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For reg+imm SVE addressing mode imm is implictly scaled by VL, making them impractical for truely immediate offsets. However, if the offset can be unscaled based on the storage element type we can use the reg+reg SVE addressing mode and thus either reduce the number of generate add instructions or replace them with a mov instruction that can be hoisted from the hot code path. Differential Revision: https://reviews.llvm.org/D106744 |
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