5 Commits

Author	SHA1	Message	Date
Evan Cheng	d4fe387eb8	Enable i16 to i32 promotion by default. ... llvm-svn: 102493	2010-04-28 08:30:49 +00:00
Chris Lattner	2b798aafd0	make these less sensitive to asm verbose changes by disabling it for them. ... llvm-svn: 95175	2010-02-03 00:48:53 +00:00
Evan Cheng	eb82c3743a	Turn on post-alloc scheduling for x86. ... llvm-svn: 84431	2009-10-18 19:57:27 +00:00
Daniel Dunbar	a953c39b9e	Eliminate uses of %prcontext. ... - I'd appreciate it if someone else eyeballs my changes to make sure I captured the intent of the test. llvm-svn: 81083	2009-09-05 11:35:16 +00:00
Evan Cheng	a36c6c6819	It has finally happened. Spiller is now using live interval info. ... This fixes a very subtle bug. vr defined by an implicit_def is allowed overlap with any register since it doesn't actually modify anything. However, if it's used as a two-address use, its live range can be extended and it can be spilled. The spiller must take care not to emit a reload for the vn number that's defined by the implicit_def. This is both a correctness and performance issue. llvm-svn: 69743	2009-04-21 22:46:52 +00:00