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Nikita Popov 221f3fc750 [InstSimplify] Simplify saturating add/sub + icmp 
If a saturating add/sub has one constant operand, then we can
determine the possible range of outputs it can produce, and simplify
an icmp comparison based on that.

The implementation is based on a similar existing mechanism for
simplifying binary operator + icmps.

Differential Revision: https://reviews.llvm.org/D55735

llvm-svn: 349369
 		2018-12-17 17:45:18 +00:00
clang [CodeComplete] Fix test failure on different host and target configs 2018-12-17 16:37:52 +00:00
clang-tools-extra [clangd] Change diskbackedstorage to be atomic 2018-12-17 12:38:22 +00:00
compiler-rt Improve the comment in previous 2018-12-16 10:24:06 +00:00
debuginfo-tests Set config.lit_tools_dir, which is needed by lit.llvm.initialize. 2018-11-06 21:54:27 +00:00
libclc travis: Add cmake build 2018-11-27 16:07:21 +00:00
libcxx Expect Clang diagnostics in std::launder test 2018-12-17 16:56:24 +00:00
libcxxabi [libcxx] Remove bad_array_length 2018-11-29 19:44:57 +00:00
libunwind [AArch64][libunwind] Unwinding support for return address signing with B Key 2018-12-17 11:43:24 +00:00
lld [ELF][ARM] Add support for architecture v6m thunks 2018-12-17 10:33:47 +00:00
lldb Make crashlog.py work or binaries with spaces in their names 2018-12-17 17:26:04 +00:00
llgo Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
llvm [InstSimplify] Simplify saturating add/sub + icmp 2018-12-17 17:45:18 +00:00
openmp [OpenMP] Fixes for LIBOMP_OMP_VERSION=45/40 2018-12-15 09:23:39 +00:00
parallel-libs Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
polly [CMake] Fix generation of exported targets in build directory 2018-11-06 15:18:17 +00:00
README.md Update the project name in README.md 2018-10-19 00:03:01 +00:00

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.