-- horrow show
freeReg,
globalRegMaybe,
- get_GlobalReg_reg_or_addr,
allocatableRegs
)
import RegClass
import Size
-import CgUtils ( get_GlobalReg_addr )
import BlockId
-import Cmm
+import OldCmm
import CLabel ( CLabel )
import Unique
#endif /* powerpc_TARGET_ARCH */
--- We map STG registers onto appropriate CmmExprs. Either they map
--- to real machine registers or stored as offsets from BaseReg. Given
--- a GlobalReg, get_GlobalReg_reg_or_addr produces either the real
--- register it is in, on this platform, or a CmmExpr denoting the
--- address in the register table holding it.
--- (See also get_GlobalReg_addr in CgUtils.)
-
-get_GlobalReg_reg_or_addr :: GlobalReg -> Either Reg CmmExpr
-get_GlobalReg_reg_or_addr mid
- = case globalRegMaybe mid of
- Just rr -> Left rr
- Nothing -> Right (get_GlobalReg_addr mid)
-
-
-- allocatableRegs is allMachRegNos with the fixed-use regs removed.
-- i.e., these are the regs for which we are prepared to allow the
-- register allocator to attempt to map VRegs to.