Bruno Cardoso Lopes 3bde6fe0df Introduce a pass to insert vzeroupper instructions to avoid AVX to ... SSE transition penalty. The pass is enabled through the "x86-use-vzeroupper" llc command line option. This is only the first step (very naive and conservative one) to sketch out the idea, but proper DFA is coming next to allow smarter decisions. Comments and ideas now and in further commits will be very appreciated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138317 91177308-0d34-0410-b5e6-96231b3b80d8		2011-08-23 01:14:17 +00:00
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Analysis
Archive
Assembler	Move "atomic" and "volatile" designations on instructions after the opcode	2011-08-12 22:50:01 +00:00
Bindings/Ocaml
Bitcode
BugPoint
CodeGen	Introduce a pass to insert vzeroupper instructions to avoid AVX to	2011-08-23 01:14:17 +00:00
DebugInfo	Do not use named md nodes to track variables that are completely optimized. This does not scale while doing LTO with debug info. New approach is to include list of variables in the subprogram info directly.	2011-08-19 23:28:12 +00:00
ExecutionEngine
Feature
Integer
lib
Linker	Testcase for PR10663.	2011-08-22 10:32:09 +00:00
LLVMC
MC	Thumb parsing and encoding for SETEND.	2011-08-22 23:58:02 +00:00
Object
Other
Scripts
TableGen
Transforms	Constant pointers to objects don't need reference counting.	2011-08-22 17:29:11 +00:00
Unit
Verifier
CMakeLists.txt
lit.cfg
lit.site.cfg.in
Makefile
Makefile.tests
site.exp.in
TestRunner.sh