llvm-project

f6260daf - [SHT_LLVM_BB_ADDR_MAP] Support decompressing the SHT_LLVM_BB_ADDR_MAP section. (#142825)

[SHT_LLVM_BB_ADDR_MAP] Support decompressing the SHT_LLVM_BB_ADDR_MAP section. (#142825) Compression of SHT_LLVM_BB_ADDR_MAP with zstd can give 3X compression ratio, which is especially beneficial with PGO_analysis_map. To read the data back, we must decompress it. Though we can use llvm-objcopy to do this, it's much better to do this decompression internally in the library API.