Added test for unroll + inline

  EXPECT_EQ(countSubstring(llvm, "__quantum__qis__cnot"), 2);

}

TEST(qasm3PassManagerTester, checkLoopUnrollWithInline) {

  // Unroll the loop and inline

  // Trotter decompose

  // Note: using the inv (adjoint) modifier is not supported

  // since it is a runtime feature...

  // hence, we need to make the adjoint explicit.

  const std::string src = R"#(OPENQASM 3;

include "stdgates.inc";

def cnot_ladder() qubit[4]:q {

  h q[0];

  h q[1];

  cx q[0], q[1];

  cx q[1], q[2];

  cx q[2], q[3];

}

def cnot_ladder_inv() qubit[4]:q {

  cx q[2], q[3];

  cx q[1], q[2];

  cx q[0], q[1];

  h q[1];

  h q[0];

}

qubit q[4];

double theta = 0.01;

for i in [0:100] {

  cnot_ladder q;

  rz(theta) q[3];

  cnot_ladder_inv q;

}

)#";

  auto llvm =

      qcor::mlir_compile(src, "test_kernel", qcor::OutputType::LLVMIR, false);

  std::cout << "LLVM:\n" << llvm << "\n";

  // Get the main kernel section only 

  llvm = llvm.substr(llvm.find("@__internal_mlir_test_kernel"));

  const auto last = llvm.find_first_of("}");

  llvm = llvm.substr(0, last + 1);

  std::cout << "LLVM:\n" << llvm << "\n";

  // Only a single Rz remains (combine all angles)

  // 2 Hadamard before + 3 CX before

  // 2 Hadamard after + 3 CX after

  EXPECT_EQ(countSubstring(llvm, "__quantum__qis"), 11);

  EXPECT_EQ(countSubstring(llvm, "__quantum__qis__rz"), 1);

  EXPECT_EQ(countSubstring(llvm, "__quantum__qis__h"), 4);

  EXPECT_EQ(countSubstring(llvm, "__quantum__qis__cnot"), 6);

}

int main(int argc, char **argv) {

  ::testing::InitGoogleTest(&argc, argv);

  auto ret = RUN_ALL_TESTS();