================
@@ -1169,7 +1169,11 @@
DEFINE_LIBUNWIND_FUNCTION(_ZN9libunwind15Registers_riscv6jumptoEv)
ILOAD x\i, (RISCV_ISIZE * \i)(a0)
.endr
// skip a0 for now
+#if defined(__riscv_abi_rve)
----------------
lenary wrote:
> Okay, I apparently did not realize that you can explicitly force
> `-march=rv32i -mabi=ilp32e` in which case clang will indeed start using
> x16-x31 as temporaries. This means that `__riscv_32e` is probably the correct
> define to be checking. I will update the PR.
Yeah, the intention here is that you should be able to use an E-abi library on
the I architecture, without modification. If you compile your app for the I
architecture to get additional temporaries, then you need to make sure you use
a libunwind that knows about the additional temporaries it might need to
restore.
> Incidentally, does this mean that MIPS soft-float-ABI-but-FPU-enabled might
> be buggy?
Sounds like it could be, but I'm no MIPS expert.
https://github.com/llvm/llvm-project/pull/98855
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