Merge branch 'users/chapuni/cov/single/nextcount-base' into users/chapuni/cov/single/nextcountusers/chapuni/cov/single/nextcount

1 files changed, 61 insertions, 0 deletions

diff --git a/llvm/unittests/CodeGen/GlobalISel/PatternMatchTest.cpp b/llvm/unittests/CodeGen/GlobalISel/PatternMatchTest.cpp
index 59a86fa..40cd055 100644
--- a/llvm/unittests/CodeGen/GlobalISel/PatternMatchTest.cpp
+++ b/llvm/unittests/CodeGen/GlobalISel/PatternMatchTest.cpp
@@ -224,6 +224,32 @@ TEST_F(AArch64GISelMITest, MatchBinaryOp) {
   auto MIBAddCst = B.buildAdd(s64, MIBCst, Copies[0]);
   auto MIBUnmerge = B.buildUnmerge({s32, s32}, B.buildConstant(s64, 42));
 
+  // Match min/max, and make sure they're commutative.
+  auto SMin = B.buildSMin(s64, Copies[2], MIBAdd);
+  EXPECT_TRUE(mi_match(SMin.getReg(0), *MRI,
+                       m_GSMin(m_GAdd(m_Reg(Src1), m_Reg(Src2)), m_Reg(Src0))));
+  EXPECT_EQ(Src0, Copies[2]);
+  EXPECT_EQ(Src1, Copies[0]);
+  EXPECT_EQ(Src2, Copies[1]);
+  auto SMax = B.buildSMax(s64, Copies[2], MIBAdd);
+  EXPECT_TRUE(mi_match(SMax.getReg(0), *MRI,
+                       m_GSMax(m_GAdd(m_Reg(Src1), m_Reg(Src2)), m_Reg(Src0))));
+  EXPECT_EQ(Src0, Copies[2]);
+  EXPECT_EQ(Src1, Copies[0]);
+  EXPECT_EQ(Src2, Copies[1]);
+  auto UMin = B.buildUMin(s64, Copies[2], MIBAdd);
+  EXPECT_TRUE(mi_match(UMin.getReg(0), *MRI,
+                       m_GUMin(m_GAdd(m_Reg(Src1), m_Reg(Src2)), m_Reg(Src0))));
+  EXPECT_EQ(Src0, Copies[2]);
+  EXPECT_EQ(Src1, Copies[0]);
+  EXPECT_EQ(Src2, Copies[1]);
+  auto UMax = B.buildUMax(s64, Copies[2], MIBAdd);
+  EXPECT_TRUE(mi_match(UMax.getReg(0), *MRI,
+                       m_GUMax(m_GAdd(m_Reg(Src1), m_Reg(Src2)), m_Reg(Src0))));
+  EXPECT_EQ(Src0, Copies[2]);
+  EXPECT_EQ(Src1, Copies[0]);
+  EXPECT_EQ(Src2, Copies[1]);
+
   // m_BinOp with opcode.
   // Match binary instruction, opcode and its non-commutative operands.
   match = mi_match(MIBAddCst, *MRI,
@@ -576,6 +602,11 @@ TEST_F(AArch64GISelMITest, MatchMiscellaneous) {
   auto MIBAdd = B.buildAdd(s64, Copies[0], Copies[1]);
   Register Reg = MIBAdd.getReg(0);
 
+  // Extract the type.
+  LLT Ty;
+  EXPECT_TRUE(mi_match(Reg, *MRI, m_GAdd(m_Type(Ty), m_Reg())));
+  EXPECT_EQ(Ty, s64);
+
   // Only one use of Reg.
   B.buildCast(LLT::pointer(0, 32), MIBAdd);
   EXPECT_TRUE(mi_match(Reg, *MRI, m_OneUse(m_GAdd(m_Reg(), m_Reg()))));
@@ -889,6 +920,36 @@ TEST_F(AArch64GISelMITest, MatchSpecificReg) {
   EXPECT_TRUE(mi_match(Add.getReg(0), *MRI, m_GAdd(m_SpecificReg(Reg), m_Reg())));
 }
 
+TEST_F(AArch64GISelMITest, DeferredMatching) {
+  setUp();
+  if (!TM)
+    GTEST_SKIP();
+  auto s64 = LLT::scalar(64);
+  auto s32 = LLT::scalar(32);
+
+  auto Cst1 = B.buildConstant(s64, 42);
+  auto Cst2 = B.buildConstant(s64, 314);
+  auto Add = B.buildAdd(s64, Cst1, Cst2);
+  auto Sub = B.buildSub(s64, Add, Cst1);
+
+  auto TruncAdd = B.buildTrunc(s32, Add);
+  auto TruncSub = B.buildTrunc(s32, Sub);
+  auto NarrowAdd = B.buildAdd(s32, TruncAdd, TruncSub);
+
+  Register X;
+  EXPECT_TRUE(mi_match(Sub.getReg(0), *MRI,
+                       m_GSub(m_GAdd(m_Reg(X), m_Reg()), m_DeferredReg(X))));
+  LLT Ty;
+  EXPECT_TRUE(
+      mi_match(NarrowAdd.getReg(0), *MRI,
+               m_GAdd(m_GTrunc(m_Type(Ty)), m_GTrunc(m_DeferredType(Ty)))));
+
+  // Test commutative.
+  auto Add2 = B.buildAdd(s64, Sub, Cst1);
+  EXPECT_TRUE(mi_match(Add2.getReg(0), *MRI,
+                       m_GAdd(m_Reg(X), m_GSub(m_Reg(), m_DeferredReg(X)))));
+}
+
 } // namespace
 
 int main(int argc, char **argv) {