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Sanjay Patel 15bccaadfa [x86] scalarize extract element 0 of FP math
This is another step towards ensuring that we produce the optimal code for reductions,
but there are other potential benefits as seen in the tests diffs:

  1. Memory loads may get scalarized resulting in more efficient code.
  2. Memory stores may get scalarized resulting in more efficient code.
  3. Complex ops like fdiv/sqrt get scalarized which may be faster instructions depending on uarch.
  4. Even simple ops like addss/subss/mulss/roundss may result in faster operation/less frequency throttling when scalarized depending on uarch.

The TODO comment suggests 1 or more follow-ups for opcodes that can currently result in regressions.

Differential Revision: https://reviews.llvm.org/D58282

llvm-svn: 355130
2019-02-28 19:47:04 +00:00
benchmarks Pull google/benchmark library to the LLVM tree 2018-08-28 09:42:41 +00:00
bindings [bindings/go] Fix building on 32-bit systems (ARM etc.) 2019-02-16 22:33:10 +00:00
cmake CMake: Fix stand-alone clang builds since r353268 2019-02-20 01:11:05 +00:00
docs Update docs of memcpy/move/set wrt. align and len 2019-02-26 18:53:13 +00:00
examples [Kaleidoscope] Fix symbol resolver to search in reverse order. 2019-02-21 16:53:04 +00:00
include Add support for computing "zext of value" in KnownBits. NFCI 2019-02-28 15:45:29 +00:00
lib [x86] scalarize extract element 0 of FP math 2019-02-28 19:47:04 +00:00
projects Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
resources
runtimes [CMake][runtimes] Set clang-header dependency for builtins 2019-02-20 23:06:10 +00:00
test [x86] scalarize extract element 0 of FP math 2019-02-28 19:47:04 +00:00
tools [dsymutil] Use rfind for paths with parentheses 2019-02-28 18:46:04 +00:00
unittests Fix IR/Analysis layering issue with OptBisect 2019-02-28 04:00:55 +00:00
utils Add Support for Creating and Deleting Unicode Files and Directories in Lit 2019-02-28 19:16:17 +00:00
.arcconfig [llvm] Set up .arcconfig to point to Diffusion L repository 2018-01-12 15:37:41 +00:00
.clang-format
.clang-tidy Disable tidy checks with too many hits 2019-02-01 11:20:13 +00:00
.gitattributes [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
.gitignore [clangd] Store index in '.clangd/index' instead of '.clangd-index' 2019-02-20 19:08:06 +00:00
CMakeLists.txt [CMake] Honor LLVM_EXTERNAL_<proj>_SOURCE_DIR 2019-02-22 21:19:48 +00:00
CODE_OWNERS.TXT [llvm-mca] Move llvm-mca library to llvm/lib/MCA. 2018-12-17 08:08:31 +00:00
configure
CREDITS.TXT [NFC] Add to contributor list. 2019-02-26 05:46:45 +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 Testing commit access 2019-02-19 20:38:51 +00:00
RELEASE_TESTERS.TXT Update the list of platforms & archs 2018-12-16 14:47:16 +00:00

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