Displaying 2 results from an estimated 2 matches for "a22570f6".
2010 Nov 08
0
[LLVMdev] [LLVMDev] Register Allocation and copy instructions
On Nov 8, 2010, at 12:04 PM, Jeff Kunkel wrote:
> Hi, while writing my register allocator, I have come across a case which confuses me because the llvm definition cannot be mapped to machine code.
>
> For instance I come across (1) and I reduce it to (2). However a copy instruction cannot move from EDX to CX. What mechanics in LLVM will tell me that I cannot make this move during
2010 Nov 08
2
[LLVMdev] [LLVMDev] Register Allocation and copy instructions
Hi, while writing my register allocator, I have come across a case which
confuses me because the llvm definition cannot be mapped to machine code.
For instance I come across (1) and I reduce it to (2). However a copy
instruction cannot move from EDX to CX. What mechanics in LLVM will tell me
that I cannot make this move during register allocation, or how can I tell
from (1) that I cannot execute