9f38dde230
* config/rs6000/rs6000.md (cmpmemsi): New define_expand. * config/rs6000/rs6000.c (expand_block_compare): New function used by cmpmemsi pattern to do builtin expansion of memcmp (). (compute_current_alignment): Add helper function for expand_block_compare used to compute alignment as the compare proceeds. (select_block_compare_mode): Used by expand_block_compare to select the mode used for reading the next chunk of bytes in the compare. (do_load_for_compare): Used by expand_block_compare to emit the load insns for the compare. (rs6000_emit_dot_insn): Moved this function to avoid a forward reference from expand_block_compare (). * config/rs6000/rs6000-protos.h (expand_block_compare): Add a prototype for this function. * config/rs6000/rs6000.opt (mblock-compare-inline-limit): Add a new target option for controlling how much code inline expansion of memcmp() will be allowed to generate. From-SVN: r240455 |
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| INSTALL | ||
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README
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