Evan Cheng 48352d7a71 Copy coalescing change to prevent a physical register from being pin to a ... long live interval that has low usage density. 1. Change order of coalescing to join physical registers with virtual registers first before virtual register intervals become too long. 2. Check size and usage density to determine if it's worthwhile to join. 3. If joining is aborted, assign virtual register live interval allocation preference field to the physical register. 4. Register allocator should try to allocate to the preferred register first (if available) to create identify moves that can be eliminated. llvm-svn: 36218		2007-04-17 20:32:26 +00:00
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Analysis	Remove use of Instruction::getNext	2007-04-17 17:52:45 +00:00
AsmParser	Regenerate	2007-04-16 22:02:23 +00:00
Bytecode	Make long line fit in 80 cols.	2007-04-16 23:32:28 +00:00
CodeGen	Copy coalescing change to prevent a physical register from being pin to a	2007-04-17 20:32:26 +00:00
Debugger	Make sure temporary data is not used past its life span.	2007-04-08 20:10:14 +00:00
ExecutionEngine	eliminate use of Instruction::getPrev(). Patch by Gabor Greif in 2005.	2007-04-17 17:38:28 +00:00
Linker	Implement the "thread_local" keyword.	2007-04-12 18:32:50 +00:00
Support	Fix PR1329.	2007-04-14 21:50:21 +00:00
System	Hack to get sys::Path to recognize macho dylibs.	2007-04-11 03:15:35 +00:00
Target	Change getAllocatableSet() so it returns allocatable registers for a specific register class.	2007-04-17 20:23:34 +00:00
Transforms	Spell doFinalization right, so that it is a proper virtual override and	2007-04-17 18:21:36 +00:00
VMCore	eliminate a use of Instruction::getPrev(), patch by Gabor Greif in 2005.	2007-04-17 17:36:12 +00:00
Makefile	Changes to support making the shift instructions be true BinaryOperators.	2007-02-02 02:16:23 +00:00