lixiaoquan opened a new pull request #5795:
URL: https://github.com/apache/incubator-tvm/pull/5795
For this function:
```
fn (%True: Tensor[(?, 1), float32], %False: Tensor[(?, ?), float32]) {
free_var %f: fn () -> bool
%0 = %f();
if (%0) {
%True
} else {
%False
}
}
```
Original type inference result:
```
fn (%True: Tensor[(?, ?), float32], %False: Tensor[(?, ?), float32], %f: fn
() -> bool) -> Tensor[(?, ?), float32] {
%0 = %f() /* ty=bool */;
if (%0) {
%True
} else {
%False
}
}
```
Type inference result with this patch, which keeps the fixed dim
```
fn (%True: Tensor[(?, 1), float32], %False: Tensor[(?, 1), float32], %f: fn
() -> bool) -> Tensor[(?, 1), float32] {
%0 = %f() /* ty=bool */;
if (%0) {
%True
} else {
%False
}
}
```
cc @icemelon9 @kevinthesun @zhiics Could you please review?
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