Bradley Smith 7e67a4b0cb [AArch64] Add workaround for Cortex-A53 erratum (835769) ... Some early revisions of the Cortex-A53 have an erratum (835769) whereby it is possible for a 64-bit multiply-accumulate instruction in AArch64 state to generate an incorrect result. The details are quite complex and hard to determine statically, since branches in the code may exist in some circumstances, but all cases end with a memory (load, store, or prefetch) instruction followed immediately by the multiply-accumulate operation. The safest work-around for this issue is to make the compiler avoid emitting multiply-accumulate instructions immediately after memory instructions and the simplest way to do this is to insert a NOP. This patch implements such work-around in the backend, enabled via the option -aarch64-fix-cortex-a53-835769. The work-around code generation is not enabled by default. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219603 91177308-0d34-0410-b5e6-96231b3b80d8		2014-10-13 10:12:35 +00:00
..
Analysis	[modules] Stop excluding Support/Debug.h from the Support module. This header	2014-10-13 00:41:03 +00:00
AsmParser	Make CallingConv::ID an alias of "unsigned".	2014-09-10 18:00:17 +00:00
Bitcode	Do not destroy external linkage when deleting function body	2014-09-23 12:54:19 +00:00
CodeGen	Modernize old-style static asserts. NFC.	2014-10-12 17:56:40 +00:00
DebugInfo	Add couple of missing 'override' keyword. NFC.	2014-10-10 17:34:30 +00:00
ExecutionEngine	[MCJIT] Replace memcpy with readBytesUnaligned in RuntimeDyldMachOI386.	2014-10-10 23:07:09 +00:00
IR	Return undef on FP <-> Int conversions that overflow (PR21330).	2014-10-10 23:00:21 +00:00
IRReader	Pass a && to getLazyBitcodeModule.	2014-09-03 17:31:46 +00:00
LineEditor
Linker	Merge alignment of common GlobalValue.	2014-09-09 17:48:18 +00:00
LTO	LTO: Document the Boolean argument from r218784	2014-10-02 21:11:04 +00:00
MC	MC: Shrink MCSymbolRefExpr by only storing the bits we need.	2014-10-11 17:57:27 +00:00
Object	Object, COFF: Move the VirtualSize/SizeOfRawData logic to getSectionSize	2014-10-09 08:42:31 +00:00
Option	Add an overload of getLastArgNoClaim taking two OptSpecifiers.	2014-09-12 19:42:53 +00:00
ProfileData	Reduce double set lookups. NFC.	2014-10-10 15:32:50 +00:00
Support	Unix/Signals.inc: Let findModulesAndOffsets() built conditionally regarding to (defined(HAVE_BACKTRACE) && defined(ENABLE_BACKTRACES)). [-Wunused-function]	2014-10-13 04:32:43 +00:00
TableGen	Eliminate some deep std::vector copies. NFC.	2014-10-03 18:33:16 +00:00
Target	[AArch64] Add workaround for Cortex-A53 erratum (835769)	2014-10-13 10:12:35 +00:00
Transforms	Revert r219223, it creates invalid PHI nodes.	2014-10-12 17:16:04 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile