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[TEST] Move llvm import test away from minimum test #9171

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Oct 1, 2021
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Original file line number Diff line number Diff line change
Expand Up @@ -65,43 +65,3 @@ def check_llvm():
tvm.testing.assert_allclose(c.numpy(), a.numpy() + b.numpy())

check_llvm()


@tvm.testing.requires_llvm
def test_llvm_import():
"""all-platform-minimal-test: check shell dependent clang behavior."""
# extern "C" is necessary to get the correct signature
cc_code = """
extern "C" float my_add(float x, float y) {
return x + y;
}
"""
n = 10
A = te.placeholder((n,), name="A")
B = te.compute(
(n,), lambda *i: tvm.tir.call_pure_extern("float32", "my_add", A(*i), 1.0), name="B"
)

def check_llvm(use_file):
if not clang.find_clang(required=False):
print("skip because clang is not available")
return
temp = utils.tempdir()
ll_path = temp.relpath("temp.ll")
ll_code = clang.create_llvm(cc_code, output=ll_path)
s = te.create_schedule(B.op)
if use_file:
s[B].pragma(s[B].op.axis[0], "import_llvm", ll_path)
else:
s[B].pragma(s[B].op.axis[0], "import_llvm", ll_code)
# BUILD and invoke the kernel.
f = tvm.build(s, [A, B], "llvm")
dev = tvm.cpu(0)
# launch the kernel.
a = tvm.nd.array(np.random.uniform(size=n).astype(A.dtype), dev)
b = tvm.nd.array(np.random.uniform(size=n).astype(B.dtype), dev)
f(a, b)
tvm.testing.assert_allclose(b.numpy(), a.numpy() + 1.0)

check_llvm(use_file=True)
check_llvm(use_file=False)
40 changes: 40 additions & 0 deletions tests/python/unittest/test_target_codegen_llvm.py
Original file line number Diff line number Diff line change
Expand Up @@ -845,5 +845,45 @@ def make_call_extern(caller, callee):
assert matches == sorted(matches)


@tvm.testing.requires_llvm
def test_llvm_import():
"""all-platform-minimal-test: check shell dependent clang behavior."""
# extern "C" is necessary to get the correct signature
cc_code = """
extern "C" float my_add(float x, float y) {
return x + y;
}
"""
n = 10
A = te.placeholder((n,), name="A")
B = te.compute(
(n,), lambda *i: tvm.tir.call_pure_extern("float32", "my_add", A(*i), 1.0), name="B"
)

def check_llvm(use_file):
if not clang.find_clang(required=False):
print("skip because clang is not available")
return
temp = utils.tempdir()
ll_path = temp.relpath("temp.ll")
ll_code = clang.create_llvm(cc_code, output=ll_path)
s = te.create_schedule(B.op)
if use_file:
s[B].pragma(s[B].op.axis[0], "import_llvm", ll_path)
else:
s[B].pragma(s[B].op.axis[0], "import_llvm", ll_code)
# BUILD and invoke the kernel.
f = tvm.build(s, [A, B], "llvm")
dev = tvm.cpu(0)
# launch the kernel.
a = tvm.nd.array(np.random.uniform(size=n).astype(A.dtype), dev)
b = tvm.nd.array(np.random.uniform(size=n).astype(B.dtype), dev)
f(a, b)
tvm.testing.assert_allclose(b.numpy(), a.numpy() + 1.0)

check_llvm(use_file=True)
check_llvm(use_file=False)


if __name__ == "__main__":
sys.exit(pytest.main([__file__] + sys.argv[1:]))