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Sanjay Patel bf5748a1af [x86] fold vector (X > -1) & Y to shift+andn 
and (pcmpgt X, -1), Y --> pandn (vsrai X, BitWidth-1), Y

This avoids the -1 constant vector in favor of an arithmetic shift
instruction if it exists (the ISA is still not complete after all
these years...).

We catch this pattern late in combining by matching PCMPGT, so it
should not interfere with more general folds.

Differential Revision: https://reviews.llvm.org/D113603
 		2021-11-12 08:17:46 -05:00
..
Analysis [SCEV] Use APIntOps::umin to select best max BC count (NFC). 2021-11-12 12:20:01 +00:00
AsmParser Revert "[DebugInfo] Enforce implicit constraints on `distinct` MDNodes" 2021-11-09 14:27:55 -08:00
BinaryFormat [llvm][clang][NFC] updates inline licence info 2021-08-11 02:48:53 +00:00
Bitcode [DebugInfo] run clang-format on some unformatted files 2021-11-11 18:59:41 -08:00
Bitstream
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CodeGen Fix minor deficiency in machine-sink. 2021-11-12 08:01:13 +01:00
DWARFLinker Move TargetRegistry.(h|cpp) from Support to MC 2021-10-08 14:51:48 -07:00
DWP [DWP] Refactoring llvm-dwp in to a library part 2 2021-07-22 14:23:29 -07:00
DebugInfo llvm-dwarfdump: Lookup type units when prettyprinting types 2021-11-09 16:58:22 -08:00
Demangle Fix memory leak in D demangler 2021-11-09 16:08:14 -08:00
ExecutionEngine [ORC] Add a utility for adding missing "self" relocations to a Symbol 2021-11-04 15:01:05 -07:00
Extensions
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FileCheck [llvm] Use StringRef::contains (NFC) 2021-10-23 08:45:27 -07:00
Frontend Move TargetRegistry.(h|cpp) from Support to MC 2021-10-08 14:51:48 -07:00
FuzzMutate
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Fuzzer
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IR [DebugInfo] run clang-format on some unformatted files 2021-11-11 18:59:41 -08:00
IRReader
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InterfaceStub [llvm] Use StringRef::contains (NFC) 2021-10-23 08:45:27 -07:00
LTO [NewPM] Use the default AA pipeline by default 2021-11-04 15:10:34 -07:00
LineEditor
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Linker [llvm] Use make_early_inc_range (NFC) 2021-11-05 19:39:07 -07:00
MC [llvm] Use llvm::reverse (NFC) 2021-11-06 19:31:18 -07:00
MCA [MCA] Fix a warning 2021-09-20 09:46:38 -07:00
Object Extend obj2yaml to optionally preserve raw __LINKEDIT/__DATA segments. 2021-11-08 11:30:12 -08:00
ObjectYAML Reland [XCOFF][yaml2obj] support for the auxiliary file header. 2021-11-10 07:23:56 +00:00
Option [llvm/OptTable] Add named param comment for GroupedShortOption 2021-09-27 11:33:29 -04:00
Passes [NFC] Rename GVN -> GVNPass and SROA -> SROAPass 2021-11-09 10:35:58 -08:00
ProfileData [compiler-rt] Fix diagnostic in InstrProfError 2021-11-09 20:30:03 +00:00
Remarks
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Support [Support] [VirtualFileSystem] Detect the windows_slash path style 2021-11-08 22:21:29 +02:00
TableGen [Tablegen] Collect all global state into one managed static 2021-11-09 01:24:54 +00:00
Target [x86] fold vector (X > -1) & Y to shift+andn 2021-11-12 08:17:46 -05:00
Testing
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TextAPI [llvm] Use drop_begin (NFC) 2021-09-16 08:46:26 -07:00
ToolDrivers [Type] Avoid APFloat.h include (NFC) 2021-10-09 11:29:26 +02:00
Transforms [InstCombine] Drop redundant fold for and/or of icmp eq/ne (NFCI) 2021-11-11 20:25:40 +01:00
WindowsManifest Make WindowsManifestMerger::merge() take a MemoryBufferRef 2021-08-24 16:39:20 -04:00
XRay Support: Use Expected<T>::moveInto() in a few places 2021-10-22 12:40:10 -07:00
CMakeLists.txt [DWP] Refactoring llvm-dwp in to a library part 2 2021-07-22 14:23:29 -07:00