diff options
Diffstat (limited to 'gcc/testsuite/g++.dg/ipa/devirt-c-8.C')
-rw-r--r-- | gcc/testsuite/g++.dg/ipa/devirt-c-8.C | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/ipa/devirt-c-8.C b/gcc/testsuite/g++.dg/ipa/devirt-c-8.C new file mode 100644 index 00000000000..309644d92ac --- /dev/null +++ b/gcc/testsuite/g++.dg/ipa/devirt-c-8.C @@ -0,0 +1,82 @@ +/* Verify that ipa-cp correctly detects the dynamic type of an object + under construction when doing devirtualization. */ +/* { dg-do run } */ +/* { dg-options "-O3 -fno-early-inlining -fno-inline -fdump-ipa-cp -fdump-tree-optimized" } */ + +extern "C" void abort (void); + +class A +{ +public: + int data; + A(); + virtual int foo (int i); +}; + +class B : public A +{ +public: + B(); + virtual int foo (int i); +}; + +class C : public A +{ +public: + virtual int foo (int i); +}; + +int A::foo (int i) +{ + return i + 1; +} + +int B::foo (int i) +{ + return i + 2; +} + +int C::foo (int i) +{ + return i + 3; +} + +static int __attribute__ ((noinline)) +middleman (class A *obj, int i) +{ + return obj->foo (i); +} + +int __attribute__ ((noinline,noclone)) get_input(void) +{ + return 1; +} + +inline __attribute__ ((always_inline)) A::A () +{ + if (middleman (this, get_input ()) != 2) + abort (); +} + +inline __attribute__ ((always_inline)) B::B () +{ +} + +static void bah () +{ + class B b; +} + +int main (int argc, char *argv[]) +{ + int i; + + for (i = 0; i < 10; i++) + bah (); + return 0; +} + +/* { dg-final { scan-ipa-dump "Discovered a virtual call to a known target.*A::foo" "cp" } } */ +/* { dg-final { scan-tree-dump-times "OBJ_TYPE_REF" 0 "optimized"} } */ +/* { dg-final { cleanup-ipa-dump "cp" } } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ |