Quentin Colombet 75c9433b49 [DAGCombiner] insert_vector_elt: Avoid building a vector twice. ... This patch prevents the following combine when the input vector is used more than once. insert_vector_elt (build_vector elt0, ..., eltN), NewEltIdx, idx => build_vector elt0, ..., NewEltIdx, ..., eltN The reasons are: - Building a vector may be expensive, so try to reuse the existing part of a vector instead of creating a new one (think big vectors). - elt0 to eltN now have two users instead of one. This may prevent some other optimizations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187396 91177308-0d34-0410-b5e6-96231b3b80d8		2013-07-30 00:24:09 +00:00
..
Analysis
AsmParser
Bitcode
CodeGen	[DAGCombiner] insert_vector_elt: Avoid building a vector twice.	2013-07-30 00:24:09 +00:00
DebugInfo
ExecutionEngine
IR
IRReader
Linker
MC
Object
Option
Support	Make file_status::getUniqueID const.	2013-07-29 21:55:38 +00:00
TableGen
Target	[mips] Add comment and simplify function.	2013-07-29 19:08:34 +00:00
Transforms	SLPVectorier: update the debug location for the new instructions.	2013-07-29 18:18:46 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile