4 Commits

Author	SHA1	Message	Date
Dan Gohman	36a0947820	Eliminate more uses of llvm-as and llvm-dis. ... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81290 91177308-0d34-0410-b5e6-96231b3b80d8	2009-09-08 23:54:48 +00:00
Evan Cheng	fb11288109	Model inline asm constraint which ties an input to an output register as machine operand TIED_TO constraint. This eliminated the need to pre-allocate registers for these. This also allows register allocator can eliminate the unneeded copies. ... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67512 91177308-0d34-0410-b5e6-96231b3b80d8	2009-03-23 08:01:15 +00:00
Chris Lattner	0fe71e9bb1	Treat clobber operands like early clobbers: if we have ... any, we force sdisel to do all regalloc for an asm. This leads to gross but correct codegen. This fixes the rest of PR2078. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47454 91177308-0d34-0410-b5e6-96231b3b80d8	2008-02-21 19:43:13 +00:00
Chris Lattner	7cbeb2431c	Fix a (harmless) but where vregs were added to the used reg lists for ... inline asms. Fix PR2078 by marking aliases of registers used when a register is marked used. This prevents EAX from being allocated when AX is listed in the clobber set for the asm. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47426 91177308-0d34-0410-b5e6-96231b3b80d8	2008-02-21 04:55:52 +00:00