[Bug modula2/110126] Variables are reported as unused when only referenced by ASM statements

[gaius at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110126

--- Comment #1 from Gaius Mulley <gaius at gcc dot gnu.org> ---
The procedure test is unreachable, if the module is re-written as:

MODULE fooasm ;

VAR x: INTEGER;

PROCEDURE test;
BEGIN
  ASM("" : : "m"(x));
END test;

BEGIN
   test
END fooasm.


then the assembly output for procedure test in gm2 -S fooasm.mod looks similar
to:

static int x;

void test (void)
{
  asm ("" : : "m"(x));
}