[llvm-commits] [patch] Don't use FpSET_ST0_80 with ST0 and ST1 registers

[Rafael Espindola]

The attached patch changes x86's copyRegToReg to always use
FpGET_ST0_X and FpSET_ST0_X with ST0 and ST1. This then simplifies the
FP Stackifier a bit.

Is this OK? I tested it with "make check-lit", suggestions on some
additional testing are welcome.

Cheers,
-- 
Rafael Ávila de Espíndola
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