llc:tldr:1bca4
The command "llc ${filename-ll}" is a Linux command that is used for compiling LLVM intermediate representation (IR) to machine code for a specified filename.
Here's how the individual components of the command work:
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"llc" is the command itself, which stands for "LLVM (Low Level Virtual Machine) compiler". It is responsible for compiling the LLVM IR code to target-specific machine code.
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"${filename-ll}" is a variable that represents the name of the file to be compiled. It is enclosed in curly braces and preceded by a dollar sign ($). The "-ll" suffix suggests that the file is in LLVM IR format.
The command, as a whole, instructs the llc compiler to take the specified file in LLVM IR format and compile it into machine code. The resulting output will likely have an extension indicating the target format, such as ".o" for object files or ".s" for assembly code.