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e4ccb8ba03
Use VOP3 add/addc like usual. This has some tradeoffs. Inline immediates fold a little better, but other constants are worse off. SIShrinkInstructions could be made smarter to handle these cases. This allows us to avoid selecting scalar adds where we need to track the carry in scc and replace its users. This makes it easier to use the carryless VALU adds. llvm-svn: 318340 |
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