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This reverts r358409, which I think broke the bots in compiler-rt.
Since I'm having trouble reproducing the failure, I'm reverting this
until I can investigate locally.
llvm-svn: 358437
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Summary:
In r350649, I changed aligned allocation from being available starting
in macosx10.13 to macosx10.14. However, aligned allocation is indeed
available starting with macosx10.13, my investigation had been based
on the wrong libc++abi dylib.
This means that Clang before the fix will be more stringent when it
comes to aligned allocation -- it will not allow it when back-deploying
to macosx 10.13, when it would actually be safe to do so.
Note that a companion change will be coming to fix the libc++ tests.
Reviewers: ahatanak
Subscribers: jkorous, dexonsmith, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D60626
llvm-svn: 358409
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Summary:
r306722 added diagnostics when aligned allocation is used with deployment
targets that do not support it, but the first macosx supporting aligned
allocation was incorrectly set to 10.13. In reality, the dylib shipped
with macosx10.13 does not support aligned allocation, but the dylib
shipped with macosx10.14 does.
Reviewers: ahatanak
Subscribers: christof, jkorous, dexonsmith, cfe-commits
Differential Revision: https://reviews.llvm.org/D56445
llvm-svn: 350649
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Libc++ needs to know when aligned allocation is supported by clang, but is
otherwise unavailable at link time. Otherwise, libc++ will incorrectly end up
generating calls to `__builtin_operator_new`/`__builtin_operator_delete` with
alignment arguments.
This patch implements the following changes:
* The `__cpp_aligned_new` feature test macro to no longer be defined when
aligned allocation is otherwise enabled but unavailable.
* The Darwin driver no longer passes `-faligned-alloc-unavailable` when the
user manually specifies `-faligned-allocation` or `-fno-aligned-allocation`.
* Instead of a warning Clang now generates a hard error when an aligned
allocation or deallocation function is referenced but unavailable.
Patch by Eric Fiselier.
Reviewers: rsmith, vsapsai, erik.pilkington, ahatanak, dexonsmith
Reviewed By: rsmith
Subscribers: Quuxplusone, cfe-commits
Differential Revision: https://reviews.llvm.org/D45015
llvm-svn: 338934
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OS instead of inferring it from SDK / environment
The OS version is specified in -target should be used instead of the one in an
environment variable / SDK name.
rdar://35813850
Differential Revision: https://reviews.llvm.org/D40998
llvm-svn: 321099
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a c++17 aligned allocation/deallocation function that is unavailable in
the standard library on Apple platforms.
The aligned functions are implemented only in the following versions or
later versions of the OSes, so clang issues diagnostics if the deployment
target being targeted is older than these:
macosx: 10.13
ios: 11.0
tvos: 11.0
watchos: 4.0
The diagnostics are issued whenever the aligned functions are selected
except when the selected function has a definition in the same file.
If there is a user-defined function available somewhere else, option
-Wno-aligned-allocation-unavailable can be used to silence the
diagnostics.
rdar://problem/32664169
Differential Revision: https://reviews.llvm.org/D34574
llvm-svn: 306722
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