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188 lines
5.2 KiB
188 lines
5.2 KiB
4 months ago
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/* Compile with:
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clang -g -c odr-uniquing.cpp -o odr-uniquing/1.o
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cp odr-uniquing/1.o odr-uniquing/2.o
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The aim of these test is to check that all the 'type types' that
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should be uniqued through the ODR really are.
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The resulting object file is linked against itself using a fake
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debug map. The end result is:
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- with ODR uniquing: all types (expect for the union for now) in
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the second CU should point back to the types of the first CU.
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- without ODR uniquing: all types are re-emited in the second CU
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*/
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// RUN: dsymutil -f -oso-prepend-path=%p/../Inputs/odr-uniquing -y %p/dummy-debug-map.map -o - | llvm-dwarfdump -v -debug-info - | FileCheck -check-prefixes=ODR,CHECK %s
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// RUN: dsymutil -f -oso-prepend-path=%p/../Inputs/odr-uniquing -y %p/dummy-debug-map.map -no-odr -o - | llvm-dwarfdump -v -debug-info - | FileCheck -check-prefixes=NOODR,CHECK %s
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// The first compile unit contains all the types:
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// CHECK: TAG_compile_unit
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// CHECK-NOT: DW_TAG
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// CHECK: AT_name{{.*}}"odr-uniquing.cpp"
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struct S {
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struct Nested {};
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};
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// CHECK: 0x[[S:[0-9a-f]*]]:{{.*}}DW_TAG_structure_type
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// CHECK-NEXT: DW_AT_name{{.*}}"S"
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// CHECK-NOT: NULL
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// CHECK: 0x[[NESTED:[0-9a-f]*]]:{{.*}}DW_TAG_structure_type
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// CHECK-NOT: DW_TAG
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// CHECK: DW_AT_name{{.*}}"Nested"
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// CHECK: NULL
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namespace N {
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class C {};
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}
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// CHECK: DW_TAG_namespace
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// CHECK-NEXT: DW_AT_name{{.*}}"N"
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// CHECK-NOT: NULL
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// CHECK: 0x[[NC:[0-9a-f]*]]:{{.*}}DW_TAG_class_type
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// CHECK-NEXT: DW_AT_name{{.*}}"C"
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// CHECK: NULL
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union U {
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class C {} C;
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struct S {} S;
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};
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// CHECK: 0x[[U:[0-9a-f]*]]:{{.*}}DW_TAG_union_type
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// CHECK-NEXT: DW_AT_name{{.*}}"U"
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// CHECK-NOT: NULL
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// CHECK: 0x[[UC:[0-9a-f]*]]:{{.*}}DW_TAG_class_type
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// CHECK-NOT: NULL
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// CHECK: 0x[[US:[0-9a-f]*]]:{{.*}}DW_TAG_structure_type
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// CHECK: NULL
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typedef S AliasForS;
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// CHECK: 0x[[ALIASFORS:[0-9a-f]*]]:{{.*}}DW_TAG_typedef
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// CHECK-NEXT: DW_AT_type{{.*}}[[S]]
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// CHECK-NEXT: DW_AT_name{{.*}}"AliasForS"
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namespace {
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class AnonC {};
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}
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// CHECK: DW_TAG_namespace
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// CHECK-NOT: {{DW_AT_name|NULL|DW_TAG}}
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// CHECK: 0x[[ANONC:[0-9a-f]*]]:{{.*}}DW_TAG_class_type
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// CHECK-NEXT: DW_AT_name{{.*}}"AnonC"
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// This function is only here to hold objects that refer to the above types.
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void foo() {
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AliasForS s;
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S::Nested n;
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N::C nc;
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AnonC ac;
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U u;
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}
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// The second CU contents depend on whether we disabled ODR uniquing or
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// not.
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// CHECK: TAG_compile_unit
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// CHECK-NOT: DW_TAG
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// CHECK: AT_name{{.*}}"odr-uniquing.cpp"
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// The union itself is not uniqued for now (for dsymutil-compatibility),
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// but the types defined inside it should be.
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// ODR: DW_TAG_union_type
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// ODR-NEXT: DW_AT_name{{.*}}"U"
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// ODR: DW_TAG_member
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// ODR-NEXT: DW_AT_name{{.*}}"C"
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// ODR-NOT: DW_TAG
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// ODR: DW_AT_type{{.*}}[[UC]]
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// ODR: DW_TAG_member
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// ODR-NEXT: DW_AT_name{{.*}}"S"
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// ODR-NOT: DW_TAG
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// ODR: DW_AT_type{{.*}}[[US]]
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// Check that the variables point to the right type
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// ODR: DW_TAG_subprogram
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// ODR-NOT: DW_TAG
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// ODR: DW_AT_name{{.*}}"foo"
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// ODR-NOT: NULL
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// ODR: DW_TAG_variable
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// ODR-NOT: DW_TAG
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// ODR: DW_AT_name{{.*}}"s"
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// ODR-NOT: DW_TAG
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// ODR: DW_AT_type{{.*}}[[ALIASFORS]]
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// ODR: DW_AT_name{{.*}}"n"
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// ODR-NOT: DW_TAG
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// ODR: DW_AT_type{{.*}}[[NESTED]]
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// ODR: DW_TAG_variable
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// ODR-NOT: DW_TAG
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// ODR: DW_AT_name{{.*}}"nc"
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// ODR-NOT: DW_TAG
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// ODR: DW_AT_type{{.*}}[[NC]]
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// ODR: DW_TAG_variable
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// ODR-NOT: DW_TAG
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// ODR: DW_AT_name{{.*}}"ac"
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// ODR-NOT: DW_TAG
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// ODR: DW_AT_type{{.*}}[[ANONC]]
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// With no ODR uniquing, we should get copies of all the types:
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// This is "struct S"
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// NOODR: 0x[[DUP_S:[0-9a-f]*]]:{{.*}}DW_TAG_structure_type
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// NOODR-NEXT: DW_AT_name{{.*}}"S"
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// NOODR-NOT: NULL
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// NOODR: 0x[[DUP_NESTED:[0-9a-f]*]]:{{.*}}DW_TAG_structure_type
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// NOODR-NOT: DW_TAG
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// NOODR: DW_AT_name{{.*}}"Nested"
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// This is "class N::C"
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// NOODR: DW_TAG_namespace
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// NOODR-NEXT: DW_AT_name{{.*}}"N"
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// NOODR: 0x[[DUP_NC:[0-9a-f]*]]:{{.*}}DW_TAG_class_type
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// NOODR-NEXT: DW_AT_name{{.*}}"C"
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// This is "union U"
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// NOODR: 0x[[DUP_U:[0-9a-f]*]]:{{.*}}DW_TAG_union_type
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// NOODR-NEXT: DW_AT_name{{.*}}"U"
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// NOODR-NOT: NULL
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// NOODR: 0x[[DUP_UC:[0-9a-f]*]]:{{.*}}DW_TAG_class_type
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// NOODR-NOT: NULL
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// NOODR: 0x[[DUP_US:[0-9a-f]*]]:{{.*}}DW_TAG_structure_type
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// NOODR: NULL
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// Check that the variables point to the right type
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// NOODR: DW_TAG_subprogram
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// NOODR-NOT: DW_TAG
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// NOODR: DW_AT_name{{.*}}"foo"
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// NOODR-NOT: NULL
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// NOODR: DW_TAG_variable
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// NOODR-NOT: DW_TAG
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// NOODR: DW_AT_name{{.*}}"s"
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// NOODR-NOT: DW_TAG
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// NOODR: DW_AT_type{{.*}}0x[[DUP_ALIASFORS:[0-9a-f]*]]
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// NOODR: DW_TAG_variable
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// NOODR-NOT: DW_TAG
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// NOODR: DW_AT_name{{.*}}"n"
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// NOODR-NOT: DW_TAG
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// NOODR: DW_AT_type{{.*}}[[DUP_NESTED]]
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// NOODR: DW_TAG_variable
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// NOODR-NOT: DW_TAG
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// NOODR: DW_AT_name{{.*}}"nc"
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// NOODR-NOT: DW_TAG
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// NOODR: DW_AT_type{{.*}}[[DUP_NC]]
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// NOODR: DW_TAG_variable
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// NOODR-NOT: DW_TAG
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// NOODR: DW_AT_name{{.*}}"ac"
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// NOODR-NOT: DW_TAG
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// NOODR: DW_AT_type{{.*}}0x[[DUP_ANONC:[0-9a-f]*]]
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// This is "AliasForS"
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// NOODR: 0x[[DUP_ALIASFORS]]:{{.*}}DW_TAG_typedef
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// NOODR-NOT: DW_TAG
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// NOODR: DW_AT_name{{.*}}"AliasForS"
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// This is "(anonymous namespace)::AnonC"
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// NOODR: DW_TAG_namespace
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// NOODR-NOT: {{DW_AT_name|NULL|DW_TAG}}
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// NOODR: 0x[[DUP_ANONC]]:{{.*}}DW_TAG_class_type
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// NOODR-NEXT: DW_AT_name{{.*}}"AnonC"
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