Craig Topper e0cc556ad4 [IndVars] Teach widenLoopCompare to use sext if narrow IV is positive and other operand is already sext. (#142703) ...

This prevents us from ending up with (zext (sext X)). The zext will
require an instruction on targets where zext isn't free like RISC-V.

2025-06-10 12:52:39 -07:00

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