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Thomas Lively 16c349d892 [Intrinsic] Add llvm.minimum and llvm.maximum instrinsic functions 
Summary:
These new intrinsics have the semantics of the `minimum` and `maximum`
operations specified by the latest draft of IEEE 754-2018. Unlike
llvm.minnum and llvm.maxnum, these new intrinsics propagate NaNs and
always treat -0.0 as less than 0.0. `minimum` and `maximum` lower
directly to the existing `fminnan` and `fmaxnan` ISel DAG nodes. It is
safe to reuse these DAG nodes because before this patch were only
emitted in situations where there were known to be no NaN arguments or
where NaN propagation was correct and there were known to be no zero
arguments. I know of only four backends that lower fminnan and
fmaxnan: WebAssembly, ARM, AArch64, and SystemZ, and each of these
lowers fminnan and fmaxnan to instructions that are compatible with
the IEEE 754-2018 semantics.

Reviewers: aheejin, dschuff, sunfish, javed.absar

Subscribers: kristof.beyls, dexonsmith, kristina, llvm-commits

Differential Revision: https://reviews.llvm.org/D52764

llvm-svn: 344437
 		2018-10-13 07:21:44 +00:00
clang [OPENMP][NVPTX]Reduce memory usage in target region. 2018-10-12 20:19:59 +00:00
clang-tools-extra [clangd] NFC fix semicolon warning 2018-10-12 17:47:43 +00:00
compiler-rt [lit] Support the `%shared_libasan` lit substitution on Apple platforms. 2018-10-12 23:36:23 +00:00
debuginfo-tests Revert "(Retry) Add a basic integration test for C++ smart pointers" 2018-08-20 19:53:33 +00:00
libclc configure: Rework support for gfx9+ devices that were added post LLVM 3.9 2018-09-15 22:02:01 +00:00
libcxx One more local type warning removed from the tests. NFC 2018-10-12 21:59:32 +00:00
libcxxabi Override libcxxabi's .clang-format in the demangle directory 2018-10-11 23:30:56 +00:00
libunwind [CMake] Link to compiler-rt if LIBUNWIND_USE_COMPILER_RT is ON. 2018-10-08 18:35:00 +00:00
lld Simplify. NFC. 2018-10-12 22:44:06 +00:00
lldb Add REQUIRES: lld to SymbolFileNativePDB tests. 2018-10-12 23:07:32 +00:00
llgo Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
llvm [Intrinsic] Add llvm.minimum and llvm.maximum instrinsic functions 2018-10-13 07:21:44 +00:00
openmp [OpenMP] Convert KMP_DYNAMIC_LIB to a 0 or 1 guard everywhere 2018-10-05 17:59:39 +00:00
parallel-libs Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
polly Fix another error related to YAML quoting. 2018-10-12 17:28:39 +00:00
README.md
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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.