derek.holloway
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61 lines
3.0 KiB
C++
61 lines
3.0 KiB
C++
// This test checks if C++ functions with internal linkage names are mangled
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// and the module hash suffixes attached including emitting DW_AT_linkage_name.
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//
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// RUN: %clang_cc1 -triple x86_64-unknown-linux -debug-info-kind=limited -dwarf-version=4 -emit-llvm -o - %s | FileCheck %s --check-prefix=PLAIN
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// RUN: %clang_cc1 -triple x86_64-unknown-linux -debug-info-kind=limited -dwarf-version=4 -funique-internal-linkage-names -emit-llvm -o - %s | FileCheck %s --check-prefix=UNIQUE
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// RUN: %clang_cc1 -triple x86_64-unknown-linux -debug-info-kind=limited -dwarf-version=5 -emit-llvm -o - %s | FileCheck %s --check-prefix=PLAIN
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// RUN: %clang_cc1 -triple x86_64-unknown-linux -debug-info-kind=limited -dwarf-version=5 -funique-internal-linkage-names -emit-llvm -o - %s | FileCheck %s --check-prefix=UNIQUE
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static int glob_foo = 5;
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static int foo(void) {
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__builtin_printf("%p", &glob_foo);
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return glob_foo;
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}
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// Anonymous namespaces generate internal linkage symbols.
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namespace {
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int glob_bar;
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int bar() {
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return glob_bar;
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}
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}
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extern "C" {
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static int glob_zip;
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static int zip(void) {
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return glob_zip;
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}
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}
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void baz() {
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foo();
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bar();
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zip();
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}
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// PLAIN-DAG: @_ZL8glob_foo = internal global i32
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// PLAIN-DAG: define internal noundef i32 @_ZL3foov()
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// PLAIN-DAG: distinct !DIGlobalVariable(name: "glob_foo", linkageName: "_ZL8glob_foo"{{.*}})
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// PLAIN-DAG: distinct !DISubprogram(name: "foo", linkageName: "_ZL3foov"{{.*}})
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// PLAIN-DAG: @_ZN12_GLOBAL__N_18glob_barE = internal global i32
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// PLAIN-DAG: define internal noundef i32 @_ZN12_GLOBAL__N_13barEv()
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// PLAIN-DAG: distinct !DIGlobalVariable(name: "glob_bar", linkageName: "_ZN12_GLOBAL__N_18glob_barE"{{.*}})
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// PLAIN-DAG: distinct !DISubprogram(name: "bar", linkageName: "_ZN12_GLOBAL__N_13barEv"{{.*}})
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// PLAIN-DAG: @_ZL8glob_zip = internal global i32
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// PLAIN-DAG: define internal noundef i32 @_ZL3zipv()
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// PLAIN-DAG: distinct !DIGlobalVariable(name: "glob_zip", linkageName: "_ZL8glob_zip"{{.*}})
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// PLAIN-DAG: distinct !DISubprogram(name: "zip", linkageName: "_ZL3zipv"{{.*}})
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// UNIQUE-DAG: @_ZL8glob_foo = internal global i32
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// UNIQUE-DAG: define internal noundef i32 @_ZL3foov.[[MODHASH:__uniq\.[0-9]+]]()
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// UNIQUE-DAG: distinct !DIGlobalVariable(name: "glob_foo", linkageName: "_ZL8glob_foo"{{.*}})
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// UNIQUE-DAG: distinct !DISubprogram(name: "foo", linkageName: "_ZL3foov.[[MODHASH]]"{{.*}})
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// UNIQUE-DAG: @_ZN12_GLOBAL__N_18glob_barE = internal global i32
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// UNIQUE-DAG: define internal noundef i32 @_ZN12_GLOBAL__N_13barEv.[[MODHASH]]()
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// UNIQUE-DAG: distinct !DIGlobalVariable(name: "glob_bar", linkageName: "_ZN12_GLOBAL__N_18glob_barE"{{.*}})
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// UNIQUE-DAG: distinct !DISubprogram(name: "bar", linkageName: "_ZN12_GLOBAL__N_13barEv.[[MODHASH]]"{{.*}})
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// UNIQUE-DAG: @_ZL8glob_zip = internal global i32
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// UNIQUE-DAG: define internal noundef i32 @_ZL3zipv.[[MODHASH]]()
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// UNIQUE-DAG: distinct !DIGlobalVariable(name: "glob_zip", linkageName: "_ZL8glob_zip"{{.*}})
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// UNIQUE-DAG: distinct !DISubprogram(name: "zip", linkageName: "_ZL3zipv.[[MODHASH]]"{{.*}})
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