Implement non-internal linkage for lambda closure types that need a
stable mangling, since these lambdas can end up in multiple
translation units. Sema is responsible for deciding when this is the
case, because it's already responsible for choosing the mangling
number.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151029 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGenCXX/mangle-lambdas.cpp b/test/CodeGenCXX/mangle-lambdas.cpp
index a4fb7cd..e8bd6ec 100644
--- a/test/CodeGenCXX/mangle-lambdas.cpp
+++ b/test/CodeGenCXX/mangle-lambdas.cpp
@@ -14,7 +14,7 @@
// CHECK: call i32 @_ZZ11inline_funciENKUliE_clEi
int l = [=] (int x) -> int { return x + i; }(n);
- int inner(int i = []{ return 1; }());
+ int inner(int i = []{ return 17; }());
// CHECK: call i32 @_ZZ11inline_funciENKUlvE2_clEv
// CHECK-NEXT: call i32 @_Z5inneri
inner();
@@ -49,14 +49,26 @@
// the lambdas in the default arguments of g() won't be seen by
// multiple translation units. We check them mainly to ensure that they don't
// get the special mangling for lambdas in in-class default arguments.
- // CHECK: call i32 @_ZNK1SUlvE_clEv
- // CHECK-NEXT: call i32 @_ZNK1SUlvE0_clEv
+ // CHECK: call i32 @"_ZNK1S3$_0clEv"
+ // CHECK-NEXT: call i32 @"_ZNK1S3$_1clEv"
// CHECK-NEXT: call void @_ZN1S1gEi
s.g();
// CHECK-NEXT: ret void
}
+// Check the linkage of the lambda call operators used in test_S.
+// CHECK: define linkonce_odr i32 @_ZZN1S1fEiiEd0_NKUlvE_clEv
+// CHECK: ret i32 1
+// CHECK: define linkonce_odr i32 @_ZZN1S1fEiiEd0_NKUlvE0_clEv
+// CHECK: ret i32 2
+// CHECK: define linkonce_odr i32 @_ZZN1S1fEiiEd_NKUlvE_clEv
+// CHECK: ret i32 3
+// CHECK: define internal i32 @"_ZNK1S3$_0clEv"
+// CHECK: ret i32 1
+// CHECK: define internal i32 @"_ZNK1S3$_1clEv"
+// CHECK: ret i32 2
+
template<typename T>
struct ST {
void f(T = []{return T() + 1;}()
@@ -76,6 +88,14 @@
// CHECK-NEXT: ret void
}
+// Check the linkage of the lambda call operators used in test_ST.
+// CHECK: define linkonce_odr double @_ZZN2ST1fET_S0_Ed0_NKUlvE_clEv
+// CHECK: ret double 1
+// CHECK: define linkonce_odr double @_ZZN2ST1fET_S0_Ed0_NKUlvE0_clEv
+// CHECK: ret double 2
+// CHECK: define linkonce_odr double @_ZZN2ST1fET_S0_Ed_NKUlvE_clEv
+// CHECK: ret double 3
+
template<typename T>
struct StaticMembers {
static T x;
@@ -98,16 +118,38 @@
// CHECK: call i32 @_ZNK13StaticMembersIfE1xMUlvE_clEv
// CHECK-NEXT: call i32 @_ZNK13StaticMembersIfE1xMUlvE0_clEv
// CHECK-NEXT: add nsw
+// CHECK: define linkonce_odr i32 @_ZNK13StaticMembersIfE1xMUlvE_clEv
+// CHECK: ret i32 1
+// CHECK: define linkonce_odr i32 @_ZNK13StaticMembersIfE1xMUlvE0_clEv
+// CHECK: ret i32 2
template float StaticMembers<float>::x;
// CHECK: define internal void @__cxx_global_var_init1()
// CHECK: call i32 @_ZNK13StaticMembersIfE1yMUlvE_clEv
+// CHECK: define linkonce_odr i32 @_ZNK13StaticMembersIfE1yMUlvE_clEv
+// CHECK: ret i32 3
template float StaticMembers<float>::y;
// CHECK: define internal void @__cxx_global_var_init2()
// CHECK: call i32 @_Z13accept_lambdaIN13StaticMembersIfE1zMUlvE_EEiT_
+// CHECK: declare i32 @_Z13accept_lambdaIN13StaticMembersIfE1zMUlvE_EEiT_()
template float StaticMembers<float>::z;
+// CHECK: define internal void @__cxx_global_var_init3
+// CHECK: call i32 @"_ZNK13StaticMembersIdE3$_2clEv"
+// CHECK: define internal i32 @"_ZNK13StaticMembersIdE3$_2clEv"
+// CHECK: ret i32 42
+template<> double StaticMembers<double>::z = []{return 42; }();
+
+template<typename T>
+void func_template(T = []{ return T(); }());
+
+// CHECK: define void @_Z17use_func_templatev()
+void use_func_template() {
+ // CHECK: call i32 @"_ZZ13func_templateIiEvT_ENKS_IiE3$_3clEv"
+ func_template<int>();
+}
+
struct Members {
int x = [] { return 1; }() + [] { return 2; }();
int y = [] { return 3; }();
@@ -122,3 +164,23 @@
Members members;
// CHECK: ret void
}
+
+// Check the linkage of the lambdas used in test_Members.
+// CHECK: define linkonce_odr i32 @_ZNK7Members1xMUlvE_clEv
+// CHECK: ret i32 1
+// CHECK: define linkonce_odr i32 @_ZNK7Members1xMUlvE0_clEv
+// CHECK: ret i32 2
+// CHECK: define linkonce_odr i32 @_ZNK7Members1yMUlvE_clEv
+// CHECK: ret i32 3
+
+// Check linkage of the various lambdas.
+// CHECK: define linkonce_odr i32 @_ZZ11inline_funciENKUlvE_clEv
+// CHECK: ret i32 1
+// CHECK: define linkonce_odr i32 @_ZZ11inline_funciENKUlvE0_clEv
+// CHECK: ret i32
+// CHECK: define linkonce_odr double @_ZZ11inline_funciENKUlvE1_clEv
+// CHECK: ret double
+// CHECK: define linkonce_odr i32 @_ZZ11inline_funciENKUliE_clEi
+// CHECK: ret i32
+// CHECK: define linkonce_odr i32 @_ZZ11inline_funciENKUlvE2_clEv
+// CHECK: ret i32 17