khaki3 7d166fa384 [flang][cuda] Correct the number of blocks when setting the grid to * (#121000) ...

We set the `gridX` argument of `_FortranACUFLaunchKernel` to `-1` when
`*` is passed to the grid parameter. We store it in one of `dim3`
members. However, `dim3` members are unsigned, so positive-value checks
we use later, such as `gridDim.x > 0`, are invalid. This PR utilizes the
original gird-size arguments to compute the number of blocks.

2024-12-23 17:14:38 -08:00

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