PR22877: When constructing an array via a constructor with a default argument
in list-initialization, run cleanups for the default argument after each
iteration of the initialization loop.
We previously only ran the destructor for any temporary once, at the end of the
complete loop, rather than once per iteration!
Re-commit of r302750, reverted in r302776.
llvm-svn: 302817
diff --git a/clang/test/CodeGenCXX/array-default-argument.cpp b/clang/test/CodeGenCXX/array-default-argument.cpp
new file mode 100644
index 0000000..8376b4f
--- /dev/null
+++ b/clang/test/CodeGenCXX/array-default-argument.cpp
@@ -0,0 +1,36 @@
+// RUN: %clang_cc1 -emit-llvm -o - %s -triple %itanium_abi_triple | FileCheck %s
+// RUN: %clang_cc1 -emit-llvm -o - %s -triple %itanium_abi_triple -fexceptions -fcxx-exceptions | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-EH
+
+struct A {
+ A();
+ ~A();
+};
+
+struct B {
+ B(A = A());
+ ~B();
+};
+
+void f();
+// CHECK-LABEL: define void @_Z1gv()
+void g() {
+ // CHECK: br label %[[LOOP:.*]]
+
+ // [[LOOP]]:
+ // CHECK: {{call|invoke}} {{.*}} @_ZN1AC1Ev([[TEMPORARY:.*]])
+ // CHECK-EH: unwind label %[[PARTIAL_ARRAY_LPAD:.*]]
+ // CHECK: {{call|invoke}} {{.*}} @_ZN1BC1E1A({{.*}}, [[TEMPORARY]])
+ // CHECK-EH: unwind label %[[A_AND_PARTIAL_ARRAY_LPAD:.*]]
+ // CHECK: {{call|invoke}} {{.*}} @_ZN1AD1Ev([[TEMPORARY]])
+ // CHECK-EH: unwind label %[[PARTIAL_ARRAY_LPAD]]
+ // CHECK: getelementptr {{.*}}, i{{[0-9]*}} 1
+ // CHECK: icmp eq
+ // CHECK: br i1 {{.*}} label %[[LOOP]]
+ B b[5];
+
+ // CHECK: {{call|invoke}} void @_Z1fv()
+ f();
+
+ // CHECK-NOT: @_ZN1AD1Ev(
+ // CHECK: {{call|invoke}} {{.*}} @_ZN1BD1Ev(
+}