https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123125
Bug ID: 123125
Summary: [RISCV] lto1: sorry, unimplemented: Currently the ‘V’
implementation requires the ‘M’ extension
Product: gcc
Version: 15.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: lto
Assignee: unassigned at gcc dot gnu.org
Reporter: vhaudiquet343 at hotmail dot fr
Target Milestone: ---
Running the `lto1` command on a riscv64 (Ubuntu 26.04 development preview)
virtual machine (-cpu rva23s64, which does have the M extension as well as V)
gives a weird warning message:
ubuntu@ubuntu:~$ /usr/libexec/gcc/riscv64-linux-gnu/15/lto1
<built-in>: sorry, unimplemented: Currently the ‘V’ implementation requires the
‘M’ extension
That seems wrong.
This does not seem to break anything, but the extension detection logic might
be wrong?
