3 Commits

Author	SHA1	Message	Date
John McCall	a56b8f4800	Somehow I was getting reasonable results for the test cases I was interested ... in despite not ever incrementing any path costs, so that the only nonzero costs arose from the all-left path in the first column. Anyway. Perform the diff starting from the beginning of the block to avoid capturing (say) loads of allocas. Vastly improves diff results on code that hasn't been mem2reg'ed. llvm-svn: 109741	2010-07-29 08:53:59 +00:00
John McCall	f1e24e1d2b	Cache the result of errs() and implement formatted logging. ... llvm-svn: 109740	2010-07-29 08:14:41 +00:00
John McCall	edc50f3f5b	Add the llvm-diff tool, which performs a relatively naive structural ... diff of a function. There's a lot of cruft in the current version, and it's pretty far from perfect, but it's usable. Currently only capable of comparing functions. Currently ignores metadata. Currently ignores most attributes of functions and instructions. Patches welcome. llvm-svn: 109739	2010-07-29 07:53:27 +00:00