[LLVMbugs] [Bug 5310] New: [GCC Compatibility] Support stdcall/ fastcall attribute on function types

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=5310

           Summary: [GCC Compatibility] Support stdcall/fastcall attribute
                    on function types
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Semantic Analyzer
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: dgregor at apple.com
                CC: llvmbugs at cs.uiuc.edu


Currently, our stdcall/fastcall attribute support is limited to function
declarations. We should also support stdcall/fastcall attributes applied to
function types, so that we can form function pointers that use a specific
calling convention. 

At the moment, we warn about

  typedef void (__attribute__((stdcall)) * callback)(int, int); 

with

stdcall.c:1:30: warning: 'stdcall' attribute only applies to function types
typedef void (__attribute__((stdcall)) * callback)(int, int);
                             ^

rather than properly handling the attribute.


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