[PATCH] D68542: [Mips] Always save RA when disabling frame pointer elimination

[James Clarke via Phabricator via llvm-commits]

jrtc27 added a comment.

Note that the AArch64, ARM, PowerPC (32/64/64le), RISCV (32/64) and SystemZ backends all do this (Sparc gets it by virtue of register windowing so it half counts, and similarly X86 due to the hardware stack push), at least with my C test case (which was reduced to give the IR test case addd here); Mips is currently the odd one out.


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https://reviews.llvm.org/D68542