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re PR tree-optimization/14107 (Return warnings don't work without optimizations enabled)

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PR tree-optimization/14107
        * decl.c (finish_function): Warn about no return in all functions.

From-SVN: r83198
This commit is contained in:
Jason Merrill 2004-06-15 16:38:40 -04:00 committed by Jason Merrill
parent 0566b51e1f
commit eae29fe1dc
6 changed files with 32 additions and 4 deletions
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5
gcc/cp/ChangeLog
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@ -1,3 +1,8 @@
2004-06-12 Jason Merrill <jason@redhat.com>
PR tree-optimization/14107
* decl.c (finish_function): Warn about no return in all functions.
2004-06-15 Paolo Bonzini <bonzini@gnu.org>
* cp-tree.h (struct language_function): Remove cannot_inline.

5
gcc/cp/decl.c
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@ -10803,10 +10803,13 @@ finish_function (int flags)
&& !current_function_returns_value && !current_function_returns_null
/* Don't complain if we abort or throw. */
&& !current_function_returns_abnormally
&& !DECL_NAME (DECL_RESULT (fndecl))
&& !DECL_NAME (DECL_RESULT (fndecl)))
#if 0
/* Enable this for all functions until bug 14107 is fixed properly. */
/* Normally, with -Wreturn-type, flow will complain. Unless we're an
inline function, as we might never be compiled separately. */
&& (DECL_INLINE (fndecl) || processing_template_decl))
#endif
warning ("no return statement in function returning non-void");
/* Store the end of the function, so that we get good line number

8
gcc/testsuite/g++.dg/init/new10.C Normal file
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@ -0,0 +1,8 @@
// PR c++/14452
// We got confused trying to preevaluate the new-initializer.
struct S {};
void foo (bool b)
{
new S(b ? S() : S());
}

11
gcc/testsuite/g++.dg/warn/Wreturn-type-1.C Normal file
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@ -0,0 +1,11 @@
// PR c++/11725
// { dg-options "-Wreturn-type" }
template <class T>
struct A
{
int foo()
{
throw "Stop";
}
};

3
gcc/testsuite/g++.old-deja/g++.brendan/crash52.C
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@ -10,4 +10,5 @@ public:
A &f(A &a) {// { dg-error "" } new decl.*
std::cout << "Blah\n";
}
} // { dg-warning "" } no return

4
gcc/testsuite/g++.old-deja/g++.jason/report.C
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@ -56,7 +56,7 @@ bar2 baz (X::Y y)
bar2 wa [5];
wa[0] = baz(f);
undef2 (1); // { dg-error "" } implicit declaration
}
} // { dg-warning "" } no return
int ninny ()
{
@ -71,4 +71,4 @@ int ninny ()
int darg (char X::*p)
{
undef3 (1); // { dg-error "" } implicit declaration
}
} // { dg-warning "" } no return