diff options
Diffstat (limited to 'clang/test/CodeGenCXX/debug-info-template.cpp')
| -rw-r--r-- | clang/test/CodeGenCXX/debug-info-template.cpp | 61 |
1 files changed, 52 insertions, 9 deletions
diff --git a/clang/test/CodeGenCXX/debug-info-template.cpp b/clang/test/CodeGenCXX/debug-info-template.cpp index 9bb75ffa3ba..7b987ef97c1 100644 --- a/clang/test/CodeGenCXX/debug-info-template.cpp +++ b/clang/test/CodeGenCXX/debug-info-template.cpp @@ -1,26 +1,69 @@ -// RUN: %clang_cc1 -emit-llvm -g %s -o - -std=c++11 | FileCheck %s +// RUN: %clang -S -emit-llvm -target x86_64-unknown_unknown -g %s -o - -std=c++11 | FileCheck %s // CHECK: [[INT:![0-9]*]] = {{.*}} ; [ DW_TAG_base_type ] [int] // CHECK: metadata [[TCI:![0-9]*]], i32 0, i32 1, %class.TC* @tci, null} ; [ DW_TAG_variable ] [tci] -// CHECK: [[TC:![0-9]*]] = {{.*}}, metadata [[TCARGS:![0-9]*]]} ; [ DW_TAG_class_type ] [TC<int, 2, &glb, &foo::e, &foo::f, nullptr>] -// CHECK: [[TCARGS]] = metadata !{metadata [[TCARG1:![0-9]*]], metadata [[TCARG2:![0-9]*]]} +// CHECK: [[TC:![0-9]*]] = {{.*}}, metadata [[TCARGS:![0-9]*]]} ; [ DW_TAG_class_type ] [TC<unsigned int, 2, &glb, &foo::e, &foo::f>] +// CHECK: [[TCARGS]] = metadata !{metadata [[TCARG1:![0-9]*]], metadata [[TCARG2:![0-9]*]], metadata [[TCARG3:![0-9]*]], metadata [[TCARG4:![0-9]*]], metadata [[TCARG5:![0-9]*]]} // // We seem to be missing file/line/col info on template value parameters - -// metadata supports it but it's not populated. +// metadata supports it but it's not populated. GCC doesn't emit it either, +// perhaps we should just drop it from the metadata. // -// CHECK: [[TCARG1]] = {{.*}}metadata !"T", metadata [[INT]], {{.*}} ; [ DW_TAG_template_type_parameter ] -// CHECK: [[TCARG2]] = {{.*}}metadata !"", metadata [[UINT:![0-9]*]], i64 2, {{.*}} ; [ DW_TAG_template_value_parameter ] -// CHECK: [[UINT]] = {{.*}} ; [ DW_TAG_base_type ] [unsigned int] +// CHECK: [[TCARG1]] = {{.*}}metadata !"T", metadata [[UINT:![0-9]*]], {{.*}} ; [ DW_TAG_template_type_parameter ] +// CHECK: [[UINT:![0-9]*]] = {{.*}} ; [ DW_TAG_base_type ] [unsigned int] +// CHECK: [[TCARG2]] = {{.*}}metadata !"", metadata [[UINT:![0-9]*]], i32 2, {{.*}} ; [ DW_TAG_template_value_parameter ] +// CHECK: [[TCARG3]] = {{.*}}metadata !"x", metadata [[INTPTR:![0-9]*]], i32* @glb, {{.*}} ; [ DW_TAG_template_value_parameter ] +// CHECK: [[INTPTR]] = {{.*}}, metadata [[INT]]} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from int] +// CHECK: [[TCARG4]] = {{.*}}metadata !"a", metadata [[MEMINTPTR:![0-9]*]], i64 8, {{.*}} ; [ DW_TAG_template_value_parameter ] +// CHECK: [[MEMINTPTR]] = {{.*}}, metadata [[FOO:![0-9]*]]} ; [ DW_TAG_ptr_to_member_type ] {{.*}}[from int] +// +// We could just emit a declaration of 'foo' here, rather than the entire +// definition (same goes for any time we emit a member (function or data) +// pointer type) +// CHECK: [[FOO]] = {{.*}} ; [ DW_TAG_structure_type ] [foo] +// CHECK: metadata !"f", metadata !"_ZN3foo1fEv", i32 {{[0-9]*}}, metadata [[FTYPE:![0-9]*]], +// CHECK: [[FTYPE:![0-9]*]] = {{.*}}, metadata [[FARGS:![0-9]*]], i32 0, i32 0} ; [ DW_TAG_subroutine_type ] +// CHECK: [[FARGS]] = metadata !{null, metadata [[FARG1:![0-9]*]]} +// CHECK: [[FARG1]] = {{.*}} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from foo] +// +// Currently Clang emits the pointer-to-member-function value, but LLVM doesn't +// use it (GCC doesn't emit a value for pointers to member functions either - so +// it's not clear what, if any, format would be acceptable to GDB) +// +// CHECK: [[TCARG5]] = {{.*}}metadata !"b", metadata [[MEMFUNPTR:![0-9]*]], { i64, i64 } { i64 ptrtoint (void (%struct.foo*)* @_ZN3foo1fEv to i64), i64 0 }, {{.*}} ; [ DW_TAG_template_value_parameter ] +// CHECK: [[MEMFUNPTR]] = {{.*}}, metadata [[FTYPE]], metadata [[FOO]]} ; [ DW_TAG_ptr_to_member_type ] + +// CHECK: metadata [[TCNT:![0-9]*]], i32 0, i32 1, %class.TC.0* @tcn, null} ; [ DW_TAG_variable ] [tcn] +// CHECK: [[TCNT:![0-9]*]] = {{.*}}, metadata [[TCNARGS:![0-9]*]]} ; [ DW_TAG_class_type ] [TC<int, -3, nullptr, nullptr, nullptr>] +// CHECK: [[TCNARGS]] = metadata !{metadata [[TCNARG1:![0-9]*]], metadata [[TCNARG2:![0-9]*]], metadata [[TCNARG3:![0-9]*]], metadata [[TCNARG4:![0-9]*]], metadata [[TCNARG5:![0-9]*]]} +// CHECK: [[TCNARG1]] = {{.*}}metadata !"T", metadata [[INT]], {{.*}} ; [ DW_TAG_template_type_parameter ] +// CHECK: [[TCNARG2]] = {{.*}}metadata !"", metadata [[INT]], i32 -3, {{.*}} ; [ DW_TAG_template_value_parameter ] +// CHECK: [[TCNARG3]] = {{.*}}metadata !"x", metadata [[INTPTR]], i8 0, {{.*}} ; [ DW_TAG_template_value_parameter ] + +// The interesting null pointer: -1 for member data pointers (since they are +// just an offset in an object, they can be zero and non-null for the first +// member) + +// CHECK: [[TCNARG4]] = {{.*}}metadata !"a", metadata [[MEMINTPTR]], i64 -1, {{.*}} ; [ DW_TAG_template_value_parameter ] +// +// In some future iteration we could possibly emit the value of a null member +// function pointer as '{ i64, i64 } zeroinitializer' as it may be handled +// naturally from the LLVM CodeGen side once we decide how to handle non-null +// member function pointers. For now, it's simpler just to emit the 'i8 0'. +// +// CHECK: [[TCNARG5]] = {{.*}}metadata !"b", metadata [[MEMFUNPTR:![0-9]*]], i8 0, {{.*}} ; [ DW_TAG_template_value_parameter ] struct foo { + char pad[8]; // make the member pointer to 'e' a bit more interesting (nonzero) int e; void f(); }; -template<typename T, unsigned, int *x, int foo::*a, void (foo::*b)(), int *n> +template<typename T, T, int *x, int foo::*a, void (foo::*b)()> class TC { }; int glb; -TC<int, 2, &glb, &foo::e, &foo::f, nullptr> tci; +TC<unsigned, 2, &glb, &foo::e, &foo::f> tci; +TC<int, -3, nullptr, nullptr, nullptr> tcn; |
