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In-Reply-To: <llvm.org/llvm/llvm-project/pull/121...@github.com>
================
@@ -0,0 +1,55 @@
+// RUN: rm -rf %t
+// RUN: split-file %s %t
+// RUN: cd %t
+
+// RUN: %clang_cc1 -std=c++20 mod.cppm -emit-module-interface -o mod.pcm
-fallow-pcm-with-compiler-errors -verify
+// RUN: %clang_cc1 -std=c++20 main.cpp -fmodule-file=mod=mod.pcm -verify
-fallow-pcm-with-compiler-errors -fsyntax-only -ast-dump-all | FileCheck %s
+
+// RUN: %clang_cc1 -std=c++20 mod.cppm -emit-reduced-module-interface -o
mod.pcm -fallow-pcm-with-compiler-errors -verify
+// RUN: %clang_cc1 -std=c++20 main.cpp -fmodule-file=mod=mod.pcm -verify
-fallow-pcm-with-compiler-errors -fsyntax-only -ast-dump-all | FileCheck %s
+
+//--- mod.cppm
+export module mod;
+
+template <typename T, auto Q>
+concept ReferenceOf = Q;
+
+// expected-error@+2 {{unknown type name 'AngleIsInvalidNow'}}
+// expected-error@+1 {{constexpr variable 'angle' must be initialized by a
constant expression}}
+constexpr struct angle {AngleIsInvalidNow e;} angle;
+
+// expected-error@+1 {{non-type template argument is not a constant
expression}}
+template<ReferenceOf<angle> auto R, typename Rep> requires requires(Rep v)
{cos(v);}
+auto cos(const Rep& q);
+
+// expected-error@+1 {{non-type template argument is not a constant
expression}}
+template<ReferenceOf<angle> auto R, typename Rep> requires requires(Rep v)
{tan(v);}
+auto tan(const Rep& q);
+
+//--- main.cpp
+// expected-no-diagnostics
+import mod;
+
+// CHECK: |-FunctionTemplateDecl {{.*}} <line:11:1, line:12:22> col:6
imported in mod hidden invalid cos
+// CHECK-NEXT: | |-NonTypeTemplateParmDecl {{.*}} <line:11:10, col:34> col:34
imported in mod hidden referenced invalid 'ReferenceOf<angle> auto' depth 0
index 0 R
+// CHECK-NEXT: | |-TemplateTypeParmDecl {{.*}} <col:37, col:46> col:46
imported in mod hidden referenced typename depth 0 index 1 Rep
+// CHECK-NEXT: | |-RequiresExpr {{.*}} <col:60, col:84> 'bool'
+// CHECK-NEXT: | | |-ParmVarDecl {{.*}} <col:69, col:73> col:73 imported in
mod hidden referenced v 'Rep'
+// CHECK-NEXT: | | `-SimpleRequirement {{.*}} dependent
+// CHECK-NEXT: | | `-CallExpr {{.*}} <col:77, col:82> '<dependent type>'
+// CHECK-NEXT: | | |-UnresolvedLookupExpr {{.*}} <col:77> '<overloaded
function type>' lvalue (ADL) = 'cos' empty
+// CHECK-NEXT: | | `-DeclRefExpr {{.*}} <col:81> 'Rep' lvalue ParmVar
{{.*}} 'v' 'Rep' non_odr_use_unevaluated
+// CHECK-NEXT: | `-FunctionDecl {{.*}} <line:12:1, col:22> col:6 imported in
mod hidden cos 'auto (const Rep &)'
+// CHECK-NEXT: | `-ParmVarDecl {{.*}} <col:10, col:21> col:21 imported in
mod hidden q 'const Rep &'
+
+// CHECK: |-FunctionTemplateDecl {{.*}} <line:15:1, line:16:22> col:6
imported in mod hidden invalid tan
+// CHECK-NEXT: | |-NonTypeTemplateParmDecl {{.*}} <line:15:10, col:34> col:34
imported in mod hidden referenced invalid 'ReferenceOf<angle> auto' depth 0
index 0 R
+// CHECK-NEXT: | |-TemplateTypeParmDecl {{.*}} <col:37, col:46> col:46
imported in mod hidden referenced typename depth 0 index 1 Rep
+// CHECK-NEXT: | |-RequiresExpr {{.*}} <col:60, col:84> 'bool'
+// CHECK-NEXT: | | |-ParmVarDecl {{.*}} <col:69, col:73> col:73 imported in
mod hidden referenced v 'Rep'
+// CHECK-NEXT: | | `-SimpleRequirement {{.*}} dependent
+// CHECK-NEXT: | | `-CallExpr {{.*}} <col:77, col:82> '<dependent type>'
+// CHECK-NEXT: | | |-UnresolvedLookupExpr {{.*}} <col:77> '<overloaded
function type>' lvalue (ADL) = 'tan' empty
+// CHECK-NEXT: | | `-DeclRefExpr {{.*}} <col:81> 'Rep' lvalue ParmVar
{{.*}} 'v' 'Rep' non_odr_use_unevaluated
+// CHECK-NEXT: | `-FunctionDecl {{.*}} <line:16:1, col:22> col:6 imported in
mod hidden tan 'auto (const Rep &)'
+// CHECK-NEXT: | `-ParmVarDecl {{.*}} <col:10, col:21> col:21 imported in
mod hidden q 'const Rep &'
----------------
mizvekov wrote:
Please filter out line numbers on the AST dump match, otherwise this makes
these tests hard to update.
https://github.com/llvm/llvm-project/pull/121768
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