Insert reload instruction for \p PhysReg before \p Before. seems the reverse of spill

Insert reload instruction for \p PhysReg before \p Before.

===----------------------------------------------------------------------===// Routines to update the CFG and SSA information before removing dead co

rotate prt, and return new prt, namyly the original chd

===----------------------------------------------------------------------===// Pass Manager integration code ===------------------------------------

run, the interface, as is des//what des??

support matchall function eg, 'p.d' matchs 'pad' , 'pid'

Changes operand OpNum in MI the refer the PhysReg, considering subregs. This may invalidate any operand pointers. Return true if the operand kills it

Changes operand OpNum in MI the refer the PhysReg, considering subregs. This may invalidate any operand pointers. Return true if the operand kills it

Insert spill instruction for \p AssignedReg before \p Before. Update DBG_VALUEs with \p VirtReg operands with the stack slot.

Insert spill instruction for \p AssignedReg before \p Before. Update DBG_VALUEs with \p VirtReg operands with the stack slot.

Spill all dirty virtregs without killing them.

Spill all dirty virtregs without killing them.

This method spills the value specified by VirtReg into the corresponding stack slot if needed.

This method spills the value specified by VirtReg into the corresponding stack slot if needed.

Returns if there is any word in the trie that starts with the given prefix. :type prefix: str :rtype: bool

Check if any of \p VirtReg's definitions is a copy. If it is follow the chain of copies to check whether we reach a physical register we can coalesce

A dead region is the set of dead blocks with a common live post-dominator. this is updateDeadRegions, seems it just do some cleanup to make the follow

Handle the direct use of a physical register. Check that the register is not used by a virtreg. Kill the physreg, marking it free. This may add impli

Handle the direct use of a physical register. Check that the register is not used by a virtreg. Kill the physreg, marking it free. This may add impli

define _DEBUG_PRINT_N_(N) {\ //std::cout << std::string(N, '-');\ //}

code optim test 1 */