5 Commits

Author	SHA1	Message	Date
Chris Lattner	d8288040c3	fix PR7429, a crash turning a load from a string into a float. ... llvm-svn: 108113	2010-07-12 00:22:51 +00:00
Chris Lattner	68f5ec0fa2	convert to filechecconvert to filecheckk ... llvm-svn: 108112	2010-07-12 00:21:10 +00:00
Dan Gohman	c95df8b6d8	Use opt -S instead of piping bitcode output through llvm-dis. ... llvm-svn: 81257	2009-09-08 22:34:10 +00:00
Dan Gohman	8d84372836	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	6f40163d83	Teach instcombine's visitLoad to scan back several instructions ... to find opportunities for store-to-load forwarding or load CSE, in the same way that visitStore scans back to do DSE. Also, define a new helper function for testing whether the addresses of two memory accesses are known to have the same value, and use it in both visitStore and visitLoad. These two changes allow instcombine to eliminate loads in code produced by front-ends that frequently emit obviously redundant addressing for memory references. llvm-svn: 57608	2008-10-15 23:19:35 +00:00