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When the input to ptest_first is a vector concat and the mask is all active, performPTestFirstCombine returns a ptest_first using the first operand of the concat, looking through any reinterpret casts. This allows optimizePTestInstr to later remove the ptest when the first operand is a flag setting instruction such as whilelo.
The LLVM Compiler Infrastructure
Welcome to the LLVM project!
This repository contains the source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and run-time environments.
The LLVM project has multiple components. The core of the project is itself called "LLVM". This contains all of the tools, libraries, and header files needed to process intermediate representations and convert them into object files. Tools include an assembler, disassembler, bitcode analyzer, and bitcode optimizer.
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