This is an archive of the discontinued LLVM Phabricator instance.

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	Some of the major new features and improvements to Clang are listed			Some of the major new features and improvements to Clang are listed
	here. Generic improvements to Clang as a whole or to its underlying			here. Generic improvements to Clang as a whole or to its underlying
	infrastructure are described first, followed by language-specific			infrastructure are described first, followed by language-specific
	sections with improvements to Clang's support for those languages.			sections with improvements to Clang's support for those languages.

	Major New Features			Major New Features
	------------------			------------------

	- ...			- Clang now supports the ``-fzero-call-used-regs`` feature for x86. The purpose
				of this feature is to limit Return-Oriented Programming (ROP) exploits and
				information leakage. It works by zeroing out a selected class of registers
				before function return --- e.g., all GPRs that are used within the function.
				There is an analogous ``zero_call_used_regs`` attribute to allow for finer
				control of this feature.

	Improvements to Clang's diagnostics			Improvements to Clang's diagnostics
	^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

	Non-comprehensive list of changes in this release			Non-comprehensive list of changes in this release
	-------------------------------------------------			-------------------------------------------------

	New Compiler Flags			New Compiler Flags
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This is an archive of the discontinued LLVM Phabricator instance.

Insert a blurb about the -fzero-call-used-regs featureClosedPublic

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clang/docs/ReleaseNotes.rst

Insert a blurb about the -fzero-call-used-regs feature
ClosedPublic