Undefined reference to `.L'

[lexxvir]

Hi,

Rust compiler with xtensa back-end produces ELF file with undefined reference `.L'.

It disappears if I add -C save-temps flag to rustc invocation. That flag forces rustc to don't remove intermediate files (LLVM bytecode, assembler and object files) during compilation.

Could you please look on it?
Is this because llvm-xtensa currently don't support object file generation or it is separate issue?

Thanks in advance

[lexxvir]

I've investigated it further: undefined reference .L disappears when I force rustc to emit LLVM bytecode (by --emit llvm-bc).

I've attached archive with sources and some intermediate LLVM files (IR, asm, object):
undefined_reference.zip

[pacmancoder]

Bump. Same issue here

[jeandudey]

Same issue here

[andreisfr]

Hi,

The problem doesn't appear during testing the Xtensa backend ported on release 9.0 of the llvm-project, this version will be uploaded soon.

[jeandudey]

Thanks!

[lexxvir]

I also can acknowledge that this issue doesn't appear on the 9.0 branch.