ZihengJiang opened a new pull request #7084:
URL: https://github.com/apache/tvm/pull/7084
This PR supports building TIR function directly and allows TIR returns value
directly.
Current approach is by adding an intrinsic for `return`. Example:
```python
def add():
a = tir.Var("a", "float32")
b = tir.Var("b", "float32")
c = a + b
c = tir.call_intrin("float32", "tir.myreturn", c)
c = tir.Evaluate(c)
func = tir.PrimFunc([a, b], c)
mod = tvm.IRModule({'add': func})
func = tvm.build(mod['add'])
out = func(1.0, 2.0)
print(out)
```
In the future, with the tvm script, we should be able to write some like:
```python
@tvm.script
def add(a, b):
tir.myreturn(a + b)
```
There are two things need to be discussed:
- Because `return` is a keyword in Python, currently I use `myreturn`, we
should have another name for it.
- Whether we should support multiple `return` in a single function.
@tqchen @junrushao1994 @areusch
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