search for: lshri

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2007 Mar 22
1
[LLVMdev] Backend: 2 address + 17bit immediate
...l form. Clearly I also need a way to load a 32 bit constant value into a register in order to be able to address more than 64K of memory. I know the PPC does something similar ... So for example for SABRE this instruction output would perform the necessary ... MOVri %a, HI16(32 bit constant) LSHri %a,16 ORri %a, LO16(same 32 bit constant) LD %d, %a // ie load the contents of the memory at the address stored in %a into register %d where the HI/LO16 are performed at code generation by LLVM. I'm a little confused as to how to specify this as a pattern in tablegen syntax, even with the P...