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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
benchmarks
bindings [Go] Fix bindings/go/llvm/IRBindings.cpp 2020-12-16 10:09:58 -08:00
cmake [cmake] Move check for libproc to config-ix.cmake 2021-02-18 10:54:27 +01:00
docs [lit] Add --xfail and --filter-out (inverse of --filter) 2021-02-20 05:43:29 -05:00
examples [Draft] [examples] Move llvm/examples/OCaml-Kaleidoscope/ to llvm-archive 2021-02-11 06:52:24 +05:30
include [ValueTracking] Improve impliesPoison 2021-02-20 13:22:34 +09:00
lib [RISCV] Support extraction of misaligned subvectors 2021-02-20 15:43:54 +00:00
projects llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
resources
runtimes [CMake] Delete LLVM_RUNTIME_BUILD_ID_LINK_TARGETS 2021-02-15 11:06:23 -08:00
test [RISCV] Support extraction of misaligned subvectors 2021-02-20 15:43:54 +00:00
tools [llvm-dwarfdump][locstats] Unify handling of inlined vars with no loc 2021-02-19 05:38:01 -08:00
unittests [ConstantRangeTest] Make exhaustive testing more principled (NFC) 2021-02-20 12:37:31 +01:00
utils [lit testing] "END." not "END:" 2021-02-20 09:43:36 -05:00
.clang-format
.clang-tidy - Update .clang-tidy to ignore parameters of main like functions for naming violations in clang and llvm directory 2020-01-31 16:49:45 +00:00
.gitattributes Fix the "git modified" issue on the preserve-comments-crlf.s. 2019-09-10 12:17:49 +00:00
.gitignore [clangd] Store index in '.cache/clangd/index' instead of '.clangd/index' 2020-07-07 14:53:45 +02:00
CMakeLists.txt [cmake] Move check for libproc to config-ix.cmake 2021-02-18 10:54:27 +01:00
CODE_OWNERS.TXT Change XCore code owner. 2021-01-14 12:13:48 +00:00
configure
CREDITS.TXT [NFC] Add contributors names to CREDITS.TXT 2020-10-07 13:22:55 -04:00
LICENSE.TXT Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
llvm.spec.in Update structured references to the license to the new license. 2019-01-19 11:30:51 +00:00
README.txt Test commit. 2020-03-14 18:08:26 -07:00
RELEASE_TESTERS.TXT Update the list of platforms & archs 2018-12-16 14:47:16 +00:00

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