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SmallVector and SmallPtrSet allocations now power-of-two aligned.

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This time tested on both OSX and Linux.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178377 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jean-Luc Duprat
2013-03-29 22:07:12 +00:00
parent 4991289b33
commit e1e9366281
4 changed files with 81 additions and 33 deletions
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55
unittests/ADT/SmallPtrSetTest.cpp
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@ -17,6 +17,61 @@
using namespace llvm;
// SmallPtrSet swapping test.
TEST(SmallPtrSetTest, GrowthTest) {
int i;
int buf[8];
for(i=0; i<8; ++i) buf[i]=0;
SmallPtrSet<int *, 4> s;
typedef SmallPtrSet<int *, 4>::iterator iter;
s.insert(&buf[0]);
s.insert(&buf[1]);
s.insert(&buf[2]);
s.insert(&buf[3]);
EXPECT_EQ(4U, s.size());
i = 0;
for(iter I=s.begin(), E=s.end(); I!=E; ++I, ++i)
(**I)++;
EXPECT_EQ(4, i);
for(i=0; i<8; ++i)
EXPECT_EQ(i<4?1:0,buf[i]);
s.insert(&buf[4]);
s.insert(&buf[5]);
s.insert(&buf[6]);
s.insert(&buf[7]);
i = 0;
for(iter I=s.begin(), E=s.end(); I!=E; ++I, ++i)
(**I)++;
EXPECT_EQ(8, i);
s.erase(&buf[4]);
s.erase(&buf[5]);
s.erase(&buf[6]);
s.erase(&buf[7]);
EXPECT_EQ(4U, s.size());
i = 0;
for(iter I=s.begin(), E=s.end(); I!=E; ++I, ++i)
(**I)++;
EXPECT_EQ(4, i);
for(i=0; i<8; ++i)
EXPECT_EQ(i<4?3:1,buf[i]);
s.clear();
for(i=0; i<8; ++i) buf[i]=0;
for(i=0; i<128; ++i) s.insert(&buf[i%8]); // test repeated entires
EXPECT_EQ(8U, s.size());
for(iter I=s.begin(), E=s.end(); I!=E; ++I, ++i)
(**I)++;
for(i=0; i<8; ++i)
EXPECT_EQ(1,buf[i]);
}
TEST(SmallPtrSetTest, SwapTest) {
int buf[10];