[PATCH] riscv: eliminate unreliable __builtin_frame_address(1)

[Andreas Schwab]

On Jan 17 2022, Jessica Clarke wrote:

> Yes, this is a bug, that is always wrong. LLVM gets this right.

Is that an ABI requirement?  In case of a leaf function, gcc saves the
caller's frame pointer in the first slot, not the second (it doesn't
save the return address).

-- 
Andreas Schwab, schwab at linux-m68k.org
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