dcb1c6067c
Clang 8.0.0: Major New Features * Clang supports use of a profile remapping file, which permits profile data captured for one version of a program to be applied when building another version where symbols have changed (for example, due to renaming a class or namespace). See the UsersManual for details. * Clang has new options to initialize automatic variables with a pattern. The default is still that automatic variables are uninitialized. This isn’t meant to change the semantics of C and C++. Rather, it’s meant to be a last resort when programmers inadvertently have some undefined behavior in their code. These options aim to make undefined behavior hurt less, which security-minded people will be very happy about. * Improvements to Clang’s diagnostics Non-comprehensive list of changes in this release * The experimental feature Pretokenized Headers (PTH) was removed in its entirely from Clang. The feature did not properly work with about 1/3 of the possible tokens available and was unmaintained. * The internals of libc++ include directory detection on MacOS have changed. Instead of running a search based on the -resource-dir flag, the search is now based on the path of the compiler in the filesystem. The default behaviour should not change. However, if you override -resource-dir manually and rely on the old behaviour you will need to add appropriate compiler flags for finding the corresponding libc++ include directory. * The integrated assembler is used now by default for all MIPS targets. * Improved support for MIPS N32 ABI and MIPS R6 target triples. * Clang now includes builtin functions for bitwise rotation of common value sizes, such as: __builtin_rotateleft32 * Improved optimization for the corresponding MSVC compatibility builtins such as _rotl(). |
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