Ulrich Weigand fa80642205 Allow targets to define minimum alignment for global variables ... This patch adds a new common code feature that allows platform code to request minimum alignment of global symbols. The background for this is that on SystemZ, the most efficient way to load addresses of global symbol is the LOAD ADDRESS RELATIVE LONG (LARL) instruction. This instruction provides PC-relative addressing, but only to *even* addresses. For this reason, existing compilers will guarantee that global symbols are always aligned to at least 2. [ Since symbols would otherwise already use a default alignment based on their type, this will usually only affect global objects of character type or character arrays. ] GCC also allows creating symbols without that extra alignment by using explicit "aligned" attributes (which then need to be used on both definition and each use of the symbol). To enable support for this with Clang, this patch adds a TargetInfo::MinGlobalAlign variable that provides a global minimum for the alignment of every global object (unless overridden via explicit alignment attribute), and adds code to respect this setting. Within this patch, no platform actually sets the value to anything but the default 1, resulting in no change in behaviour on any existing target. This version of the patch incorporates feedback from reviews by Eric Christopher and John McCall. Thanks to all reviewers! Patch by Richard Sandiford. llvm-svn: 181210		2013-05-06 16:23:57 +00:00
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Builtins.cpp	Revert r170500. It over-zealously converted *ALL* things named Attributes, which is wrong here.	2012-12-20 19:22:21 +00:00
CMakeLists.txt	<rdar://problem/13358795> Teach CMake to check Subversion version information at build time, not configure time.	2013-03-25 23:16:38 +00:00
CharInfo.cpp	CharInfo: Add missing "using namespace clang::charinfo" in .cpp file.	2013-02-08 22:37:49 +00:00
Diagnostic.cpp	Revert r177218.	2013-05-03 23:20:27 +00:00
DiagnosticIDs.cpp	Fix typos: [Dd]iagnosic -> [Dd]iagnostic	2013-03-01 21:41:22 +00:00
FileManager.cpp	<limits.h> includes <linux/limits.h> on Linux, no need to special-case it	2013-01-26 16:29:36 +00:00
FileSystemStatCache.cpp	Extend stat query APIs to explicitly specify if the query is for	2012-12-11 07:48:23 +00:00
IdentifierTable.cpp	[Modules] Use global index to improve typo correction performance	2013-04-17 22:10:55 +00:00
LangOptions.cpp	Add a *San + modules FIXME.	2013-02-07 01:09:29 +00:00
Makefile	Use tabs instead of spaces.	2012-03-02 16:06:37 +00:00
Module.cpp	<rdar://problem/12368093> Extend module maps with a 'conflict' declaration, and warn when a newly-imported module conflicts with an already-imported module.	2013-03-20 21:10:35 +00:00
ObjCRuntime.cpp	Add the ObjFW runtime. Patch by Jonathan Schleifer!	2012-07-12 02:07:58 +00:00
OpenMPKinds.cpp	Fix a layering violation introduced in r177705.	2013-03-25 21:32:02 +00:00
OperatorPrecedence.cpp	s/CPlusPlus0x/CPlusPlus11/g	2013-01-02 11:42:31 +00:00
SourceLocation.cpp	PR14581: Make SourceLocation::printToString work, or it will always return an empty string.	2012-12-12 14:17:17 +00:00
SourceManager.cpp	Introduce SourceManager::getDecomposedIncludedLoc, that returns the "included/expanded in" decomposed location of the given FileID.	2013-04-13 01:03:57 +00:00
TargetInfo.cpp	Allow targets to define minimum alignment for global variables	2013-05-06 16:23:57 +00:00
Targets.cpp	AArch64: teach Clang about __clear_cache intrinsic	2013-05-04 07:15:13 +00:00
TokenKinds.cpp	Sort all of Clang's files under 'lib', and fix up the broken headers	2012-12-04 09:13:33 +00:00
Version.cpp	<rdar://problem/13358795> Teach CMake to check Subversion version information at build time, not configure time.	2013-03-25 23:16:38 +00:00
VersionTuple.cpp	Include llvm::Optional in clang/Basic/LLVM.h	2013-02-20 22:23:23 +00:00