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Michael Kruse 9e52c39f0a [DeLICM] Map values hoisted by LICM back to the array. 
Implement the -polly-delicm pass. The pass intends to undo the
effects of LoopInvariantCodeMotion (LICM) which adds additional scalar
dependencies into SCoPs. DeLICM will try to map those scalars back to
the array elements they were promoted from, as long as the array
element is unused.

The is the main patch from the DeLICM/DePRE patch series. It does not
yet undo GVN PRE for which additional information about known values
is needed and does not handle PHI write accesses that have have no
target. As such its usefulness is limited. Patches for these issues
including regression tests for error situatons will follow.

Reviewers: grosser

Differential Revision: https://reviews.llvm.org/D24716

llvm-svn: 295713
 		2017-02-21 10:20:54 +00:00
clang Fix lookup through injected-class-names in implicit deduction guides in the 2017-02-21 08:42:39 +00:00
clang-tools-extra clangd/ASTManager.cpp: Appease msc19 Debug build -- Don't deref std::vector::end(). 2017-02-19 07:18:16 +00:00
compiler-rt Revert "[tsan] Provide external tags (object types) via debugging API" 2017-02-20 15:26:12 +00:00
debuginfo-tests New round of fixes for "Always compile debuginfo-tests for the host triple" 2014-10-18 23:47:59 +00:00
libclc Move BufferPtr into the block where it it being used 2017-02-12 21:33:49 +00:00
libcxx Revert "threading_support: make __thread_sleep_for be alertable" 2017-02-18 19:28:43 +00:00
libcxxabi [CMake][libcxxabi] Update the libc++ test module path 2017-02-18 04:37:59 +00:00
libunwind [libunwind][CMake] Use libc++ headers when available 2017-02-16 05:18:08 +00:00
lld [ELF] - Make ASSERT() return Dot instead of evaluated value. 2017-02-21 07:33:38 +00:00
lldb Log: Fix race in accessing the stream variable 2017-02-21 09:58:23 +00:00
llgo [llgo] Remove support for LLVM attributes 2016-12-06 19:22:04 +00:00
llvm tablegen: Fix android build 2017-02-21 09:19:41 +00:00
openmp [stats] add stats-gathering for static_steal scheduling method 2017-02-17 17:06:16 +00:00
parallel-libs [Axccel] Remove -Wno-missing-braces in build 2016-12-19 21:34:07 +00:00
polly [DeLICM] Map values hoisted by LICM back to the array. 2017-02-21 10:20:54 +00:00