[llvm-bugs] [Bug 51555] New: WebAssembly .s format can omit .globaltype for __stack_pointer

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Fri Aug 20 00:49:46 PDT 2021


https://bugs.llvm.org/show_bug.cgi?id=51555

            Bug ID: 51555
           Summary: WebAssembly .s format can omit .globaltype for
                    __stack_pointer
           Product: new-bugs
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: keithw at cs.stanford.edu
                CC: htmldeveloper at gmail.com, llvm-bugs at lists.llvm.org

Created attachment 25178
  --> https://bugs.llvm.org/attachment.cgi?id=25178&action=edit
bug.s

After commit 9647a6f, the WebAssemblyAsmPrinter can omit the .globaltype for
__stack_pointer, leading to a .s file that the assembler rejects.

To reproduce:
```
$ cat > bug.c
void unused_function(void) {}

void function(int x, int y) {}

void dosomething(void)
{
  function(0, 0);
}
$ clang -S -o bug.s bug.c && clang -c -o bug.o bug.s
bug.s:23:2: error: symbol __stack_pointer missing .globaltype
        global.get      __stack_pointer
        ^
```

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