Arnold Schwaighofer c46e2df74c DAGCombiner: Fold pointless truncate, bitcast, buildvector series ... (2xi32) (truncate ((2xi64) bitcast (buildvector i32 a, i32 x, i32 b, i32 y))) can be folded into a (2xi32) (buildvector i32 a, i32 b). Such a DAG would cause uneccessary vdup instructions followed by vmovn instructions. We generate this code on ARM NEON for a setcc olt, 2xf64, 2xf64. For example, in the vectorized version of the code below. double A[N]; double B[N]; void test_double_compare_to_double() { int i; for(i=0;i<N;i++) A[i] = (double)(A[i] < B[i]); } radar://13191881 Fixes bug 15283. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175670 91177308-0d34-0410-b5e6-96231b3b80d8		2013-02-20 21:33:32 +00:00
..
Analysis	I optimized the following patterns:	2013-02-20 12:42:54 +00:00
Archive
Assembler	Modify the LLVM assembly output so that it uses references to represent function attributes.	2013-02-20 07:21:42 +00:00
Bindings/Ocaml	Use the attribute group reference instead of the attribute directly.	2013-02-20 07:48:23 +00:00
Bitcode	Modify the LLVM assembly output so that it uses references to represent function attributes.	2013-02-20 07:21:42 +00:00
BugPoint
CodeGen	DAGCombiner: Fold pointless truncate, bitcast, buildvector series	2013-02-20 21:33:32 +00:00
DebugInfo
ExecutionEngine
Feature	Modify the LLVM assembly output so that it uses references to represent function attributes.	2013-02-20 07:21:42 +00:00
FileCheck
Instrumentation	[asan] instrument invoke insns with noreturn attribute (as well as call insns)	2013-02-20 12:35:15 +00:00
Integer
JitListener
Linker
MC	ELF symbol table field st_other support,	2013-02-19 22:29:00 +00:00
Object	[llvm-readobj] Add ELF .dynamic table dumping.	2013-02-20 02:37:12 +00:00
Other	Modify the LLVM assembly output so that it uses references to represent function attributes.	2013-02-20 07:21:42 +00:00
Scripts
TableGen
tools
Transforms	Modify the LLVM assembly output so that it uses references to represent function attributes.	2013-02-20 07:21:42 +00:00
Unit
Verifier
YAMLParser
CMakeLists.txt
lit.cfg
lit.site.cfg.in
Makefile
Makefile.tests
TestRunner.sh