[llvm-bugs] [Bug 39158] New: wasm32: Invalid wasm generated when debuginfo related

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=39158

            Bug ID: 39158
           Summary: wasm32: Invalid wasm generated when debuginfo related
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: WebAssembly
          Assignee: unassignedbugs at nondot.org
          Reporter: alex at crichton.co
                CC: dan433584 at gmail.com, llvm-bugs at lists.llvm.org

Created attachment 20952
  --> https://bugs.llvm.org/attachment.cgi?id=20952&action=edit
Failing IR

I was recently trying to upgrade LLVM in rust-lang/rust but hit some bugs when
testing a community crate on the wasm backend. Specifically if the compiled IR
is attached and validated it fails to validate:


    $ llc foo.ll-O2 -filetype=obj -o foo.o
    $ wasm2wat foo.o
    foo.o:0000086: error: type mismatch in i32.eqz, expected [i32] but got []
    foo.o:00000a0: error: type mismatch in function, expected [] but got [i32]

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