Chandler Carruth 72c3b07dfd [x86] Fix terrible bugs everywhere in the new vector shuffle lowering ... and in the target shuffle combining when trying to widen vector elements. Previously only one of these was correct, and we didn't correctly propagate zeroing target shuffle masks (which have a different sentinel value from undef in non- target shuffle masks now). This isn't just a missed optimization, this caused us to drop zeroing shuffles on the floor and miscompile code. The added test case is one example of that. There are other fixes to the test suite as a consequence of this as well as restoring the undef elements in some of the masks that were lost when I brought sanity to the actual *value* of the undef and zero sentinels. I've also just cleaned up some of the PSHUFD and PSHUFLW and PSHUFHW combining code, but that code really needs to go. It was a nice initial attempt, but it isn't very principled and the recursive shuffle combiner is much more powerful. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218562 91177308-0d34-0410-b5e6-96231b3b80d8		2014-09-27 04:42:44 +00:00
..
Analysis
Assembler
Bindings
Bitcode	Ensure bitcode encoding stays stable.	2014-09-23 08:48:01 +00:00
BugPoint
CodeGen	[x86] Fix terrible bugs everywhere in the new vector shuffle lowering	2014-09-27 04:42:44 +00:00
DebugInfo	Removing empty tests from failed revert	2014-09-24 21:45:26 +00:00
ExecutionEngine
Feature
FileCheck
Instrumentation	[asan] don't instrument module CTORs that may be run before asan.module_ctor. This fixes asan running together -coverage	2014-09-24 22:41:55 +00:00
Integer
JitListener
Linker
LTO
MC	Object: BSS/virtual sections don't have contents	2014-09-26 22:32:16 +00:00
Object
Other
TableGen	Fix TableGen -gen-disassembler output for bit fields with an offset.	2014-09-27 04:38:02 +00:00
tools	Update llvm-objdump’s Mach-O symbolizer code to print the name of symbol stubs.	2014-09-26 22:20:44 +00:00
Transforms	[IndVar] Don't widen loop compare unless IV user is sign extended.	2014-09-26 20:05:35 +00:00
Unit
Verifier
YAMLParser
.clang-format
CMakeLists.txt
lit.cfg	pass environment when invoking llvm-config from lit.cfg	2014-09-24 18:37:48 +00:00
lit.site.cfg.in
Makefile
Makefile.tests
TestRunner.sh