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comparison gcc/testsuite/g++.dg/tree-ssa/final2.C @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
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131:84e7813d76e9 145:1830386684a0
1 // PR c++/65143
2 // { dg-do compile { target c++11 } }
3 // { dg-additional-options -fdump-tree-gimple }
4 // { dg-final { scan-tree-dump-times "vptr" 1 gimple } }
5
6 struct A
7 {
8 int i();
9 };
10
11 struct B : public virtual A
12 {
13 int get()
14 {
15 return A::i() + 1;
16 }
17 };
18
19 struct C final : public B
20 {
21 int get()
22 {
23 return A::i() + 2;
24 }
25 };
26
27 int foo(C& c)
28 {
29 return c.get(); // Need not go via vtable pointer as class C is final
30 }
31
32 int foo(B& b2)
33 {
34 return b2.get(); // This has to go via vtable as most derived class can change the location of A
35 }