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2009-10-01When the return type of a function is dependent, don't perform anyDouglas Gregor
of the flow-control checks for falling off the end of a function, since the return type may instantiate to void. Similarly, if a return statement has an expression and the return type of the function is void, don't complain if the expression is type-dependent, since that type could instantiate to void. Fixes PR5071. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83222 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22Add warning for falling off the end of a function that should return aMike Stump
value. This is on by default, and controlled by -Wreturn-type (-Wmost -Wall). I believe there should be very few false positives, though the most interesting case would be: int() { bar(); } when bar does: bar() { while (1) ; } Here, we assume functions return, unless they are marked with the noreturn attribute. I can envision a fixit note for functions that never return normally that don't have a noreturn attribute to add a noreturn attribute. If anyone spots other false positives, let me know! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76821 91177308-0d34-0410-b5e6-96231b3b80d8