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Commit adca8209 authored by Simon Pilgrim's avatar Simon Pilgrim
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[TTI] Add generic SADDSAT/SSUBSAT costs 

Add generic costs calculation for SADDSAT/SSUBSAT intrinsics, this uses generic costs for sadd_with_overflow/ssub_with_overflow, an extra sign comparison + a selects based on the sign/overflow.

This completes PR40316

Differential Revision: https://reviews.llvm.org/D57239

llvm-svn: 352315
parent c09a4db3
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