103 Commits

Author	SHA1	Message	Date
Evan Cheng	06587497dc	Avoid splitting an interval multiple times; avoid splitting re-materializable val# (for now). ... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58068 91177308-0d34-0410-b5e6-96231b3b80d8	2008-10-24 02:05:00 +00:00
Evan Cheng	f5cd4f0d70	Committing a good chunk of the pre-register allocation live interval splitting pass. It's handling simple cases and appear to do good things. Next: avoid splitting an interval multiple times; renumber registers when possible; record stack slot live intervals for coloring; rematerialize defs when possible. ... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58044 91177308-0d34-0410-b5e6-96231b3b80d8	2008-10-23 20:43:13 +00:00
Evan Cheng	09e8ca8a58	Add skeleton for the pre-register allocation live interval splitting pass. ... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57847 91177308-0d34-0410-b5e6-96231b3b80d8	2008-10-20 21:44:59 +00:00