Jim Grosbach 53796945f5 Switch the fixed-length disassembler to be table-driven. ... Refactor the TableGen'erated fixed length disassemblmer to use a table-driven state machine rather than a massive set of nested switch() statements. As a result, the ARM Disassembler (ARMDisassembler.cpp) builds much more quickly and generates a smaller end result. For a Release+Asserts build on a 16GB 3.4GHz i7 iMac w/ SSD: Time to compile at -O2 (averaged w/ hot caches): Previous: 35.5s New: 8.9s TEXT size: Previous: 447,251 New: 297,661 Builds in 25% of the time previously required and generates code 66% of the size. Execution time of the disassembler is only slightly slower (7% disassembling 10 million ARM instructions, 19.6s vs 21.0s). The new implementation has not yet been tuned, however, so the performance should almost certainly be recoverable should it become a concern. llvm-svn: 161888		2012-08-14 19:06:05 +00:00
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llvm	Switch the fixed-length disassembler to be table-driven.	2012-08-14 19:06:05 +00:00
llvm-c	A couple of addition comment fixes	2012-08-10 18:30:44 +00:00