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Bjorn Pettersson d804bd17de [LoopUnroll] Handle certain PHIs in full unrolling properly 
Summary:
When reconstructing the CFG of the loop after unrolling,
LoopUnroll could in some cases remove the phi operands of
loop-carried values instead of preserving them, resulting
in undef phi values after loop unrolling.

When doing this reconstruction, avoid removing incoming
phi values for phis in the successor blocks if the successor
is the block we are jumping to anyway.

Patch-by: ebevhan

Reviewers: fhahn, efriedma

Reviewed By: fhahn

Subscribers: bjope, lebedev.ri, zzheng, dmgreen, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D66334

llvm-svn: 369886
 		2019-08-26 09:29:53 +00:00
clang [Wdocumentation] improve wording of a warning message 2019-08-25 18:20:18 +00:00
clang-tools-extra [clangd] Send highlighting diff beyond the end of the file. 2019-08-26 08:38:45 +00:00
compiler-rt hwasan: Align n_namesz and n_descsz to 4 when reading notes. 2019-08-23 23:33:26 +00:00
debuginfo-tests Make nrvo-string test more robust. 2019-06-27 20:38:37 +00:00
libclc Revert "Rename F_{None,Text,Append} to OF_{None,Text,Append}. NFC" 2019-08-05 17:23:23 +00:00
libcxx [libc++] Fix typo in documentation for LIBCXX_HERMETIC_STATIC_LIBRARY 2019-08-23 19:42:09 +00:00
libcxxabi Provide a meaningful diagnostic when LLVM_PATH doesn't point to a directory 2019-08-19 23:51:26 +00:00
libunwind [runtimes] Don't depend on libpthread on Android 2019-07-22 20:41:03 +00:00
lld [ELF] Error if --strip-all and --emit-relocs are used together 2019-08-26 06:23:53 +00:00
lldb [lldb] Construct the dummy target when the first Debugger object is constructed 2019-08-26 09:20:59 +00:00
llgo IR: Support parsing numeric block ids, and emit them in textual output. 2019-03-22 18:27:13 +00:00
llvm [LoopUnroll] Handle certain PHIs in full unrolling properly 2019-08-26 09:29:53 +00:00
openmp [OPENMP][NVPTX]Use __syncwarp() to reconverge the threads. 2019-08-23 18:34:48 +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 [Polly] Migrate llvm::make_unique to std::make_unique 2019-08-14 22:28:12 +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
.gitignore Change /build to /build* in top-level .gitignore. 2019-08-02 02:14:08 +00:00
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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.