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Andrzej Warzynski df7173628b [AArch64][SVE] Add intrinsics for non-temporal scatters/gathers 
Summary:
This patch adds the following intrinsics for non-temporal gather loads
and scatter stores:
  * aarch64_sve_ldnt1_gather_index
  * aarch64_sve_stnt1_scatter_index
These intrinsics implement the "scalar + vector of indices" addressing
mode.

As opposed to regular and first-faulting gathers/scatters, there's no
instruction that would take indices and then scale them. Instead, the
indices for non-temporal gathers/scatters are scaled before the
intrinsics are lowered to `ldnt1` instructions.

The new ISD nodes, GLDNT1_INDEX and SSTNT1_INDEX, are only used as
placeholders so that we can easily identify the cases implemented in
this patch in performGatherLoadCombine and performScatterStoreCombined.
Once encountered, they are replaced with:
  * GLDNT1_INDEX -> SPLAT_VECTOR + SHL + GLDNT1
  * SSTNT1_INDEX -> SPLAT_VECTOR + SHL + SSTNT1

The patterns for lowering ISD::SHL for scalable vectors (required by
this patch) were missing, so these are added too.

Reviewed By: sdesmalen

Differential Revision: https://reviews.llvm.org/D75601
2020-03-12 13:55:56 +00:00
benchmarks Pull google/benchmark library to the LLVM tree 2018-08-28 09:42:41 +00:00
bindings Add an SDK attribute to DICompileUnit 2020-03-11 14:14:06 -07:00
cmake [clang][cmake] Include generated rst files in html built by docs-clang-html target 2020-03-05 21:30:37 -08:00
docs Basis of dropping uses in llvm.assume. 2020-03-12 10:10:22 +01:00
examples Add missing "llvm/Support/Host.h" header to LLVM example after recent header trimming (NFC) 2020-03-12 00:12:03 +00:00
include [AArch64][SVE] Add intrinsics for non-temporal scatters/gathers 2020-03-12 13:55:56 +00:00
lib [AArch64][SVE] Add intrinsics for non-temporal scatters/gathers 2020-03-12 13:55:56 +00:00
projects Add few docs and implementation of strcpy and strcat. 2019-10-04 17:30:54 +00:00
resources
runtimes [runtimes] When COMPILER_RT is enabled, consider SANITIZER prefixes 2020-03-11 14:22:20 -07:00
test [AArch64][SVE] Add intrinsics for non-temporal scatters/gathers 2020-03-12 13:55:56 +00:00
tools [llvm-jitlink] Fix DEBUG_TYPE string. 2020-03-11 20:04:54 -07:00
unittests Basis of dropping uses in llvm.assume. 2020-03-12 10:10:22 +01:00
utils [gn build] Port d5edcb90643 2020-03-12 11:58:14 +00:00
.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 Continue removing llgo. 2020-02-10 10:33:58 -08:00
CMakeLists.txt Revert "[AVR] Include AVR by default in LLVM builds" 2020-03-12 19:53:46 +13:00
CODE_OWNERS.TXT Remove myself from CODE_OWNERS. 2020-02-25 11:59:29 +00:00
configure
CREDITS.TXT Update email address. 2019-07-17 07:02:02 +00:00
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
LLVMBuild.txt Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
README.txt Test commit. 2019-10-03 14:57:49 +00:00
RELEASE_TESTERS.TXT Update the list of platforms & archs 2018-12-16 14:47:16 +00:00

README.txt 

The LLVM Compiler Infrastructure
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