Daniel Dunbar 245df5f4ac ccc: Darwin/X86: gcc compatibility, only add ... '-feliminate-unused-debug-symbols' in reponse to '-g' (not '-g*'). llvm-svn: 62357		2009-01-16 21:07:21 +00:00
clang	ccc: Darwin/X86: gcc compatibility, only add	2009-01-16 21:07:21 +00:00
llvm	CreateVirtualRegisters does trivial copy coalescing. If a node def is used by a single CopyToReg, it reuses the virtual register assigned to the CopyToReg. This won't work for SDNode that is a clone or is itself cloned. Disable this optimization for those nodes or it can end up with non-SSA machine instructions.	2009-01-16 20:57:18 +00:00