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Simon Pilgrim 42010dc810 [X86][SSE] Don't merge known undef/zero elements into target shuffle masks. 
Replaces setTargetShuffleZeroElements with getTargetShuffleAndZeroables which reports the Zeroable elements but doesn't merge them into the decoded target shuffle mask (the merging has been moved up into getTargetShuffleInputs until we can get rid of it entirely).

This is part of the work to fix PR43024 and allow us to use SimplifyDemandedElts to simplify shuffle chains - we need to get to a point where the target shuffle mask isn't adjusted by its source inputs but instead we cache them in a parallel Zeroable mask.

llvm-svn: 373867
 		2019-10-06 19:06:45 +00:00
clang Implements CWG 1601 in [over.ics.rank/4.2] 2019-10-06 18:50:40 +00:00
clang-tools-extra [clang-tools-extra] [cmake] Link against libclang-cpp whenever possible 2019-10-04 20:30:02 +00:00
compiler-rt [scudo][standalone] Make malloc_info return a minimal XML 2019-10-04 15:46:34 +00:00
debuginfo-tests Make nrvo-string test more robust. 2019-06-27 20:38:37 +00:00
libc Add few docs and implementation of strcpy and strcat. 2019-10-04 17:30:54 +00:00
libclc travis: Add LLVM 9 build 2019-09-27 05:58:15 +00:00
libcxx [libc++] Guard cxx_experimental settings behind LIBCXX_ENABLE_EXPERIMENTAL_LIBRARY 2019-10-04 23:08:20 +00:00
libcxxabi [libc++abi] Link against libSystem on Apple platforms 2019-10-04 18:32:46 +00:00
libunwind [libunwind] Adjust libunwind_01.pass.cpp test for ARM EHABI 2019-10-03 17:01:04 +00:00
lld [LLD] [COFF] Always demangle the __imp_ prefix to __declspec(dllimport) 2019-10-04 19:47:59 +00:00
lldb Do not install lit-cpuid 2019-10-05 08:22:40 +00:00
llgo IR: Support parsing numeric block ids, and emit them in textual output. 2019-03-22 18:27:13 +00:00
llvm [X86][SSE] Don't merge known undef/zero elements into target shuffle masks. 2019-10-06 19:06:45 +00:00
openmp [libomptarget][nfc] Update remaining uint32 to use lanemask_t 2019-10-04 22:30:28 +00:00
parallel-libs Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
polly [Alignment][NFC] Remove StoreInst::setAlignment(unsigned) 2019-10-03 13:17:21 +00:00
pstl [pstl] Allow customizing whether per-TU insulation is provided 2019-08-13 12:49:00 +00:00
.arcconfig Update monorepo .arcconfig with new project callsign. 2019-01-31 14:34:59 +00:00
.clang-format Add .clang-tidy and .clang-format files to the toplevel of the 2019-01-29 16:43:16 +00:00
.clang-tidy Disable tidy checks with too many hits 2019-02-01 11:20:13 +00:00
.git-blame-ignore-revs Add LLDB reformatting to .git-blame-ignore-revs 2019-09-04 09:31:55 +00:00
.gitignore Add a newline at the end of the file 2019-09-04 06:33:46 +00:00
README.md
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README.md

The LLVM Compiler Infrastructure

This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments.