8 +132,12 @@ public:
};
int Constructable::numConstructorCalls;
int Constructable::numCopyConstructorCalls;
int Constructable::numMoveConstructorCalls;
int Constructable::numDestructorCalls;
int Constructable::numAssignmentCalls;
int Constructable::numCopyAssignmentCalls;
int Constructable::numMoveAssignmentCalls;
// Test fixture class
template <typename VectorT>
@@ -430,8 +466,10 @@ TYPED_TEST(SmallVectorTest, InsertRepeatedTest) {
SCOPED_TRACE("InsertRepeatedTest");
this->makeSequence(this->theVector, 10, 15);
Constructable::reset();
typename TypeParam::iterator I =
this->theVector.insert(this->theVector.begin() + 1, 2, Constructable(16));
EXPECT_EQ(0, Constructable::getNumCopyConstructorCalls());
EXPECT_EQ(this->theVector.begin() + 1, I);
this->assertValuesInOrder(this->theVector, 8u,
10, 16, 16, 11, 12, 13, 14, 15);