[TVMScript] Enable Safe Autocasting in BufferStore #13960
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Hzfengsy
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Please update the PR description and we can get it in
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I will tweak it a bit by adding some more warning messages today and ping you guys back tomorrow |
Previously, when writing a BufferStore statement in TVMScript, dtype mismatch will not be detected but silently allowed. For example, in the snippet below: ```python buffer[indices] = RHS ``` even if the elements of `buffer` is floating point numbers, while RHS is a handle, there is no mechanism to warn, fix, or error out. This PR introduces auto casting mechanism in TVMScript to ensure that the dtype of RHS matches LHS. When there is possible precision loss, it will emit a warning so that the users could adjust accordingly.
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@Hzfengsy @MasterJH5574 I added an extra warning when there is potential precision loss, for example, casting floating point numbers to integers. It should be good to go |
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Previously, when writing a BufferStore statement in TVMScript, dtype
mismatch will not be detected but silently allowed.
For example, in the snippet below:
even if the elements of
bufferis floating point numbers, while RHSis a handle, there is no mechanism to warn, fix, or error out.
This PR introduces auto casting mechanism in TVMScript to ensure that
the dtype of RHS matches LHS. When there is possible precision loss, it
will emit a warning so that the users could adjust accordingly.