[PATCH] D25001: [Module] Merge function prototype with a non-prototype function declaration

[Akira Hatanaka via Phabricator via cfe-commits]

ahatanak updated this revision to Diff 92742.
ahatanak added a comment.

Update patch.

1. In isSameEntity, call typesAreCompatible instead of hasSameType so that non-prototype function declarations are merged with function prototypes.
2. Define a function (mergeCompatibleFunctionDecls) that changes the type of non-prototype functions declarations and adds parameters.
3. Make hasSameOverloadableAttrs check the presence of noreturn function attributes. Without this change, test/Modules/redecl-merge.m would fail after making the changes in 1.
4. Add a test case that declares a non-prototype declaration in the header and function prototype in the .c file.


https://reviews.llvm.org/D25001

Files:
  lib/Serialization/ASTReaderDecl.cpp
  test/Modules/Inputs/merge-non-prototype-fn/header2.h
  test/Modules/Inputs/merge-non-prototype-fn/module.map
  test/Modules/merge-non-prototype-fn.c

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