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Craig Topper 39e63bd2d8 [IR][CostModel] A scalable vector shuffle can't be an identity or reverse shuffle. 
Even if the minimum number of elements is 1 and the length doesn't change,
we don't know what vscale is so we can't classify it as identity mask. Instead it
is a zero element splat.

For reverse, we shouldn't classify it as a reverse unless there are at least 2 elements
in the mask. This applies to both fixed and scalable vectors. For fixed vectors, a single
element would be an identity shuffle. For scalable vector it's a zero elt splat.

Reviewed By: sdesmalen, liaolucy

Differential Revision: https://reviews.llvm.org/D124655
2022-05-09 21:37:25 -07:00
..
AbstractCallSite.cpp
Cleanup includes: DebugInfo & CodeGen
2022-03-12 17:26:40 +01:00
AsmWriter.cpp
Add PointerType analysis for DirectX backend
2022-04-25 17:49:43 -05:00
Assumptions.cpp
[Attributor][OpenMP] Add assumption for non-call assembly instructions
2022-03-28 20:57:52 -05:00
AttributeImpl.h
Extend the uwtable attribute with unwind table kind
2022-02-14 14:35:02 +00:00
Attributes.cpp
[ArgPromotion][Attributor] Update min-legal-vector-width when do promotion
2022-05-02 14:13:05 +08:00
AutoUpgrade.cpp
[AutoUpgrade] Don't lose attributes when upgrading mem intrinsics
2022-04-13 09:30:10 +00:00
BasicBlock.cpp
Move BasicBlock::getTerminator definition to the header
2022-04-05 13:11:38 -07:00
BuiltinGCs.cpp
[llvm] Use = default (NFC)
2022-02-06 22:18:35 -08:00
CMakeLists.txt
[VP] Introducing VectorBuilder, the VP intrinsic builder
2022-03-07 10:02:07 +01:00
Comdat.cpp
Cleanup header dependencies in LLVMCore
2022-02-02 06:54:20 +01:00
ConstantFold.cpp
[ConstantFold] Use getFltSemantics instead of manually checking the type
2022-05-05 15:52:19 +02:00
ConstantFold.h
[ConstantFolding] Use ICmpInst::Predicate instead of plain integer
2021-12-30 14:31:44 +07:00
ConstantRange.cpp
[ConstantRange] Add exact union/intersect (NFC)
2021-11-07 21:46:06 +01:00
Constants.cpp
[IR] Simplify code. NFCI.
2022-05-05 16:06:59 +02:00
ConstantsContext.h
[IR] Added operator delete to subclasses of User to avoid UB
2021-07-08 11:59:22 +02:00
Core.cpp
[CAPI] Expose CastInst::getCastOpcode in C API
2022-04-30 18:40:04 -04:00
DataLayout.cpp
Cleanup header dependencies in LLVMCore
2022-02-02 06:54:20 +01:00
DebugInfo.cpp
Cleanup header dependencies in LLVMCore
2022-02-02 06:54:20 +01:00
DebugInfoMetadata.cpp
[DebugInfo] Add a TargetFuncName field in DISubprogram for
2022-04-15 16:38:23 -04:00
DebugLoc.cpp
Cleanup header dependencies in LLVMCore
2022-02-02 06:54:20 +01:00
DiagnosticHandler.cpp
[llvm] Replace report_fatal_error(std::string) uses with report_fatal_error(Twine)
2021-10-06 12:04:30 +01:00
DiagnosticInfo.cpp
[misexpect] Re-implement MisExpect Diagnostics
2022-04-19 21:23:48 +00:00
DiagnosticPrinter.cpp
[IR] Fix a few incorrect paths in file header comments. NFC
2021-10-15 09:18:57 -07:00
DIBuilder.cpp
[DebugInfo] Add a TargetFuncName field in DISubprogram for
2022-04-15 16:38:23 -04:00
Dominators.cpp
Cleanup includes: DebugInfo & CodeGen
2022-03-12 17:26:40 +01:00
FPEnv.cpp
[iwyu] Fix some header include regression
2022-04-05 15:02:03 +02:00
Function.cpp
[IR] Require intrinsic struct return type to be anonymous
2022-03-30 09:51:24 +02:00
GCStrategy.cpp
[GC][NFC] Make getGCStrategy by name available in IR
2021-08-02 14:26:04 +07:00
Globals.cpp
Cleanup header dependencies in LLVMCore
2022-02-02 06:54:20 +01:00
GVMaterializer.cpp
[llvm] Use = default (NFC)
2022-02-06 22:18:35 -08:00
InlineAsm.cpp
Cleanup header dependencies in LLVMCore
2022-02-02 06:54:20 +01:00
Instruction.cpp
[SCCP][IR] Landing pads are not safe to remove
2022-03-14 14:59:32 +01:00
Instructions.cpp
[IR][CostModel] A scalable vector shuffle can't be an identity or reverse shuffle.
2022-05-09 21:37:25 -07:00
IntrinsicInst.cpp
[VP] Add more cast VPintrinsic and docs.
2022-04-01 09:16:10 +08:00
IRBuilder.cpp
[llvm] Use = default (NFC)
2022-02-06 22:18:35 -08:00
IRPrintingPasses.cpp
…
LegacyPassManager.cpp
[LegacyPassManager] Move structural hashing into Pass classes. NFC.
2022-03-17 09:51:12 +00:00
LLVMContext.cpp
Add PointerType analysis for DirectX backend
2022-04-25 17:49:43 -05:00
LLVMContextImpl.cpp
[LLVMContext] Replace enableOpaquePointers() with setOpaquePointers()
2022-04-05 12:02:48 +02:00
LLVMContextImpl.h
Add PointerType analysis for DirectX backend
2022-04-25 17:49:43 -05:00
LLVMRemarkStreamer.cpp
Cleanup header dependencies in LLVMCore
2022-02-02 06:54:20 +01:00
Mangler.cpp
[Mangler] Mangle aliases to fastcall/vectorcall functions correctly
2022-02-25 22:06:47 +00:00
MDBuilder.cpp
…
Metadata.cpp
Don't replace Undef with null value for Constants Differential Revision:https://reviews.llvm.org/D124098
2022-04-25 20:50:00 -04:00
MetadataImpl.h
…
Module.cpp
Apply clang-tidy fixes for readability-redundant-member-init in Module.cpp (NFC)
2022-03-28 09:18:27 -07:00
ModuleSummaryIndex.cpp
Cleanup header dependencies in LLVMCore
2022-02-02 06:54:20 +01:00
Operator.cpp
Cleanup header dependencies in LLVMCore
2022-02-02 06:54:20 +01:00
OptBisect.cpp
Cleanup header dependencies in LLVMCore
2022-02-02 06:54:20 +01:00
Pass.cpp
[LegacyPassManager] Move structural hashing into Pass classes. NFC.
2022-03-17 09:51:12 +00:00
PassInstrumentation.cpp
[NewPM] Handle passes with params in -print-before/-print-after
2021-07-09 09:27:37 +02:00
PassManager.cpp
Revert "[PassManager] Add pretty stack entries before P->run() call."
2022-03-09 18:46:32 +00:00
PassRegistry.cpp
…
PassTimingInfo.cpp
[LLVM][NFC]Inclusive language: remove occurances of sanity check/test from llvm
2021-11-24 17:29:55 -05:00
PrintPasses.cpp
…
ProfileSummary.cpp
Cleanup header dependencies in LLVMCore
2022-02-02 06:54:20 +01:00
PseudoProbe.cpp
Cleanup header dependencies in LLVMCore
2022-02-02 06:54:20 +01:00
ReplaceConstant.cpp
[NFC] Remove unnecessary "#include"s from header files
2022-02-23 01:20:48 -08:00
SafepointIRVerifier.cpp
[Safepoint Verifier] Add a missed comment to previous commit.
2022-02-15 12:21:33 +07:00
SSAContext.cpp
Cleanup header dependencies in LLVMCore
2022-02-02 06:54:20 +01:00
Statepoint.cpp
Cleanup header dependencies in LLVMCore
2022-02-02 06:54:20 +01:00
StructuralHash.cpp
…
SymbolTableListTraitsImpl.h
…
Type.cpp
Cleanup header dependencies in LLVMCore
2022-02-02 06:54:20 +01:00
TypeFinder.cpp
[IR] Support ifuncs in opaque pointer mode
2022-01-27 13:01:33 +01:00
Use.cpp
[IR] Remove unused forward declarations (NFC)
2022-04-03 12:54:54 -07:00
User.cpp
[CSSPGO] Unblock optimizations with pseudo probe instrumentation part 3.
2021-10-12 09:44:12 -07:00
Value.cpp
Value::isTransitiveUsedByMetadataOnly: Don't repeatedly add an element to the worklist. NFC
2022-04-11 13:35:25 -07:00
ValueSymbolTable.cpp
PR51018: Remove explicit conversions from SmallString to StringRef to future-proof against C++23
2021-07-08 13:37:57 -07:00
VectorBuilder.cpp
[VP] Introducing VectorBuilder, the VP intrinsic builder
2022-03-07 10:02:07 +01:00
Verifier.cpp
Revert "[asan] Emit .size directive for global object size before redzone"
2022-04-21 16:21:17 -07:00