This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rG5aeaabf35ead: [Concepts] Check constraints for explicit
template instantiations (authored by royjacobson, committed by erichkeane).
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D120255/new/
https://reviews.llvm.org/D120255
Files:
clang/lib/Sema/SemaTemplateInstantiate.cpp
clang/test/AST/constraints-explicit-instantiation.cpp
Index: clang/test/AST/constraints-explicit-instantiation.cpp
===================================================================
--- /dev/null
+++ clang/test/AST/constraints-explicit-instantiation.cpp
@@ -0,0 +1,38 @@
+// RUN: %clang_cc1 -std=c++20 -ast-dump %s | FileCheck %s
+
+namespace PR46029 {
+
+template <int N>
+void canary1();
+template <int N>
+void canary2();
+
+template <int N>
+struct A {
+ void f() requires(N == 1) {
+ static_assert(N == 1);
+ canary1<N>();
+ }
+ void f() requires(N == 2) {
+ static_assert(N == 2);
+ canary2<N>();
+ }
+};
+
+// This checks that `canary1<1>` and `canaray2<2>` are instantiated, thus
+// indirectly validating that the correct candidates of `A::f` were really
+// instantiated each time.
+// The `static_assert`s validate we don't instantiate wrong candidates.
+
+// CHECK:{{.*}}FunctionTemplateDecl {{.*}} canary1
+// CHECK: {{.*}}TemplateArgument integral
+// CHECK-SAME: {{1$}}
+template struct A<1>;
+
+// CHECK: {{.*}}FunctionTemplateDecl {{.*}} canary2
+// CHECK: {{.*}}TemplateArgument integral
+// CHECK-SAME: {{2$}}
+template struct A<2>;
+
+template struct A<3>;
+}
Index: clang/lib/Sema/SemaTemplateInstantiate.cpp
===================================================================
--- clang/lib/Sema/SemaTemplateInstantiate.cpp
+++ clang/lib/Sema/SemaTemplateInstantiate.cpp
@@ -3230,6 +3230,14 @@
if (FunctionDecl *Pattern =
Function->getInstantiatedFromMemberFunction()) {
+ if (Function->getTrailingRequiresClause()) {
+ ConstraintSatisfaction Satisfaction;
+ if (CheckFunctionConstraints(Function, Satisfaction) ||
+ !Satisfaction.IsSatisfied) {
+ continue;
+ }
+ }
+
if (Function->hasAttr<ExcludeFromExplicitInstantiationAttr>())
continue;
Index: clang/test/AST/constraints-explicit-instantiation.cpp
===================================================================
--- /dev/null
+++ clang/test/AST/constraints-explicit-instantiation.cpp
@@ -0,0 +1,38 @@
+// RUN: %clang_cc1 -std=c++20 -ast-dump %s | FileCheck %s
+
+namespace PR46029 {
+
+template <int N>
+void canary1();
+template <int N>
+void canary2();
+
+template <int N>
+struct A {
+ void f() requires(N == 1) {
+ static_assert(N == 1);
+ canary1<N>();
+ }
+ void f() requires(N == 2) {
+ static_assert(N == 2);
+ canary2<N>();
+ }
+};
+
+// This checks that `canary1<1>` and `canaray2<2>` are instantiated, thus
+// indirectly validating that the correct candidates of `A::f` were really
+// instantiated each time.
+// The `static_assert`s validate we don't instantiate wrong candidates.
+
+// CHECK:{{.*}}FunctionTemplateDecl {{.*}} canary1
+// CHECK: {{.*}}TemplateArgument integral
+// CHECK-SAME: {{1$}}
+template struct A<1>;
+
+// CHECK: {{.*}}FunctionTemplateDecl {{.*}} canary2
+// CHECK: {{.*}}TemplateArgument integral
+// CHECK-SAME: {{2$}}
+template struct A<2>;
+
+template struct A<3>;
+}
Index: clang/lib/Sema/SemaTemplateInstantiate.cpp
===================================================================
--- clang/lib/Sema/SemaTemplateInstantiate.cpp
+++ clang/lib/Sema/SemaTemplateInstantiate.cpp
@@ -3230,6 +3230,14 @@
if (FunctionDecl *Pattern =
Function->getInstantiatedFromMemberFunction()) {
+ if (Function->getTrailingRequiresClause()) {
+ ConstraintSatisfaction Satisfaction;
+ if (CheckFunctionConstraints(Function, Satisfaction) ||
+ !Satisfaction.IsSatisfied) {
+ continue;
+ }
+ }
+
if (Function->hasAttr<ExcludeFromExplicitInstantiationAttr>())
continue;
_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
