Displaying 2 results from an estimated 2 matches for "48f84cd7".
2010 Apr 29
0
[LLVMdev] Default behavior of DeadMachineInstructionElim deletes all instructions
...n false;
Returning false from MRI->use_nodbg_empty means the instruction has a use, and it is not deleted. That's what's supposed to happen.
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2010 Apr 14
2
[LLVMdev] Default behavior of DeadMachineInstructionElim deletes all instructions
Dale,
Yeah that is correct, so that isn't the problem, not sure why I was thinking it is. The !MRI->use_no_dbg_empty(Reg) seems to be correct and the problem is LivePhysRegs[Reg] always returning false. I've looked into this more and there is a part where I'm working with physical registers.
If there is a function call, there is a copy from virtual register space to the functions