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| author | Chandler Carruth <chandlerc@gmail.com> | 2014-01-05 03:28:29 +0000 |
|---|---|---|
| committer | Chandler Carruth <chandlerc@gmail.com> | 2014-01-05 03:28:29 +0000 |
| commit | 272690897ed88b0a53538aefafd7d084b3a7243c (patch) | |
| tree | 6e8366fed7759721a622f36ba0adb47754b4a647 /unittests | |
| parent | b54a0ac20ac76f845026eab8fca112d1d40927de (diff) | |
| download | llvm-272690897ed88b0a53538aefafd7d084b3a7243c.tar.gz llvm-272690897ed88b0a53538aefafd7d084b3a7243c.tar.bz2 llvm-272690897ed88b0a53538aefafd7d084b3a7243c.tar.xz | |
Add support to the pattern match library for matching NSW and NUW
instructions. I needed this for a quick experiment I was making, and
while I've no idea if that will ever get committed, I didn't want to
throw away the pattern match code and for anyone else to have to write
it again. I've added unittests to make sure this works correctly.
In fun news, this also uncovered the IRBuilder bug. Doh!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198541 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'unittests')
| -rw-r--r-- | unittests/IR/PatternMatch.cpp | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/unittests/IR/PatternMatch.cpp b/unittests/IR/PatternMatch.cpp index b593648bb3..150f1657b9 100644 --- a/unittests/IR/PatternMatch.cpp +++ b/unittests/IR/PatternMatch.cpp @@ -201,4 +201,78 @@ TEST_F(PatternMatchTest, FloatingPointUnorderedMax) { EXPECT_EQ(R, MatchR); } +TEST_F(PatternMatchTest, OverflowingBinOps) { + Value *L = IRB.getInt32(1); + Value *R = IRB.getInt32(2); + Value *MatchL, *MatchR; + + EXPECT_TRUE( + m_NSWAdd(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNSWAdd(L, R))); + EXPECT_EQ(L, MatchL); + EXPECT_EQ(R, MatchR); + MatchL = MatchR = 0; + EXPECT_TRUE( + m_NSWSub(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNSWSub(L, R))); + EXPECT_EQ(L, MatchL); + EXPECT_EQ(R, MatchR); + MatchL = MatchR = 0; + EXPECT_TRUE( + m_NSWMul(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNSWMul(L, R))); + EXPECT_EQ(L, MatchL); + EXPECT_EQ(R, MatchR); + MatchL = MatchR = 0; + EXPECT_TRUE(m_NSWShl(m_Value(MatchL), m_Value(MatchR)).match( + IRB.CreateShl(L, R, "", /* NUW */ false, /* NSW */ true))); + EXPECT_EQ(L, MatchL); + EXPECT_EQ(R, MatchR); + + EXPECT_TRUE( + m_NUWAdd(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNUWAdd(L, R))); + EXPECT_EQ(L, MatchL); + EXPECT_EQ(R, MatchR); + MatchL = MatchR = 0; + EXPECT_TRUE( + m_NUWSub(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNUWSub(L, R))); + EXPECT_EQ(L, MatchL); + EXPECT_EQ(R, MatchR); + MatchL = MatchR = 0; + EXPECT_TRUE( + m_NUWMul(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNUWMul(L, R))); + EXPECT_EQ(L, MatchL); + EXPECT_EQ(R, MatchR); + MatchL = MatchR = 0; + EXPECT_TRUE(m_NUWShl(m_Value(MatchL), m_Value(MatchR)).match( + IRB.CreateShl(L, R, "", /* NUW */ true, /* NSW */ false))); + EXPECT_EQ(L, MatchL); + EXPECT_EQ(R, MatchR); + + EXPECT_FALSE(m_NSWAdd(m_Value(), m_Value()).match(IRB.CreateAdd(L, R))); + EXPECT_FALSE(m_NSWAdd(m_Value(), m_Value()).match(IRB.CreateNUWAdd(L, R))); + EXPECT_FALSE(m_NSWAdd(m_Value(), m_Value()).match(IRB.CreateNSWSub(L, R))); + EXPECT_FALSE(m_NSWSub(m_Value(), m_Value()).match(IRB.CreateSub(L, R))); + EXPECT_FALSE(m_NSWSub(m_Value(), m_Value()).match(IRB.CreateNUWSub(L, R))); + EXPECT_FALSE(m_NSWSub(m_Value(), m_Value()).match(IRB.CreateNSWAdd(L, R))); + EXPECT_FALSE(m_NSWMul(m_Value(), m_Value()).match(IRB.CreateMul(L, R))); + EXPECT_FALSE(m_NSWMul(m_Value(), m_Value()).match(IRB.CreateNUWMul(L, R))); + EXPECT_FALSE(m_NSWMul(m_Value(), m_Value()).match(IRB.CreateNSWAdd(L, R))); + EXPECT_FALSE(m_NSWShl(m_Value(), m_Value()).match(IRB.CreateShl(L, R))); + EXPECT_FALSE(m_NSWShl(m_Value(), m_Value()).match( + IRB.CreateShl(L, R, "", /* NUW */ true, /* NSW */ false))); + EXPECT_FALSE(m_NSWShl(m_Value(), m_Value()).match(IRB.CreateNSWAdd(L, R))); + + EXPECT_FALSE(m_NUWAdd(m_Value(), m_Value()).match(IRB.CreateAdd(L, R))); + EXPECT_FALSE(m_NUWAdd(m_Value(), m_Value()).match(IRB.CreateNSWAdd(L, R))); + EXPECT_FALSE(m_NUWAdd(m_Value(), m_Value()).match(IRB.CreateNUWSub(L, R))); + EXPECT_FALSE(m_NUWSub(m_Value(), m_Value()).match(IRB.CreateSub(L, R))); + EXPECT_FALSE(m_NUWSub(m_Value(), m_Value()).match(IRB.CreateNSWSub(L, R))); + EXPECT_FALSE(m_NUWSub(m_Value(), m_Value()).match(IRB.CreateNUWAdd(L, R))); + EXPECT_FALSE(m_NUWMul(m_Value(), m_Value()).match(IRB.CreateMul(L, R))); + EXPECT_FALSE(m_NUWMul(m_Value(), m_Value()).match(IRB.CreateNSWMul(L, R))); + EXPECT_FALSE(m_NUWMul(m_Value(), m_Value()).match(IRB.CreateNUWAdd(L, R))); + EXPECT_FALSE(m_NUWShl(m_Value(), m_Value()).match(IRB.CreateShl(L, R))); + EXPECT_FALSE(m_NUWShl(m_Value(), m_Value()).match( + IRB.CreateShl(L, R, "", /* NUW */ false, /* NSW */ true))); + EXPECT_FALSE(m_NUWShl(m_Value(), m_Value()).match(IRB.CreateNUWAdd(L, R))); +} + } // anonymous namespace. |