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Craig Topper 7a8e74775c [X86] Add DAG combine to merge vzext_movl with the various fp<->int conversion operations that only write the lower 64-bits of an xmm register and zero the rest. 
Summary: We have isel patterns for this, but we're missing some load patterns and all broadcast patterns. A DAG combine seems like a better fit for this.

Reviewers: RKSimon, spatel

Reviewed By: RKSimon

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D56971

llvm-svn: 352260
 		2019-01-26 01:17:09 +00:00
clang Attempt to fix build on Windows with LLVM_ENABLE_PIC=OFF 2019-01-25 23:37:57 +00:00
clang-tools-extra [clang-tidy] fix unit tests for dropped _Float16 support in X86 2019-01-25 19:05:12 +00:00
compiler-rt Fix XRayTest link on FreeBSD (and likely NetBSD too) 2019-01-25 19:36:47 +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 Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
libcxx Mark awk.pass.cpp as XFAIL for NetBSD 2019-01-24 20:26:02 +00:00
libcxxabi [libcxxabi] Support building hermetic static library 2019-01-24 03:18:29 +00:00
libunwind [libunwind] Use placement new to avoid dependency C++ library 2019-01-25 21:39:46 +00:00
lld Remove dead declaration. 2019-01-26 00:31:49 +00:00
lldb [lldb] Update shebang python2 -> python 2019-01-26 01:05:02 +00:00
llgo Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
llvm [X86] Add DAG combine to merge vzext_movl with the various fp<->int conversion operations that only write the lower 64-bits of an xmm register and zero the rest. 2019-01-26 01:17:09 +00:00
openmp NFC: fixed formatting to be consistent across the file 2019-01-21 16:11:43 +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 Fix/unify top comment in lib/Analysis/PolyhedralInfo.cpp 2019-01-22 12:18:38 +00:00
pstl Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
.arcconfig Add an .arcconfig for the top of the git monorepo. 2019-01-11 16:27:14 +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.