[clang] [llvm] [mlir] [AMDGPU] Add the support for 45-bit buffer resource (PR #159702)

[Krzysztof Drewniak via llvm-commits]

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@@ -1431,7 +1431,7 @@ def int_amdgcn_make_buffer_rsrc : DefaultAttrsIntrinsic <
   [llvm_anyptr_ty],
   [llvm_anyptr_ty, // base
    llvm_i16_ty,    // stride (and swizzle control)
-   llvm_i32_ty,    // NumRecords / extent
+   llvm_i64_ty,    // NumRecords / extent
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krzysz00 wrote:

I'd argue this should be variadic - either `i32` or `i64` - so that we don't have to do truncations

https://github.com/llvm/llvm-project/pull/159702