[llvm-bugs] [Bug 27889] New: "function with no prototype cannot use ... calling convention" for function with prototype (win32)

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=27889

            Bug ID: 27889
           Summary: "function with no prototype cannot use ... calling
                    convention" for function with prototype (win32)
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: Frontend
          Assignee: unassignedclangbugs at nondot.org
          Reporter: denis.briltz at intel.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

$ cat tttt.c
int __stdcall sfoo();
int __fastcall ffoo();

$ clang -c -m32 tttt.c
tttt.c:1:15: warning: function with no prototype cannot use the stdcall calling
convention [-Wmissing-prototype-for-cc]
int __stdcall sfoo();
              ^
tttt.c:2:16: error: function with no prototype cannot use the fastcall calling
convention
int __fastcall ffoo();
               ^
1 warning and 1 error generated.

The diagnostics emitted against prototype itself. 64 bit compiles with no
messages. This is very similar to #20386.


Thanks,
Denis
=====
Software Engineer
Intel Compiler Team

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