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...de note, it would be great if you could answer some doubts i wrote in the "Register design decision for backend" thread. Thanks for your help. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20100911/c08193b7/attachment.html>

>>Note that the isCommutable flag is only really useful for two-address instructions. If the two inputs are not constrained, nothing is really won by swapping them. Ahh i see, good to know that. >> Does the -view-*-dags output look correct? They do look correct, there are three Xmul_lohi blocks, one returns the low part copied into R14 and the rest of combinations get added and merged