The llvm.cl opt is a command-line driver tool in the LLVM compiler infrastructure that is used to optimize and transform LLVM bitcode files. It allows users to specify a series of optimization passes to apply to the input bitcode file.
Here are some examples of how to use llvm.cl opt:
1. To run a basic set of optimizations on an input file:
llvm-opt -O3 input.bc -o output.bc
This command will apply the -O3 optimization level to the input file and output the optimized code to the output file.
Package library: LLVM
2. To run a specific optimization pass on an input file:
llvm-opt -mem2reg input.bc -o output.bc
This command will apply the mem2reg optimization pass to the input file, which is used to promote memory accesses to registers where possible.
Package library: LLVM
3. To view a list of available optimization passes:
llvm-opt -pass-list
This command will display a list of all the available optimization passes that can be used with llvm-opt.
Package library: LLVM
Overall, the llvm.cl opt tool is an essential component of the LLVM compiler infrastructure and is widely used by developers for optimizing and transforming LLVM bitcode files. Its rich feature set and ease of use make it an excellent choice for optimizing large-scale projects.
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