[clang] de9b3c5 - [clang][Interp] Handle delegating constructors (#67823)
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Mon Oct 16 05:11:31 PDT 2023
Author: Timm Baeder
Date: 2023-10-16T14:11:25+02:00
New Revision: de9b3c5eba41fd024aef6dfa4dab0c8feae29b18
URL: https://github.com/llvm/llvm-project/commit/de9b3c5eba41fd024aef6dfa4dab0c8feae29b18
DIFF: https://github.com/llvm/llvm-project/commit/de9b3c5eba41fd024aef6dfa4dab0c8feae29b18.diff
LOG: [clang][Interp] Handle delegating constructors (#67823)
Added:
Modified:
clang/lib/AST/Interp/ByteCodeStmtGen.cpp
clang/test/AST/Interp/records.cpp
Removed:
################################################################################
diff --git a/clang/lib/AST/Interp/ByteCodeStmtGen.cpp b/clang/lib/AST/Interp/ByteCodeStmtGen.cpp
index 6193a8d55a14685..509abe3ae867f93 100644
--- a/clang/lib/AST/Interp/ByteCodeStmtGen.cpp
+++ b/clang/lib/AST/Interp/ByteCodeStmtGen.cpp
@@ -198,6 +198,14 @@ bool ByteCodeStmtGen<Emitter>::visitFunc(const FunctionDecl *F) {
return false;
if (!this->emitInitPtrPop(InitExpr))
return false;
+ } else {
+ assert(Init->isDelegatingInitializer());
+ if (!this->emitThis(InitExpr))
+ return false;
+ if (!this->visitInitializer(Init->getInit()))
+ return false;
+ if (!this->emitPopPtr(InitExpr))
+ return false;
}
}
}
diff --git a/clang/test/AST/Interp/records.cpp b/clang/test/AST/Interp/records.cpp
index bcc84087fc54020..3c866825d1f077c 100644
--- a/clang/test/AST/Interp/records.cpp
+++ b/clang/test/AST/Interp/records.cpp
@@ -1066,3 +1066,26 @@ namespace ParenInit {
constexpr B b(A(1),2);
}
#endif
+
+namespace DelegatingConstructors {
+ struct S {
+ int a;
+ constexpr S() : S(10) {}
+ constexpr S(int a) : a(a) {}
+ };
+ constexpr S s = {};
+ static_assert(s.a == 10, "");
+
+ struct B {
+ int a;
+ int b;
+
+ constexpr B(int a) : a(a), b(a + 2) {}
+ };
+ struct A : B {
+ constexpr A() : B(10) {};
+ };
+ constexpr A d4 = {};
+ static_assert(d4.a == 10, "");
+ static_assert(d4.b == 12, "");
+}
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