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Bjorn Pettersson 6a9d0663f6 [LSV] Avoid adding vectors of pointers as candidates 
Summary:
We no longer add vectors of pointers as candidates for
load/store vectorization. It does not seem to work anyway,
but without this patch we can end up in asserts when trying
to create casts between an integer type and the pointer of
vectors type.

The test case I've added used to assert like this when trying to
cast between i64 and <2 x i16*>:
opt: ../lib/IR/Instructions.cpp:2565: Assertion `castIsValid(op, S, Ty) && "Invalid cast!"' failed.
#0 PrintStackTraceSignalHandler(void*)
#1 SignalHandler(int)
#2 __restore_rt
#3 __GI_raise
#4 __GI_abort
#5 __GI___assert_fail
#6 llvm::CastInst::Create(llvm::Instruction::CastOps, llvm::Value*, llvm::Type*, llvm::Twine const&, llvm::Instruction*)
#7 llvm::IRBuilder<llvm::ConstantFolder, llvm::IRBuilderDefaultInserter>::CreateBitOrPointerCast(llvm::Value*, llvm::Type*, llvm::Twine const&)
#8 Vectorizer::vectorizeStoreChain(llvm::ArrayRef<llvm::Instruction*>, llvm::SmallPtrSet<llvm::Instruction*, 16u>*)

Reviewers: arsenm

Reviewed By: arsenm

Subscribers: nhaehnle, llvm-commits

Differential Revision: https://reviews.llvm.org/D39296

llvm-svn: 316665
2017-10-26 13:59:15 +00:00
bindings Reverting r315590; it did not include changes for llvm-tblgen, which is causing link errors for several people. 2017-10-15 14:32:27 +00:00
cmake [cmake] Restrict resource file usage to Windows build hosts 2017-10-25 17:11:28 +00:00
docs Added instructions for obtaining clang-tools-extra to the Getting Started page. 2017-10-24 17:28:39 +00:00
examples Fix broken links to the Itanium CXX ABI 2017-09-12 00:19:11 +00:00
include [Transforms] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC). 2017-10-26 00:55:39 +00:00
lib [LSV] Avoid adding vectors of pointers as candidates 2017-10-26 13:59:15 +00:00
projects Add temporary workaround to allow in-tree libc++ builds on Windows 2017-05-11 01:44:30 +00:00
resources In MSVC builds embed a VERSIONINFO resource in our exe and DLL files. 2015-06-12 15:58:29 +00:00
runtimes [CMake][runtimes] Use the same configuration for non-target and "default" target 2017-09-08 22:26:50 +00:00
test [LSV] Avoid adding vectors of pointers as candidates 2017-10-26 13:59:15 +00:00
tools Re-land "[dwarfdump] Add -lookup option" 2017-10-25 21:56:41 +00:00
unittests Revert r316582 [Local] Fix a bug in the domtree update logic for MergeBasicBlockIntoOnlyPred. 2017-10-25 21:32:54 +00:00
utils [AsmParser][TableGen] Add VariantID argument to the generated mnemonic spell check function so it can use the correct table based on variant. 2017-10-26 06:46:41 +00:00
.arcconfig project_id is from another era in phabricator land and does not provide any value. 2016-09-27 15:47:29 +00:00
.clang-format Test commit. 2014-03-02 13:08:46 +00:00
.clang-tidy .clang-tidy: correct style name is 'camelBack' not 'lowerCase'. 2016-09-13 19:04:26 +00:00
.gitignore gitignore: Ignore .vs folder (VS2017 config files) 2017-04-08 00:16:58 +00:00
CMakeLists.txt [CMake] Allow parent projects to use in-source builds 2017-10-19 00:43:48 +00:00
CODE_OWNERS.TXT Update my email addresses, NFC. 2017-10-26 10:16:54 +00:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
CREDITS.TXT Add myself to CREDITS.txt 2017-09-18 14:33:39 +00:00
LICENSE.TXT Bump year to 2017 in LICENSE.txt 2017-01-12 18:02:42 +00:00
llvm.spec.in [Sparc] Implement i64 load/store support for 32-bit sparc. 2015-08-10 19:11:39 +00:00
LLVMBuild.txt Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
README.txt Test commit access 2017-08-18 02:39:28 +00:00
RELEASE_TESTERS.TXT Update my email addresses, NFC. 2017-10-26 10:16:54 +00:00

README.txt 

Low Level Virtual Machine (LLVM)
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