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Chapter 5. Changes in LLVM Toolset
LLVM Toolset has been updated from version 13.0.1 to 14.0.6 on RHEL 7, RHEL 8, and RHEL 9.
Notable changes include:
clang
changes:
-
'if consteval'
forC++2b
is now implemented. -
On 64-bit x86, support for
AVX512-FP16
instructions has been added. -
Completed support of OpenCL C 3.0 and
C++
for OpenCL 2021 at experimental state. -
The
-E -P
preprocessor output now always omits blank lines, matching GCC behavior. Previously, up to 8 consecutive blank lines could appear in the output. -
Support
-Wdeclaration-after-statement
withC99
and later standards, and not just C89, matching GCC’s behavior. A notable use case is supporting style guides that forbid mixing declarations and code, but want to move to newer C standards.
For detailed information regarding the updates, see the upstream LLVM 14.0.0 Release Notes.