Sanjay Patel 28660d4b2f Add a feature flag for slow 32-byte unaligned memory accesses [x86]. ... This patch adds a feature flag to avoid unaligned 32-byte load/store AVX codegen for Sandy Bridge and Ivy Bridge. There is no functionality change intended for those chips. Previously, the absence of AVX2 was being used as a proxy to detect this feature. But that hindered codegen for AVX-enabled AMD chips such as btver2 that do not have the 32-byte unaligned access slowdown. Performance measurements are included in PR21541 ( http://llvm.org/bugs/show_bug.cgi?id=21541 ). Differential Revision: http://reviews.llvm.org/D6355 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222544 91177308-0d34-0410-b5e6-96231b3b80d8		2014-11-21 17:40:04 +00:00
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Analysis	AliasSet: Simplify mergeSetIn	2014-11-19 19:36:18 +00:00
AsmParser	Update SetVector to rely on the underlying set's insert to return a pair<iterator, bool>	2014-11-19 07:49:26 +00:00
Bitcode	Add accessor marcos to ConstantPlaceHolder, similar to those in the base class.	2014-11-21 02:42:08 +00:00
CodeGen	[DAG] Teach how to turn a build_vector into a shuffle if some of the operands are zero.	2014-11-21 14:32:06 +00:00
DebugInfo	Make DWARFAcceleratorTable::dump() const.	2014-11-20 16:21:11 +00:00
ExecutionEngine	[MCJIT] Remove JITEventListener::NotifyFreeingMachineCode. This method is dead	2014-11-21 01:57:09 +00:00
IR	Add curly braces to workaround an MSVC bug.	2014-11-21 01:19:09 +00:00
IRReader	Remove unused variable. NFC.	2014-11-06 23:16:57 +00:00
LineEditor
Linker	Update SetVector to rely on the underlying set's insert to return a pair<iterator, bool>	2014-11-19 07:49:26 +00:00
LTO	Remove StringMap::GetOrCreateValue in favor of StringMap::insert	2014-11-19 05:49:42 +00:00
MC	Revert "Allow FDE references outside the +/-2GB range supported by PC relative offsets for code models other than small/medium. For JIT application, memory layout is less controlled and can result in truncations otherwise."	2014-11-21 17:21:18 +00:00
Object	llvm-readobj: fix off-by-one error in COFFDumper	2014-11-19 02:07:10 +00:00
Option	Add an overload of getLastArgNoClaim taking two OptSpecifiers.	2014-09-12 19:42:53 +00:00
ProfileData	llvm-cov: Sink some reporting logic into CoverageMapping	2014-11-14 01:50:32 +00:00
Support	Remove support for undocumented SpecialCaseList entries.	2014-11-20 01:27:19 +00:00
TableGen	Eliminate some deep std::vector copies. NFC.	2014-10-03 18:33:16 +00:00
Target	Add a feature flag for slow 32-byte unaligned memory accesses [x86].	2014-11-21 17:40:04 +00:00
Transforms	[asan] Add new hidden compile-time flag asan-instrument-allocas to sanitize variable-sized dynamic allocas. Patch by Max Ostapenko.	2014-11-21 10:29:50 +00:00
CMakeLists.txt
LLVMBuild.txt
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