tra added a subscriber: majnemer.
tra added a comment.
In D77777#1975178 <https://reviews.llvm.org/D77777#1975178>, @hliao wrote:
> the 1st argument in `llvm.nvvm.texsurf.hande.internal` or the 2nd one in
> `llvm.nvvm.texsurf.handle` must be kept as an immediate or constant value,
> i.e. that global variable. However, optimizations will find common code in
> the following
>
> if (cond) {
> %hnd = texsurf.handle.internal(@tex1);
> } else {
> %hnd = texsurf.handle.internal(@tex2)
> }
> = use(%hnd)
>
>
> and hoist or sink it into
>
> if (cond) {
> %ptr = @tex1;
> } else {
> %ptr = @tex2;
> }
> %hnd = texsurf.handle.intenal(%ptr);
> = use(%hnd)
>
>
> The backend cannot handle non immediate operand in `texsurf.handle`. The
> similar thing happens to `read.register` as well as it also assumes its
> argument is always an immediate value.
I wonder if we can use `token` types to represent the handle?
https://reviews.llvm.org/D11861
@majnemer -- would this use case be suitable for the `token` type?
Repository:
rG LLVM Github Monorepo
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https://reviews.llvm.org/D77777/new/
https://reviews.llvm.org/D77777
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