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techinfo
2009 Nov 26
0
[LLVMdev] Question about dag-combine pass
...ound that the dag-combining is different for
each architecture.
Q1. where is the correct place in the source code that the truncate
operation is gone during the dag combining pass.
Q2. Why that the dag-combinig is different for each architecture.
Q3. I don't want to use that kind of store/load techiniq to mimic
truncation, but just replace to some instruction such as
'CONVERT_i32_to_i8'. What is good way to do?
Thanks,
Jiin
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