Helena Kotas db279c72f2 [HLSL] Change default linkage of HLSL functions to internal (#95331) ...

An HLSL function has internal linkage by default unless it is:
1. shader entry point function
2. marked with the `export` keyword
(https://github.com/llvm/llvm-project/issues/92812)
3. patch constant function (not implemented yet)

This PR adds a link-time pass `DXILFinalizeLinkage` that updates the
linkage of functions to make sure only shader entry points and exported
functions are visible from the module (have _program linkage_). All
other functions will be updated to have internal linkage.

Related spec update: microsoft/hlsl-specs#295

Fixes #llvm/llvm-project#92071

2024-08-16 10:32:10 -07:00

1.9 KiB

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