Min-Yih Hsu e620bea211 [M68k] Allow user to preserve certain registers ...

Add `-ffixed-a[0-6]` and `-ffixed-d[0-7]` and the corresponding
subtarget features to prevent certain register from being allocated.

Differential Revision: https://reviews.llvm.org/D102805

2021-05-20 13:57:22 -07:00

4.4 KiB

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