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4 Commits

Author SHA1 Message Date
Michael Spencer 64788d7d53 [clang] Include missing LangOpts in `getModuleHash`. 
`ObjCRuntime` and `CommentOpts.BlockCommandNames` are checked by
`ASTReader::checkLanguageOptions`, but are not part of the module
context hash. This can lead to errors when using implicit modules if
different TUs have different values for these options when using the
same module cache.

This was not hit very often due to the rare usage of
`-fblock-command-names=` and that `ObjCRuntime` is by default set by
the target triple, which is part of the existing context hash.
 2020-07-07 17:13:23 -06:00
Michael J. Spencer 8896d073b1 [Implicit Modules] Add -cc1 option -fmodules-strict-context-hash which includes search paths and diagnostics. 
This is a recommit of r375322 and r375327 with a fix for the Windows test breakage.

llvm-svn: 375466
 2019-10-21 22:51:13 +00:00
Michael J. Spencer 81a01e73fa Revert "[Implicit Modules] Add -cc1 option -fmodules-strict-context-hash which includes search paths and diagnostics." and "[Docs] Fix header level." 
The test doesn't work on Windows. I'll fix it and recommit later.

llvm-svn: 375338
 2019-10-19 09:45:28 +00:00
Michael J. Spencer 14a3f77ba1 [Implicit Modules] Add -cc1 option -fmodules-strict-context-hash which includes search paths and diagnostics. 
Differential Revision: https://reviews.llvm.org/D68528

llvm-svn: 375322
 2019-10-19 01:36:37 +00:00