Jim Grosbach fc1a161d76 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161888 91177308-0d34-0410-b5e6-96231b3b80d8		2012-08-14 19:06:05 +00:00
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ARMDisassembler.cpp	Switch the fixed-length disassembler to be table-driven.	2012-08-14 19:06:05 +00:00
CMakeLists.txt	build/CMake: Finish removal of add_llvm_library_dependencies.	2011-11-29 19:25:30 +00:00
LLVMBuild.txt	ARMDisassembler: drop bogus dependency on ARMCodeGen	2012-04-03 15:48:14 +00:00
Makefile	Re-enable ARM/Thumb disassembler and add a workaround for a memcpy() call in	2010-04-07 20:53:12 +00:00