8b4bd09e22
When trying to combine a DAG that builds a vector out of sign-extensions of vector extracts, the code assumes legal input types. Due to that, we have to disable this combine prior to legalization. In some cases, the DAG will look slightly different after legalization so account for that in the matching code. This is a fix for https://bugs.llvm.org/show_bug.cgi?id=38087 Differential Revision: https://reviews.llvm.org/D49080 llvm-svn: 339769
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.