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Craig Topper 1ce8a5b385 [X86] Only look up boolean reduction cost tables if the reduction is not pairwise. 
Summary:
We don't pattern match pairwise shuffles in SelectionDAG. So we
should only return the optimized costs if its not a pairwise
shuffle.

I think SLP vectorizer gives priority to non pairwise shuffle if
the cost is the same. And the look up for reduction intrinsics
passes false for the pairwise flag. So this probably has no real
effect today.

Reviewers: RKSimon

Reviewed By: RKSimon

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D69083
 		2019-10-26 16:41:19 -07:00
..
Analysis [Alignment][NFC] getMemoryOpCost uses MaybeAlign 2019-10-25 21:26:59 +02:00
AsmParser [Alignment][NFC] Convert AllocaInst to MaybeAlign 2019-10-25 22:41:34 +02:00
BinaryFormat [DebugInfo] Add a DW_OP_LLVM_entry_value operation 2019-10-15 11:31:21 +00:00
Bitcode [Alignment][NFC] Convert AllocaInst to MaybeAlign 2019-10-25 22:41:34 +02:00
Bitstream [Bitcode] Move Bitstream to a separate library 2019-07-03 22:40:07 +00:00
CodeGen [SDAG] fold extract_vector_elt with undef index 2019-10-25 19:27:26 -04:00
DebugInfo Hide implementation details in anonymous namespaces. NFC. 2019-10-24 10:48:43 +02:00
Demangle [Demangle] Add a few more options to the microsoft demangler 2019-10-15 08:29:56 +00:00
ExecutionEngine [llvm/Object] - Make ELFObjectFile::getRelocatedSection return Expected<section_iterator> 2019-10-21 11:06:38 +00:00
FuzzMutate [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
Fuzzer
…
IR [Alignment][NFC] Convert AllocaInst to MaybeAlign 2019-10-25 22:41:34 +02:00
IRReader
…
LTO Fix compilation warning on the trailing whitespace. NFC. 2019-10-24 09:55:06 -04:00
LineEditor [CMake] Delete redundant DEPENDS/LINK_LIBS from LineEditor/XRay 2019-06-22 01:50:21 +00:00
Linker [Alignment][NFC] Remove dependency on GlobalObject::setAlignment(unsigned) 2019-10-15 11:24:36 +00:00
MC Always flush pending errors in MCAsmParser 2019-10-25 00:48:12 +02:00
MCA [MCA][LSUnit] Track loads and stores until retirement. 2019-10-08 10:46:01 +00:00
Object [Mips] Use appropriate private label prefix based on Mips ABI 2019-10-23 12:24:35 +02:00
ObjectYAML [ObjectYAML] - Do not use auto. NFC. 2019-10-26 15:08:49 +03:00
Option [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
Passes In the new pass manager use PTO.LoopUnrolling to determine when and how 2019-10-14 22:56:07 +00:00
ProfileData [SampleFDO] Add profile remapping support for profile on-demand loading used 2019-10-18 22:35:20 +00:00
Remarks [Remarks] Add support for prepending a path to external files 2019-10-16 15:40:59 +00:00
Support [APInt] Introduce APIntOps::GetMostSignificantDifferentBit() 2019-10-26 23:20:58 +03:00
TableGen Add Record::getValueAsOptionalDef(). 2019-10-25 16:39:21 -07:00
Target [X86] Only look up boolean reduction cost tables if the reduction is not pairwise. 2019-10-26 16:41:19 -07:00
Testing
…
TextAPI Reland "[TextAPI] Introduce TBDv4" 2019-10-10 04:24:44 +00:00
ToolDrivers [llvm-lib] Detect duplicate input files 2019-10-02 06:41:52 +00:00
Transforms [Alignment][NFC] Convert AllocaInst to MaybeAlign 2019-10-25 22:41:34 +02:00
WindowsManifest Fight a bit against global initializers. NFC. 2019-08-22 19:43:27 +00:00
XRay [XRay] Silence static analyzer dyn_cast<BufferExtents> null dereference warning. NFCI. 2019-09-22 18:47:00 +00:00
CMakeLists.txt Fix build errors LLVM tests are disabled. 2019-07-11 22:08:35 +00:00
LLVMBuild.txt [Bitcode] Move Bitstream to a separate library 2019-07-03 22:40:07 +00:00