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powerpc-unknown-linux-gnuspe illegal instruction #96394

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@skydig

@alexcrichton
I use following command to build std for powerpc gnuspe,

cargo build -Z build-std --target=powerpc-unknown-linux-gnuspe

and run under target, crash is as following,

Program received signal SIGILL, Illegal instruction.
0x204f2610 in core::sync::atomic::atomic_compare_exchange::hdd78233f59efc1d2 ()
at /usr/share/rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/sync/atomic.rs:2643
2643 /usr/share/rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/sync/atomic.rs: No such file or directory.
in /usr/share/rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/sync/atomic.rs
(gdb) quit

please help

thanks

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    C-bugCategory: This is a bug.O-PowerPCTarget: PowerPC processors

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