Juergen Ributzka 50fa2ff5d2 [AArch64] Don't optimize all compare instructions. ... "optimizeCompareInstr" converts compares (cmp/cmn) into plain sub/add instructions when the flags are not used anymore. This conversion is valid for most instructions, but not all. Some instructions that don't set the flags (e.g. sub with immediate) can set the SP, whereas the flag setting version uses the same encoding for the "zero" register. Update the code to also check for the return register before performing the optimization to make sure that a cmp doesn't suddenly turn into a sub that sets the stack pointer. I don't have a test case for this, because it isn't easy to trigger. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222255 91177308-0d34-0410-b5e6-96231b3b80d8		2014-11-18 21:02:40 +00:00
..
Analysis	ScalarEvolution: Construct SCEVDivision's Derived type instead of itself	2014-11-17 11:27:45 +00:00
AsmParser	X86: Implement the vectorcall calling convention	2014-10-28 01:29:26 +00:00
Bitcode	Pass a reference to ValueEnumerator.	2014-11-17 20:06:27 +00:00
CodeGen	Fix an incorrect chain operand when expanding INSERT_VECTOR operations through the stack.	2014-11-18 20:50:19 +00:00
DebugInfo	[dwarfdump] Handle relocations in Dwarf accelerator tables	2014-11-14 19:30:08 +00:00
ExecutionEngine	Fix covered switch warning	2014-11-18 01:26:46 +00:00
IR	IR: Sink MDNode::Hash down to GenericMDNode::Hash	2014-11-18 02:20:29 +00:00
IRReader	Remove unused variable. NFC.	2014-11-06 23:16:57 +00:00
LineEditor
Linker	Factor common code it Linker::init.	2014-11-17 20:51:01 +00:00
LTO	libLTO: Assert if LTOCodeGenerator and LTOModule are from different contexts	2014-11-11 23:13:10 +00:00
MC	COFF: Add support for Dwarf accelerator tables.	2014-11-14 20:33:40 +00:00
Object	Support ELF files of unknown type.	2014-11-18 01:14:25 +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	Support ELF files of unknown type.	2014-11-18 01:14:25 +00:00
TableGen	Eliminate some deep std::vector copies. NFC.	2014-10-03 18:33:16 +00:00
Target	[AArch64] Don't optimize all compare instructions.	2014-11-18 21:02:40 +00:00
Transforms	[Reassociate] Rename local variable to not use same name as a member	2014-11-18 20:21:54 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile