Craig Topper a2d717d303
[RISCV] Prevent copying dummy_reg_pair_with_x0 in RISCVMakeCompressible. (#141261)
dummy_reg_pair_with_x0 is the odd subregister of X0_Pair, but it isn't a
real register. We need to copy X0 instead since X0_Pair reads as 0.
2025-05-23 11:35:49 -07:00
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