[llvm-dev] How to remove a memory slot while allocating a register

[Kumail Ahmed via llvm-dev]

Hi everyone,

Suppose I have the following IR structure:


 BLOCK0:
          REG_X0 = 3
          STORE_TO_MEMORY_SLOT_M0 = X0;

BLOCK1:
        //    several lines of ir code
        //    several lines of ir code
        //    several lines of ir code
       REG_XX = LOAD_FROM_MEMORY_SLOT_MO
       LOOP_BACK_TO_BLOCK1  REG_XX


How can I remove the load/store memory slots and directly use register X0
in the loop instruction?


Best Regards,
Kumail Ahmed
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