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Simon Pilgrim 858303b827 [SelectionDAG] Add FoldBUILD_VECTOR to simplify new BUILD_VECTOR nodes 
Similar to FoldCONCAT_VECTORS, this patch adds FoldBUILD_VECTOR to simplify cases that can avoid the creation of the BUILD_VECTOR - if all the operands are UNDEF or if the BUILD_VECTOR simplifies to a copy.

This exposed an assumption in some AMDGPU code that getBuildVector was guaranteed to be a BUILD_VECTOR node that I've tried to handle.	
	
Differential Revision: https://reviews.llvm.org/D53760

llvm-svn: 345578
 		2018-10-30 10:32:11 +00:00
clang Remove trailing space from clang/Basic/LangOptions.h 2018-10-30 09:42:49 +00:00
clang-tools-extra [clang-query] Add non-exclusive output API 2018-10-29 18:59:56 +00:00
compiler-rt Handle pthread_sigmask in DemangleFunctionName() 2018-10-30 08:51:34 +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 Unify definition of _LIBCPP_BEGIN/END_NAMESPACE_STD 2018-10-30 02:02:00 +00:00
libcxxabi [libc++abi] Provide __cxa_thread_atexit on Fuchsia 2018-10-29 20:20:26 +00:00
libunwind [CMake] Link to compiler-rt if LIBUNWIND_USE_COMPILER_RT is ON. 2018-10-08 18:35:00 +00:00
lld AMDGPU: Switch some lld tests to v2 2018-10-29 19:59:12 +00:00
lldb [x86] Fix issues with a realigned stack in MSVC compiled applications 2018-10-30 10:07:08 +00:00
llgo Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
llvm [SelectionDAG] Add FoldBUILD_VECTOR to simplify new BUILD_VECTOR nodes 2018-10-30 10:32:11 +00:00
openmp remove duplicate omp_control_tool export to fix windows build 2018-10-25 11:04:01 +00:00
parallel-libs Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
polly [TI removal] Generically discuss terminators rather than use the soon to 2018-10-18 07:43:30 +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.