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c4642ac1ba
llvm-mirror/lib
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Fraser Cormack c4642ac1ba [RISCV] Support extraction of misaligned subvectors 
This patch extends the support for RVV EXTRACT_SUBVECTOR to cover those
which don't align to a vector register boundary. It accomplishes this by
extracting the nearest register-sized subvector (a subregister
operation), then sliding the vector down with VSLIDEDOWN and extracting
the subvector from the first position (a COPY operation).

Since this procedure involves the use of VSCALE and multiplication, the
handling of such operations is done during lowering to simplify the
implementation and make use of DAG combining. This necessitated moving
some helper functions from RISCVISelDAGToDAG to RISCVTargetLowering.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D96959
2021-02-20 15:43:54 +00:00
..
Analysis [ValueTracking] Improve impliesPoison 2021-02-20 13:22:34 +09:00
AsmParser Encode alignment attribute for cmpxchg 2021-02-11 15:17:50 -05:00
BinaryFormat [Debuginfo][DW_OP_implicit_pointer] (1/7) Support for DW_OP_LLVM_implicit_pointer 2021-01-15 14:45:04 +05:30
Bitcode [LTO] Perform DSOLocal propagation in combined index 2021-02-12 22:58:26 -08:00
Bitstream [llvm] Use llvm::append_range (NFC) 2021-01-06 18:27:33 -08:00
CodeGen [DAG] foldSubToUSubSat - fold sub(a,trunc(umin(zext(a),b))) -> usubsat(a,trunc(umin(b,SatLimit))) 2021-02-20 12:02:07 +00:00
DebugInfo DebugInfo/Symbolize: Exclude ARM mapping symbols for .symtab symbolization after D95916 2021-02-12 11:04:20 -08:00
Demangle [Demangle] Support demangling Swift calling convention in MS demangler. 2021-01-27 13:24:54 -08:00
DWARFLinker [dsymutil][DWARFLinker][NFC] make AddressManager not depending on the order of checks for relocations. 2021-01-31 16:34:10 +03:00
ExecutionEngine [ORC] Print CPU feature string in JITTargetMachineBuilder debugging output. 2021-02-19 15:18:19 +11:00
Extensions llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
FileCheck [llvm] Use llvm::sort (NFC) 2021-01-17 10:39:45 -08:00
Frontend [OpenMPIRBuilder] Implement collapseLoops. 2021-02-03 19:12:02 -06:00
Fuzzer
FuzzMutate [FuzzMutate] Add mutator to modify instruction flags. 2021-01-23 19:05:20 +00:00
InterfaceStub [elfabi] Fix a bug when .dynsym contains no non-local symbol 2021-02-19 11:36:53 -08:00
IR Patch by @wecing (Chenguang Wang). 2021-02-19 12:44:17 -08:00
IRReader static const char *const foo => const char foo[] 2020-12-01 10:33:18 -08:00
LineEditor llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
Linker ValueMapper: Rename RF_MoveDistinctMDs => RF_ReuseAndMutateDistinctMDs, NFC 2021-02-10 16:53:21 -08:00
LTO [lto] Enable new PM when the PM config is non-empty 2021-02-15 20:49:09 +01:00
MC [WebAssembly] Fix assert in lookup of section symbols 2021-02-18 11:50:14 -08:00
MCA [llvm] Use llvm::find (NFC) 2021-01-19 20:19:14 -08:00
Object [AMDGPU] gfx90a support 2021-02-17 16:01:32 -08:00
ObjectYAML [AMDGPU] gfx90a support 2021-02-17 16:01:32 -08:00
Option [clang][cli] Command line round-trip for HeaderSearch options 2021-02-04 10:18:34 +01:00
Passes [SampleFDO] Skip PreLink ICP for better profile quality of MonoLTO PostLink 2021-02-19 19:35:23 -08:00
ProfileData [SampleFDO] Stop repeated indirect call promotion for the same target. 2021-02-18 17:01:32 -08:00
Remarks [llvm] Use append_range (NFC) 2021-01-27 23:25:41 -08:00
Support [Support] Use static_assert instead of assert (NFC) 2021-02-18 22:46:41 -08:00
TableGen Revert "[TableGen] Improve algorithms for processing template arguments" 2021-02-18 09:26:26 -05:00
Target [RISCV] Support extraction of misaligned subvectors 2021-02-20 15:43:54 +00:00
Testing [clangd] Implement semanticTokens modifiers 2021-02-09 16:31:22 +01:00
TextAPI [llvm][TextAPI] add equality operator for InterfaceFile 2021-02-18 11:53:08 -08:00
ToolDrivers llvm-lib: Pull error printing code out of two functions 2021-01-26 19:13:30 -05:00
Transforms [InstCombine] matchBSwapOrBitReverse - remove pattern matching early-out. NFCI. 2021-02-20 13:15:34 +00:00
WindowsManifest llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
XRay [lib/Object, tools] - Make ELFObjectFile::getELFFile return reference. 2020-12-04 16:02:29 +03:00
CMakeLists.txt llvmbuildectomy - support disabled native target 2020-11-13 15:50:13 +01:00