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clang-p2996/clang/test/AST/ast-dump-openmp-begin-declare-variant_template_1.cpp
Richard Smith a6308c0ad9 When performing a substitution into a dependent alias template, mark the 
outer levels as retained rather than omitting their arguments.

This better reflects what's going on (we're performing a substitution
while still inside a template), and in theory is more correct, but I've
not found a testcase where it matters in practice (largely because we
don't allow alias templates to be declared inside a function).

Fixed AST dumping of SubstNonTypeTemplateParm[Pack]Expr to demonstrate
that we're properly substituting through dependent alias templates. (We
can't deduce properly through these yet, but we can at least produce the
right input to template argument deduction.)

No functionality change intended.
2020-06-23 14:43:04 -07:00

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// RUN: %clang_cc1 -triple x86_64-unknown-unknown -fopenmp -verify -ast-dump %s | FileCheck %s
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -fopenmp -verify -ast-dump %s -x c++| FileCheck %s
// expected-no-diagnostics
int also_before() {
return 1;
}
#pragma omp begin declare variant match(implementation={vendor(score(100):llvm)})
int also_after(void) {
return 2;
}
int also_after(int) {
return 3;
}
int also_after(double) {
return 0;
}
#pragma omp end declare variant
#pragma omp begin declare variant match(implementation={vendor(score(0):llvm)})
int also_before() {
return 0;
}
#pragma omp end declare variant
int also_after(void) {
return 4;
}
int also_after(int) {
return 5;
}
int also_after(double) {
return 6;
}
template<typename T>
int test1() {
// Should return 0.
return also_after(T(0));
}
typedef int(*Ty)();
template<Ty fn>
int test2() {
// Should return 0.
return fn();
}
int test() {
// Should return 0.
return test1<double>() + test2<also_before>();
}
// CHECK: |-FunctionDecl [[ADDR_0:0x[a-z0-9]*]] <{{.*}}, line:7:1> line:5:5 used also_before 'int ({{.*}})'
// CHECK-NEXT: | |-CompoundStmt [[ADDR_1:0x[a-z0-9]*]] <col:19, line:7:1>
// CHECK-NEXT: | | `-ReturnStmt [[ADDR_2:0x[a-z0-9]*]] <line:6:3, col:10>
// CHECK-NEXT: | | `-IntegerLiteral [[ADDR_3:0x[a-z0-9]*]] <col:10> 'int' 1
// CHECK-NEXT: | `-OMPDeclareVariantAttr [[ADDR_4:0x[a-z0-9]*]] <<invalid sloc>> Implicit implementation={vendor(score(0): llvm)}
// CHECK-NEXT: | `-DeclRefExpr [[ADDR_5:0x[a-z0-9]*]] <line:21:1> 'int ({{.*}})' Function [[ADDR_6:0x[a-z0-9]*]] 'also_before[implementation={vendor(llvm)}]' 'int ({{.*}})'
// CHECK-NEXT: |-FunctionDecl [[ADDR_7:0x[a-z0-9]*]] <line:10:1, col:20> col:5 implicit also_after 'int ({{.*}})'
// CHECK-NEXT: | `-OMPDeclareVariantAttr [[ADDR_8:0x[a-z0-9]*]] <<invalid sloc>> Implicit implementation={vendor(score(100): llvm)}
// CHECK-NEXT: | `-DeclRefExpr [[ADDR_9:0x[a-z0-9]*]] <col:1> 'int ({{.*}})' Function [[ADDR_10:0x[a-z0-9]*]] 'also_after[implementation={vendor(llvm)}]' 'int ({{.*}})'
// CHECK-NEXT: |-FunctionDecl [[ADDR_10]] <col:1, line:12:1> line:10:1 also_after[implementation={vendor(llvm)}] 'int ({{.*}})'
// CHECK-NEXT: | `-CompoundStmt [[ADDR_11:0x[a-z0-9]*]] <col:22, line:12:1>
// CHECK-NEXT: | `-ReturnStmt [[ADDR_12:0x[a-z0-9]*]] <line:11:3, col:10>
// CHECK-NEXT: | `-IntegerLiteral [[ADDR_13:0x[a-z0-9]*]] <col:10> 'int' 2
// CHECK-NEXT: |-FunctionDecl [[ADDR_14:0x[a-z0-9]*]] <line:13:1, col:19> col:5 implicit also_after 'int (int)'
// CHECK-NEXT: | |-ParmVarDecl [[ADDR_15:0x[a-z0-9]*]] <col:16> col:19 'int'
// CHECK-NEXT: | `-OMPDeclareVariantAttr [[ADDR_16:0x[a-z0-9]*]] <<invalid sloc>> Implicit implementation={vendor(score(100): llvm)}
// CHECK-NEXT: | `-DeclRefExpr [[ADDR_17:0x[a-z0-9]*]] <col:1> 'int (int)' Function [[ADDR_18:0x[a-z0-9]*]] 'also_after[implementation={vendor(llvm)}]' 'int (int)'
// CHECK-NEXT: |-FunctionDecl [[ADDR_18]] <col:1, line:15:1> line:13:1 also_after[implementation={vendor(llvm)}] 'int (int)'
// CHECK-NEXT: | |-ParmVarDecl [[ADDR_15]] <col:16> col:19 'int'
// CHECK-NEXT: | `-CompoundStmt [[ADDR_19:0x[a-z0-9]*]] <col:21, line:15:1>
// CHECK-NEXT: | `-ReturnStmt [[ADDR_20:0x[a-z0-9]*]] <line:14:3, col:10>
// CHECK-NEXT: | `-IntegerLiteral [[ADDR_21:0x[a-z0-9]*]] <col:10> 'int' 3
// CHECK-NEXT: |-FunctionDecl [[ADDR_22:0x[a-z0-9]*]] <line:16:1, col:22> col:5 implicit used also_after 'int (double)'
// CHECK-NEXT: | |-ParmVarDecl [[ADDR_23:0x[a-z0-9]*]] <col:16> col:22 'double'
// CHECK-NEXT: | `-OMPDeclareVariantAttr [[ADDR_24:0x[a-z0-9]*]] <<invalid sloc>> Implicit implementation={vendor(score(100): llvm)}
// CHECK-NEXT: | `-DeclRefExpr [[ADDR_25:0x[a-z0-9]*]] <col:1> 'int (double)' Function [[ADDR_26:0x[a-z0-9]*]] 'also_after[implementation={vendor(llvm)}]' 'int (double)'
// CHECK-NEXT: |-FunctionDecl [[ADDR_26]] <col:1, line:18:1> line:16:1 also_after[implementation={vendor(llvm)}] 'int (double)'
// CHECK-NEXT: | |-ParmVarDecl [[ADDR_23]] <col:16> col:22 'double'
// CHECK-NEXT: | `-CompoundStmt [[ADDR_27:0x[a-z0-9]*]] <col:24, line:18:1>
// CHECK-NEXT: | `-ReturnStmt [[ADDR_28:0x[a-z0-9]*]] <line:17:3, col:10>
// CHECK-NEXT: | `-IntegerLiteral [[ADDR_29:0x[a-z0-9]*]] <col:10> 'int' 0
// CHECK-NEXT: |-FunctionDecl [[ADDR_6]] <line:21:1, line:23:1> line:21:1 also_before[implementation={vendor(llvm)}] 'int ({{.*}})'
// CHECK-NEXT: | `-CompoundStmt [[ADDR_30:0x[a-z0-9]*]] <col:19, line:23:1>
// CHECK-NEXT: | `-ReturnStmt [[ADDR_31:0x[a-z0-9]*]] <line:22:3, col:10>
// CHECK-NEXT: | `-IntegerLiteral [[ADDR_32:0x[a-z0-9]*]] <col:10> 'int' 0
// CHECK-NEXT: |-FunctionDecl [[ADDR_33:0x[a-z0-9]*]] prev [[ADDR_7]] <line:26:1, line:28:1> line:26:5 also_after 'int ({{.*}})'
// CHECK-NEXT: | |-CompoundStmt [[ADDR_34:0x[a-z0-9]*]] <col:22, line:28:1>
// CHECK-NEXT: | | `-ReturnStmt [[ADDR_35:0x[a-z0-9]*]] <line:27:3, col:10>
// CHECK-NEXT: | | `-IntegerLiteral [[ADDR_36:0x[a-z0-9]*]] <col:10> 'int' 4
// CHECK-NEXT: | `-OMPDeclareVariantAttr [[ADDR_37:0x[a-z0-9]*]] <<invalid sloc>> Inherited Implicit implementation={vendor(score(100): llvm)}
// CHECK-NEXT: | `-DeclRefExpr [[ADDR_9]] <line:10:1> 'int ({{.*}})' Function [[ADDR_10]] 'also_after[implementation={vendor(llvm)}]' 'int ({{.*}})'
// CHECK-NEXT: |-FunctionDecl [[ADDR_38:0x[a-z0-9]*]] prev [[ADDR_14]] <line:29:1, line:31:1> line:29:5 also_after 'int (int)'
// CHECK-NEXT: | |-ParmVarDecl [[ADDR_39:0x[a-z0-9]*]] <col:16> col:19 'int'
// CHECK-NEXT: | |-CompoundStmt [[ADDR_40:0x[a-z0-9]*]] <col:21, line:31:1>
// CHECK-NEXT: | | `-ReturnStmt [[ADDR_41:0x[a-z0-9]*]] <line:30:3, col:10>
// CHECK-NEXT: | | `-IntegerLiteral [[ADDR_42:0x[a-z0-9]*]] <col:10> 'int' 5
// CHECK-NEXT: | `-OMPDeclareVariantAttr [[ADDR_43:0x[a-z0-9]*]] <<invalid sloc>> Inherited Implicit implementation={vendor(score(100): llvm)}
// CHECK-NEXT: | `-DeclRefExpr [[ADDR_17]] <line:13:1> 'int (int)' Function [[ADDR_18]] 'also_after[implementation={vendor(llvm)}]' 'int (int)'
// CHECK-NEXT: |-FunctionDecl [[ADDR_44:0x[a-z0-9]*]] prev [[ADDR_22]] <line:32:1, line:34:1> line:32:5 used also_after 'int (double)'
// CHECK-NEXT: | |-ParmVarDecl [[ADDR_45:0x[a-z0-9]*]] <col:16> col:22 'double'
// CHECK-NEXT: | |-CompoundStmt [[ADDR_46:0x[a-z0-9]*]] <col:24, line:34:1>
// CHECK-NEXT: | | `-ReturnStmt [[ADDR_47:0x[a-z0-9]*]] <line:33:3, col:10>
// CHECK-NEXT: | | `-IntegerLiteral [[ADDR_48:0x[a-z0-9]*]] <col:10> 'int' 6
// CHECK-NEXT: | `-OMPDeclareVariantAttr [[ADDR_49:0x[a-z0-9]*]] <<invalid sloc>> Inherited Implicit implementation={vendor(score(100): llvm)}
// CHECK-NEXT: | `-DeclRefExpr [[ADDR_25]] <line:16:1> 'int (double)' Function [[ADDR_26]] 'also_after[implementation={vendor(llvm)}]' 'int (double)'
// CHECK-NEXT: |-FunctionTemplateDecl [[ADDR_50:0x[a-z0-9]*]] <line:36:1, line:40:1> line:37:5 test1
// CHECK-NEXT: | |-TemplateTypeParmDecl [[ADDR_51:0x[a-z0-9]*]] <line:36:10, col:19> col:19 referenced typename depth 0 index 0 T
// CHECK-NEXT: | |-FunctionDecl [[ADDR_52:0x[a-z0-9]*]] <line:37:1, line:40:1> line:37:5 test1 'int ({{.*}})'
// CHECK-NEXT: | | `-CompoundStmt [[ADDR_53:0x[a-z0-9]*]] <col:13, line:40:1>
// CHECK-NEXT: | | `-ReturnStmt [[ADDR_54:0x[a-z0-9]*]] <line:39:3, col:25>
// CHECK-NEXT: | | `-CallExpr [[ADDR_55:0x[a-z0-9]*]] <col:10, col:25> '<dependent type>'
// CHECK-NEXT: | | |-UnresolvedLookupExpr [[ADDR_56:0x[a-z0-9]*]] <col:10> '<overloaded function type>' {{.*}}(ADL) = 'also_after' [[ADDR_44]] [[ADDR_38]] [[ADDR_33]]
// CHECK-NEXT: | | `-CXXUnresolvedConstructExpr [[ADDR_57:0x[a-z0-9]*]] <col:21, col:24> 'T' 'T'
// CHECK-NEXT: | | `-IntegerLiteral [[ADDR_58:0x[a-z0-9]*]] <col:23> 'int' 0
// CHECK-NEXT: | `-FunctionDecl [[ADDR_59:0x[a-z0-9]*]] <line:37:1, line:40:1> line:37:5 used test1 'int ({{.*}})'
// CHECK-NEXT: | |-TemplateArgument type 'double'
// CHECK: | `-CompoundStmt [[ADDR_60:0x[a-z0-9]*]] <col:13, line:40:1>
// CHECK-NEXT: | `-ReturnStmt [[ADDR_61:0x[a-z0-9]*]] <line:39:3, col:25>
// CHECK-NEXT: | `-PseudoObjectExpr [[ADDR_62:0x[a-z0-9]*]] <col:10, col:25> 'int'
// CHECK-NEXT: | |-CallExpr [[ADDR_63:0x[a-z0-9]*]] <col:10, col:25> 'int'
// CHECK-NEXT: | | |-ImplicitCastExpr [[ADDR_64:0x[a-z0-9]*]] <col:10> 'int (*)(double)' <FunctionToPointerDecay>
// CHECK-NEXT: | | | `-DeclRefExpr [[ADDR_65:0x[a-z0-9]*]] <col:10> 'int (double)' {{.*}}Function [[ADDR_44]] 'also_after' 'int (double)'
// CHECK-NEXT: | | `-CXXFunctionalCastExpr [[ADDR_66:0x[a-z0-9]*]] <col:21, col:24> 'double':'double' functional cast to double <NoOp>
// CHECK-NEXT: | | `-ImplicitCastExpr [[ADDR_67:0x[a-z0-9]*]] <col:23> 'double':'double' <IntegralToFloating> part_of_explicit_cast
// CHECK-NEXT: | | `-IntegerLiteral [[ADDR_58]] <col:23> 'int' 0
// CHECK-NEXT: | `-CallExpr [[ADDR_68:0x[a-z0-9]*]] <line:16:1, line:39:25> 'int'
// CHECK-NEXT: | |-ImplicitCastExpr [[ADDR_69:0x[a-z0-9]*]] <line:16:1> 'int (*)(double)' <FunctionToPointerDecay>
// CHECK-NEXT: | | `-DeclRefExpr [[ADDR_25]] <col:1> 'int (double)' Function [[ADDR_26]] 'also_after[implementation={vendor(llvm)}]' 'int (double)'
// CHECK-NEXT: | `-CXXFunctionalCastExpr [[ADDR_66]] <line:39:21, col:24> 'double':'double' functional cast to double <NoOp>
// CHECK-NEXT: | `-ImplicitCastExpr [[ADDR_67]] <col:23> 'double':'double' <IntegralToFloating> part_of_explicit_cast
// CHECK-NEXT: | `-IntegerLiteral [[ADDR_58]] <col:23> 'int' 0
// CHECK-NEXT: |-TypedefDecl [[ADDR_70:0x[a-z0-9]*]] <line:42:1, col:18> col:14 referenced Ty 'int (*)({{.*}})'
// CHECK-NEXT: | `-PointerType [[ADDR_71:0x[a-z0-9]*]] 'int (*)({{.*}})'
// CHECK-NEXT: | `-ParenType [[ADDR_72:0x[a-z0-9]*]] 'int ({{.*}})' sugar
// CHECK-NEXT: | `-FunctionProtoType [[ADDR_73:0x[a-z0-9]*]] 'int ({{.*}})' cdecl
// CHECK-NEXT: | `-BuiltinType [[ADDR_74:0x[a-z0-9]*]] 'int'
// CHECK-NEXT: |-FunctionTemplateDecl [[ADDR_75:0x[a-z0-9]*]] <line:44:1, line:48:1> line:45:5 test2
// CHECK-NEXT: | |-NonTypeTemplateParmDecl [[ADDR_76:0x[a-z0-9]*]] <line:44:10, col:13> col:13 referenced 'Ty':'int (*)({{.*}})' depth 0 index 0 fn
// CHECK-NEXT: | |-FunctionDecl [[ADDR_77:0x[a-z0-9]*]] <line:45:1, line:48:1> line:45:5 test2 'int ({{.*}})'
// CHECK-NEXT: | | `-CompoundStmt [[ADDR_78:0x[a-z0-9]*]] <col:13, line:48:1>
// CHECK-NEXT: | | `-ReturnStmt [[ADDR_79:0x[a-z0-9]*]] <line:47:3, col:13>
// CHECK-NEXT: | | `-CallExpr [[ADDR_80:0x[a-z0-9]*]] <col:10, col:13> 'int'
// CHECK-NEXT: | | `-DeclRefExpr [[ADDR_81:0x[a-z0-9]*]] <col:10> 'Ty':'int (*)({{.*}})' NonTypeTemplateParm [[ADDR_76]] 'fn' 'Ty':'int (*)({{.*}})'
// CHECK-NEXT: | `-FunctionDecl [[ADDR_82:0x[a-z0-9]*]] <line:45:1, line:48:1> line:45:5 used test2 'int ({{.*}})'
// CHECK-NEXT: | |-TemplateArgument decl
// CHECK-NEXT: | | `-Function [[ADDR_0]] 'also_before' 'int ({{.*}})'
// CHECK-NEXT: | `-CompoundStmt [[ADDR_83:0x[a-z0-9]*]] <col:13, line:48:1>
// CHECK-NEXT: | `-ReturnStmt [[ADDR_84:0x[a-z0-9]*]] <line:47:3, col:13>
// CHECK-NEXT: | `-PseudoObjectExpr [[ADDR_85:0x[a-z0-9]*]] <col:10, col:13> 'int'
// CHECK-NEXT: | |-CallExpr [[ADDR_86:0x[a-z0-9]*]] <col:10, col:13> 'int'
// CHECK-NEXT: | | `-SubstNonTypeTemplateParmExpr [[ADDR_87:0x[a-z0-9]*]] <col:10> 'int (*)({{.*}})'
// CHECK-NEXT: | | |-NonTypeTemplateParmDecl {{.*}} referenced 'Ty':'int (*)()' depth 0 index 0 fn
// CHECK-NEXT: | | `-UnaryOperator [[ADDR_88:0x[a-z0-9]*]] <line:47:10> 'int (*)({{.*}})' prefix '&' cannot overflow
// CHECK-NEXT: | | `-DeclRefExpr [[ADDR_89:0x[a-z0-9]*]] <col:10> 'int ({{.*}})' {{.*}}Function [[ADDR_0]] 'also_before' 'int ({{.*}})'
// CHECK-NEXT: | `-CallExpr [[ADDR_90:0x[a-z0-9]*]] <line:21:1, line:47:13> 'int'
// CHECK-NEXT: | `-ImplicitCastExpr [[ADDR_91:0x[a-z0-9]*]] <line:21:1> 'int (*)({{.*}})' <FunctionToPointerDecay>
// CHECK-NEXT: | `-DeclRefExpr [[ADDR_5]] <col:1> 'int ({{.*}})' Function [[ADDR_6]] 'also_before[implementation={vendor(llvm)}]' 'int ({{.*}})'
// CHECK-NEXT: `-FunctionDecl [[ADDR_92:0x[a-z0-9]*]] <line:50:1, line:53:1> line:50:5 test 'int ({{.*}})'
// CHECK-NEXT: `-CompoundStmt [[ADDR_93:0x[a-z0-9]*]] <col:12, line:53:1>
// CHECK-NEXT: `-ReturnStmt [[ADDR_94:0x[a-z0-9]*]] <line:52:3, col:47>
// CHECK-NEXT: `-BinaryOperator [[ADDR_95:0x[a-z0-9]*]] <col:10, col:47> 'int' '+'
// CHECK-NEXT: |-CallExpr [[ADDR_96:0x[a-z0-9]*]] <col:10, col:24> 'int'
// CHECK-NEXT: | `-ImplicitCastExpr [[ADDR_97:0x[a-z0-9]*]] <col:10, col:22> 'int (*)({{.*}})' <FunctionToPointerDecay>
// CHECK-NEXT: | `-DeclRefExpr [[ADDR_98:0x[a-z0-9]*]] <col:10, col:22> 'int ({{.*}})' {{.*}}Function [[ADDR_59]] 'test1' 'int ({{.*}})' (FunctionTemplate [[ADDR_50]] 'test1')
// CHECK-NEXT: `-CallExpr [[ADDR_99:0x[a-z0-9]*]] <col:28, col:47> 'int'
// CHECK-NEXT: `-ImplicitCastExpr [[ADDR_100:0x[a-z0-9]*]] <col:28, col:45> 'int (*)({{.*}})' <FunctionToPointerDecay>
// CHECK-NEXT: `-DeclRefExpr [[ADDR_101:0x[a-z0-9]*]] <col:28, col:45> 'int ({{.*}})' {{.*}}Function [[ADDR_82]] 'test2' 'int ({{.*}})' (FunctionTemplate [[ADDR_75]] 'test2')
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