[LLVMbugs] [Bug 2862] New: [sema] vector types differing only in signedness should be compatible

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=2862

           Summary: [sema] vector types differing only in signedness should
                    be compatible
           Product: clang
           Version: unspecified
          Platform: PC
        OS/Version: Windows XP
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Semantic Analyzer
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: daniel at zuster.org
                CC: llvmbugs at cs.uiuc.edu


clang rejects the following code which gcc accepts
--
extern void f1(char a0 __attribute__((vector_size(8))));

void f0(signed char a0 __attribute__((vector_size(8)))) {
  f1(a0);
}
--
ddunbar at ddunbar2:clang$ clang test/CodeGen/f.c
test/CodeGen/f.c:6:6: error: incompatible type passing 'signed char 
__attribute__((__vector_size__(32)))', expected 'char 
__attribute__((__vector_size__(32)))'
  f1(a0);
     ^~
1 diagnostic generated.
--


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