llvm-6502/lib
Andrea Di Biagio 029a76b0a2 [Vectorizer] Add a new 'OperandValueKind' in TargetTransformInfo called
'OK_NonUniformConstValue' to identify operands which are constants but
not constant splats.

The cost model now allows returning 'OK_NonUniformConstValue'
for non splat operands that are instances of ConstantVector or
ConstantDataVector.

With this change, targets are now able to compute different costs
for instructions with non-uniform constant operands.
For example, On X86 the cost of a vector shift may vary depending on whether
the second operand is a uniform or non-uniform constant.

This patch applies the following changes:
 - The cost model computation now takes into account non-uniform constants;
 - The cost of vector shift instructions has been improved in
   X86TargetTransformInfo analysis pass;
 - BBVectorize, SLPVectorizer and LoopVectorize now know how to distinguish
   between non-uniform and uniform constant operands.

Added a new test to verify that the output of opt
'-cost-model -analyze' is valid in the following configurations: SSE2,
SSE4.1, AVX, AVX2.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201272 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-12 23:43:47 +00:00
..
Analysis [Vectorizer] Add a new 'OperandValueKind' in TargetTransformInfo called 2014-02-12 23:43:47 +00:00
AsmParser
Bitcode
CodeGen Reformat a few lines with clang-format. 2014-02-12 22:47:09 +00:00
DebugInfo make llvm-dwarfdump a little more resilient when parsing .debug_loc 2014-02-11 21:22:53 +00:00
ExecutionEngine Extend RTDyld API to enable optionally precomputing the total amount of memory 2014-02-12 21:30:07 +00:00
IR Mark the methods in the Mangler const. 2014-02-10 21:25:13 +00:00
IRReader
LineEditor
Linker
LTO
MC Revert r201237+r201238: Demote EmitRawText call in AsmPrinter::EmitInlineAsm() and remove hasRawTextSupport() call 2014-02-12 15:39:20 +00:00
Object Change the begin and end methods in ObjectFile to match the style guide. 2014-02-10 20:24:04 +00:00
Option
Support Rename Windows.h to WindowsSupport.h to avoid ambiguity 2014-02-12 21:26:20 +00:00
TableGen
Target [Vectorizer] Add a new 'OperandValueKind' in TargetTransformInfo called 2014-02-12 23:43:47 +00:00
Transforms [Vectorizer] Add a new 'OperandValueKind' in TargetTransformInfo called 2014-02-12 23:43:47 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile