5 Commits

Author	SHA1	Message	Date
Dan Gohman	a484d17ec5	Make these tests more interesting by using ... -verify-dom-info and -verify-loop-info, which enable additional (expensive) consistency checks. llvm-svn: 85017	2009-10-24 23:23:04 +00:00
Dan Gohman	1880092722	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the ... input filename so that opt doesn't print the input filename in the output so that grep lines in the tests don't unintentionally match strings in the input filename. llvm-svn: 81537	2009-09-11 18:01:28 +00:00
Dan Gohman	4f2527cd6d	Convert a few more opt | llvm-dis to opt -S. ... llvm-svn: 81261	2009-09-08 22:41:33 +00:00
Dan Gohman	9737a63ed8	Change these tests to feed the assembly files to opt directly, instead ... of using llvm-as, now that opt supports this. llvm-svn: 81226	2009-09-08 16:50:01 +00:00
Dan Gohman	c8ca49659a	Teach LoopSimplify how to merge multiple loop exits into a single exit, ... when one of them can be converted to a trivial icmp and conditional branch. This addresses what is essentially a phase ordering problem. SimplifyCFG knows how to do this transformation, but it doesn't do so if the primary block has any instructions in it other than an icmp and a branch. In the given testcase, the block contains other instructions, however they are loop-invariant and can be hoisted. SimplifyCFG doesn't have LoopInfo though, so it can't hoist them. And, it's important that the blocks be merged before LoopRotation, as it doesn't support multiple-exit loops. llvm-svn: 74396	2009-06-27 21:30:38 +00:00