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| author | Jan Ole Hüser <j.hueser@beckhoff.de> | 2020-11-05 11:01:51 -0800 |
|---|---|---|
| committer | Reid Kleckner <rnk@google.com> | 2020-11-05 12:57:17 -0800 |
| commit | d2e7dca5ca92c655e451d6fcb806df38d7f2d56b (patch) | |
| tree | f4288cd1a41835b08252ea8b05a44dd948c18c26 /clang/lib/Frontend/CompilerInvocation.cpp | |
| parent | 1af037f643fc5499f83d92e5aec199950871d475 (diff) | |
| download | llvm-d2e7dca5ca92c655e451d6fcb806df38d7f2d56b.zip llvm-d2e7dca5ca92c655e451d6fcb806df38d7f2d56b.tar.gz llvm-d2e7dca5ca92c655e451d6fcb806df38d7f2d56b.tar.bz2 | |
[CodeGen] Fix Bug 47499: __unaligned extension inconsistent behaviour with C and C++
For the language C++ the keyword __unaligned (a Microsoft extension) had no effect on pointers.
The reason, why there was a difference between C and C++ for the keyword __unaligned:
For C, the Method getAsCXXREcordDecl() returns nullptr. That guarantees that hasUnaligned() is called.
If the language is C++, it is not guaranteed, that hasUnaligend() is called and evaluated.
Here are some links:
The Bug: https://bugs.llvm.org/show_bug.cgi?id=47499
Thread on the cfe-dev mailing list: http://lists.llvm.org/pipermail/cfe-dev/2020-September/066783.html
Diff, that introduced the check hasUnaligned() in getNaturalTypeAlignment(): https://reviews.llvm.org/D30166
Reviewed By: rnk
Differential Revision: https://reviews.llvm.org/D90630
Diffstat (limited to 'clang/lib/Frontend/CompilerInvocation.cpp')
0 files changed, 0 insertions, 0 deletions