Hal Finkel 111bcf9b59 Make use of previously generated stores in SelectionDAGLegalize::ExpandExtractFromVectorThroughStack ... When expanding EXTRACT_VECTOR_ELT and EXTRACT_SUBVECTOR using SelectionDAGLegalize::ExpandExtractFromVectorThroughStack, we store the entire vector and then load the piece we want. This is fine in isolation, but generating a new store (and corresponding stack slot) for each extraction ends up producing code of poor quality. When we scalarize a vector operation (using SelectionDAG::UnrollVectorOp for example) we generate one EXTRACT_VECTOR_ELT for each element in the vector. This used to generate one stored copy of the vector for each element in the vector. Now we search the uses of the vector for a suitable store before generating a new one, which results in much more efficient scalarization code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205153 91177308-0d34-0410-b5e6-96231b3b80d8		2014-03-30 15:10:18 +00:00
..
Analysis	ARM64: initial backend import	2014-03-29 10:18:08 +00:00
Assembler
Bindings
Bitcode	All new elements except the last one initialized to NULL. Ideally, once parsing is complete, all elements should be non-NULL.	2014-03-27 12:08:23 +00:00
BugPoint
CodeGen	Make use of previously generated stores in SelectionDAGLegalize::ExpandExtractFromVectorThroughStack	2014-03-30 15:10:18 +00:00
DebugInfo	ARM64: initial backend import	2014-03-29 10:18:08 +00:00
ExecutionEngine
Feature	Prevent alias from pointing to weak aliases.	2014-03-27 15:26:56 +00:00
FileCheck
Instrumentation
Integer
JitListener
Linker
LTO
MC	llvm/test/MC/ELF/nocompression.s: Loosen an expression to match "llvm-mc.EXE".	2014-03-30 14:04:00 +00:00
Object
Other
TableGen
tools	llvm-cov: Move XFAIL after the body of the test	2014-03-26 22:51:39 +00:00
Transforms	llvm/test/Transforms/LoopStrengthReduce/ARM64/lsr-*.ll: Add explicit triple arm64-unknown for targeting pecoff.	2014-03-30 05:01:04 +00:00
Unit
Verifier
YAMLParser
.clang-format
CMakeLists.txt
lit.cfg	llvm-mc: error when -compress-debug-sections is requested and zlib is not linked	2014-03-28 20:45:24 +00:00
lit.site.cfg.in
Makefile
Makefile.tests
TestRunner.sh