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llvm-project/clang/lib/Frontend
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Volodymyr Sapsai e5015abf18 [Preprocessor] Allow libc++ to detect when aligned allocation is unavailable. 
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
 		2018-08-03 23:12:37 +00:00
..
Rewrite Remove trailing space 2018-07-30 19:24:48 +00:00
ASTConsumers.cpp Remove trailing space 2018-07-30 19:24:48 +00:00
ASTMerge.cpp Remove trailing space 2018-07-30 19:24:48 +00:00
ASTUnit.cpp [ASTImporter] Corrected diagnostic client handling in tests. 2018-06-15 06:45:39 +00:00
CMakeLists.txt Use special new Clang flag 'FrontendTimesIsEnabled' instead of 'llvm::TimePassesIsEnabled' inside -ftime-report feature. 2018-04-23 09:22:30 +00:00
CacheTokens.cpp Support: Simplify endian stream interface. NFCI. 2018-05-18 19:46:24 +00:00
ChainedDiagnosticConsumer.cpp
…
ChainedIncludesSource.cpp Remove trailing space 2018-07-30 19:24:48 +00:00
CodeGenOptions.cpp Use an enum value instead of a string. 2018-01-18 00:20:03 +00:00
CompilerInstance.cpp Remove trailing space 2018-07-30 19:24:48 +00:00
CompilerInvocation.cpp [OPENMP] Force OpenMP 4.5 when compiling for offloading. 2018-07-26 15:17:38 +00:00
CreateInvocationFromCommandLine.cpp Use vfs::FileSystem in ASTUnit when creating CompilerInvocation. 2017-06-28 15:06:34 +00:00
DependencyFile.cpp Remove trailing space 2018-07-30 19:24:48 +00:00
DependencyGraph.cpp Remove trailing space 2018-07-30 19:24:48 +00:00
DiagnosticRenderer.cpp Remove trailing space 2018-07-30 19:24:48 +00:00
FrontendAction.cpp Remove trailing space 2018-07-30 19:24:48 +00:00
FrontendActions.cpp Remove trailing space 2018-07-30 19:24:48 +00:00
FrontendOptions.cpp [Frontend] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC). 2018-03-26 21:45:04 +00:00
FrontendTiming.cpp Use special new Clang flag 'FrontendTimesIsEnabled' instead of 'llvm::TimePassesIsEnabled' inside -ftime-report feature. 2018-04-23 09:22:30 +00:00
HeaderIncludeGen.cpp [clang-cl] Print /showIncludes to stderr, if used in combination with /E, /EP or /P 2018-05-04 15:58:31 +00:00
InitHeaderSearch.cpp [frontend] Don't include the C++ stdlib for -x assembler-with-cpp 2018-06-28 23:23:45 +00:00
InitPreprocessor.cpp [Preprocessor] Allow libc++ to detect when aligned allocation is unavailable. 2018-08-03 23:12:37 +00:00
LangStandards.cpp Don't accept -std= values that would switch us to a different source language. 2017-04-26 23:44:33 +00:00
LayoutOverrideSource.cpp Remove trailing space 2018-07-30 19:24:48 +00:00
LogDiagnosticPrinter.cpp
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ModuleDependencyCollector.cpp Reland '[clang] Adding CharacteristicKind to PPCallbacks::InclusionDirective' 2018-05-10 19:05:36 +00:00
MultiplexConsumer.cpp Remove trailing space 2018-07-30 19:24:48 +00:00
PCHContainerOperations.cpp Remove \brief commands from doxygen comments. 2018-05-09 01:00:01 +00:00
PrecompiledPreamble.cpp [Preamble] Check system dependencies in preamble too 2018-07-09 09:07:01 +00:00
PrintPreprocessedOutput.cpp Remove trailing space 2018-07-30 19:24:48 +00:00
SerializedDiagnosticPrinter.cpp Remove trailing space 2018-07-30 19:24:48 +00:00
SerializedDiagnosticReader.cpp [Frontend] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC). 2018-03-26 21:45:04 +00:00
TestModuleFileExtension.cpp Remove trailing space 2018-07-30 19:24:48 +00:00
TestModuleFileExtension.h Module file extensions: pass a Sema through to the extension writer. 2015-12-08 22:43:32 +00:00
TextDiagnostic.cpp Remove trailing space 2018-07-30 19:24:48 +00:00
TextDiagnosticBuffer.cpp [Frontend] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC). 2018-03-22 00:53:26 +00:00
TextDiagnosticPrinter.cpp Remove \brief commands from doxygen comments. 2018-05-09 01:00:01 +00:00
VerifyDiagnosticConsumer.cpp Remove \brief commands from doxygen comments. 2018-05-09 01:00:01 +00:00