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Florian Hahn e4cfa89915 [LV] Inform about exactly reason of loop illegality 
Currently, only the following information is provided by LoopVectorizer
in the case when the CF of the loop is not legal for vectorization:

 LV: Can't vectorize the instructions or CFG
    LV: Not vectorizing: Cannot prove legality.

But this information is not enough for the root cause analysis; what is
exactly wrong with the loop should also be printed:

 LV: Not vectorizing: The exiting block is not the loop latch.

Patch by Pavel Samolysov.

Reviewers: mkuper, hsaito, rengolin, fhahn

Reviewed By: fhahn

Differential Revision: https://reviews.llvm.org/D62311

llvm-svn: 362056
 		2019-05-30 05:03:12 +00:00
clang Add the `objc_class_stub` attribute. 2019-05-30 04:09:01 +00:00
clang-tools-extra [Index] Compute correct symbol kind for variable templates 2019-05-29 17:49:30 +00:00
compiler-rt mac: Make ubsan test config look more like asan test config 2019-05-29 18:54:28 +00:00
debuginfo-tests Move the pybool logic from CMake to Python for simplicity 2019-05-29 21:45:43 +00:00
libclc travis: Add LLVM-8 build 2019-03-27 21:28:31 +00:00
libcxx [runtimes] Check if pragma comment(lib, ...) is supported first 2019-05-30 04:40:21 +00:00
libcxxabi [runtimes] Check if pragma comment(lib, ...) is supported first 2019-05-30 04:40:21 +00:00
libunwind [runtimes] Check if pragma comment(lib, ...) is supported first 2019-05-30 04:40:21 +00:00
lld [WebAssembly] Move direct call tracking from member to local. NFC. 2019-05-29 15:41:08 +00:00
lldb DWARFDebugInfoEntry: delete unused Extract() and rename FastExtract() to Extract() 2019-05-30 01:51:16 +00:00
llgo IR: Support parsing numeric block ids, and emit them in textual output. 2019-03-22 18:27:13 +00:00
llvm [LV] Inform about exactly reason of loop illegality 2019-05-30 05:03:12 +00:00
openmp [openmp] [test] Skip kernel-breaking tests on NetBSD 2019-05-28 14:10:47 +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 [ScopBuilder] Move buildInvariantEquivalenceClasses function from ScopInfo. NFC. 2019-05-28 23:47:55 +00:00
pstl [pstl] Make the default backend be the serial backend and always provide parallel policies 2019-04-24 20:12:36 +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 Add a reduced copy of the llvm .gitignore 2019-04-09 00:52:49 +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.