PR for llvm/llvm-project#64289 #556
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For checking the readonly attribute. Pre-commit test for D156793. Reviewed By: nikic Differential Revision: https://reviews.llvm.org/D156789 (cherry picked from commit b77e556)
When eliminating a tail call, we modify the values of the arguments. Therefore, if the byval parameter has a readonly attribute, we have to remove it. It is safe because, from the perspective of a caller, the byval parameter is always treated as "readonly," even if the readonly attribute is removed. Fixes #64289. Reviewed By: nikic Differential Revision: https://reviews.llvm.org/D156793 (cherry picked from commit c3f227e)
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LGTM |
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resolves llvm/llvm-project#64289