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Serguei Katkov ec7029c286 Re-apply [SCEV] Fix isLoopEntryGuardedByCond usage 
ScalarEvolution::isKnownPredicate invokes isLoopEntryGuardedByCond without check
that SCEV is available at entry point of the loop. It is incorrect and fixed by patch.

To bugs additionally fixed:
assert is moved after the check whether loop is not a nullptr.
Usage of isLoopEntryGuardedByCond in ScalarEvolution::isImpliedCondOperandsViaNoOverflow
is guarded by isAvailableAtLoopEntry.

Reviewers: sanjoy, mkazantsev, anna, dorit, reames
Reviewed By: mkazantsev
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D42417

llvm-svn: 324204
 		2018-02-05 05:49:47 +00:00
clang Recommit rL323890: [AMDGPU] Add ds_fadd, ds_fmin, ds_fmax builtins functions 2018-02-04 22:32:07 +00:00
clang-tools-extra [clangd] Fix ExternC test broken by r324081 2018-02-02 17:01:36 +00:00
compiler-rt Use NULL instead of nullptr in invalid-pointer-pairs-compare-null.cc; nullptr is not available on older Darwin systems. 2018-02-02 20:42:29 +00:00
debuginfo-tests [debuginfo-tests] Support moving debuginfo-tests to llvm/projects 2017-12-12 16:54:20 +00:00
libclc half_powr: Implement using powr 2018-02-01 03:00:35 +00:00
libcxx Fix initialization of array<const T, 0> with GCC. 2018-02-04 08:02:35 +00:00
libcxxabi [demangler] return early if conditional expr parsing failed 2018-02-05 02:34:41 +00:00
libunwind [cmake] [libunwind] LLVM_FOUND isn't always set, so just test if 2018-01-27 19:31:44 +00:00
lld [WebAssembly] Refactor linker-generated symbols. NFC. 2018-02-02 22:59:56 +00:00
lldb Turn off the deprecated ALWAYS_SEARCH_USER_PATHS feature 2018-02-03 00:37:46 +00:00
llgo irgen: Create functions instead of global variables for builtin hash and equal algorithms. 2017-06-04 22:11:28 +00:00
llvm Re-apply [SCEV] Fix isLoopEntryGuardedByCond usage 2018-02-05 05:49:47 +00:00
openmp [OpenMP-RT] Fix debug string for NVPTX runtime library 2018-02-01 16:12:16 +00:00
parallel-libs [Axccel] Remove -Wno-missing-braces in build 2016-12-19 21:34:07 +00:00
polly [ScopBuilder] Make -polly-stmt-granularity=scalar-indep the default. 2018-02-03 06:59:47 +00:00
README.md Add an svn project to contain the files that appear at the root of the 2017-10-19 21:09:49 +00:00

README.md

Low Level Virtual Machine (LLVM)

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