6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-19 03:24:09 +00:00
Code Issues Projects Releases Wiki Activity

[block-freq] Add the APInt method extractBit.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197271 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael Gottesman
2013-12-13 20:47:34 +00:00
parent a23bd2e761
commit 5bb504f4ea
3 changed files with 37 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
unittests/ADT/APIntTest.cpp
View File

@ -597,4 +597,30 @@ TEST(APIntTest, tcDecrement) {
EXPECT_EQ(APInt::tcCompare(test, expected, 4), 0);
}
}
TEST(APIntTest, extractBit) {
// Single word check.
uint64_t E1 = 0x2CA7F46BF6569915ULL;
APInt A1(64, E1);
for (unsigned i = 0, e = 64; i < e; ++i) {
EXPECT_EQ(bool(E1 & (1ULL << i)),
A1.extractBit(i));
}
// Multiword check.
integerPart E2[4] = {
0xeb6eb136591cba21ULL,
0x7b9358bd6a33f10aULL,
0x7e7ffa5eadd8846ULL,
0x305f341ca00b613dULL
};
APInt A2(integerPartWidth*4, ArrayRef<integerPart>(E2, 4));
for (unsigned i = 0; i < 4; ++i) {
for (unsigned j = 0; j < integerPartWidth; ++j) {
EXPECT_EQ(bool(E2[i] & (1ULL << j)),
A2.extractBit(i*integerPartWidth + j));
}
}
}
}