[PATCH] D133683: [c++] implements tentative DR1432 for partial ordering of function template

[Yuanfang Chen via Phabricator via cfe-commits]

ychen created this revision.
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D128745 <https://reviews.llvm.org/D128745> handled DR1432 for the partial ordering of partial specializations, but
missed the handling for the partial ordering of function templates. This patch
implements the latter. While at it, also simplies the previous implementation to
be more close the wording without funtional changes.

Fixes https://github.com/llvm/llvm-project/issues/56090


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D133683

Files:
  clang/lib/Sema/SemaTemplateDeduction.cpp
  clang/test/CXX/drs/dr6xx.cpp

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