Chandler Carruth 1d02acb7a0 [x86] Remove the 2-addr-to-3-addr "optimization" from shufps to pshufd. ... This trades a (register-renamer-friendly) movaps for a floating point / integer domain cross. That is a very bad trade, even on architectures where domain crossing is relatively fast. On any chip where there is even a cycle stall, this is a Very Bad Idea. It doesn't even seem likely to cause a spill to be introduced because the reason for the copy is to destructively shuffle in place. Thanks to Ben Kramer for fixing a bug in this code that my new shuffle lowering exposed and highlighting that perhaps it should just go away. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219090 91177308-0d34-0410-b5e6-96231b3b80d8		2014-10-05 22:57:31 +00:00
..
Analysis	Simplify code. No functionality change.	2014-10-05 12:21:57 +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	[x86, dag] Teach the DAG combiner to prune inputs toa vector_shuffle	2014-10-05 19:14:34 +00:00
DebugInfo	Remove unnecessary copying or replace it with moves in a bunch of places.	2014-10-04 16:55:56 +00:00
ExecutionEngine	[MCJIT] Don't crash in debugging output for sections that aren't emitted.	2014-10-01 21:57:47 +00:00
IR	Revert "Revert "DI: Fold constant arguments into a single MDString""	2014-10-03 20:01:09 +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	MCParser: Modernize memory handling.	2014-10-03 18:32:55 +00:00
Object	llvm-readobj: print out the fields of the COFF delay-import table	2014-10-03 18:07:18 +00:00
Option	Add an overload of getLastArgNoClaim taking two OptSpecifiers.	2014-09-12 19:42:53 +00:00
ProfileData	Eliminate some deep std::vector copies. NFC.	2014-10-03 18:33:16 +00:00
Support	Converting the ErrorHandlerMutex to a ManagedStatic to avoid the static constructor and destructor.	2014-10-03 22:03:12 +00:00
TableGen	Eliminate some deep std::vector copies. NFC.	2014-10-03 18:33:16 +00:00
Target	[x86] Remove the 2-addr-to-3-addr "optimization" from shufps to pshufd.	2014-10-05 22:57:31 +00:00
Transforms	[InstCombine] Simplify the logic from r219067 using ValueTracking	2014-10-05 00:53:02 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile