[LLVMbugs] [Bug 21294] New: incorrect -Winfinite-recursion warning on potentially-unevaluated operand

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=21294

            Bug ID: 21294
           Summary: incorrect -Winfinite-recursion warning on
                    potentially-unevaluated operand
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Frontend
          Assignee: unassignedclangbugs at nondot.org
          Reporter: richard-llvm at metafoo.co.uk
                CC: llvmbugs at cs.uiuc.edu, rtrieu at google.com
    Classification: Unclassified

This:

  #include <typeinfo>
  int f() {
    typeid(f());
    return 0;
  }

gives:

<stdin>:2:9: warning: all paths through this function will call itself
[-Winfinite-recursion]
int f() {
        ^

... which is not true, because in this case the operand of typeid(...) is
unevaluated.

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