[LLVMdev] default operation action
kewu.zhang at amd.com
Fri Dec 5 09:00:41 PST 2014
I noticed that the operation actions( promote/expand/custom) are set per operation basis.
Wondering if we can set it up globally?
For example, I have native supported 32 bits registers, to handle 8 bits value operations, I want to do promote.
and to support 64 bit operations, I want to expand.
If I can set up the operation actions for the same type globally, then I can avoid to list all the operations with the same action .
// expand type MVT::i64 to MVT::i32 for all the operations
setOperationAction( ISD::ADD, MVT::i64, Expand);
setOperationAction( ISD::SUB, MVT::i64, Expand);
setOperationAction( ISD::MUL, MVT::i64, Expand);
Or LLVM is smart enough to do it buy default?
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