derek.holloway
7502bf64a4
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42 lines
1.9 KiB
C
42 lines
1.9 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 -Wno-strict-prototypes -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 -Wno-strict-prototypes -debug-info-kind=limited -dwarf-version=4 -funique-internal-linkage-names -emit-llvm -o - %s | FileCheck %s --check-prefix=UNIQUE
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//
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// RUN: %clang_cc1 -triple x86_64-unknown-linux -Wno-strict-prototypes -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 -Wno-strict-prototypes -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;
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// foo should be given a uniquefied name under -funique-internal-linkage-names.
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static int foo(void) {
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return glob;
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}
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// K&R prototypes should be given uniquefied names under -funique-internal-linkage-names.
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static int bar(a) int a;
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{
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return glob + a;
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}
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void baz(void) {
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foo();
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bar(1);
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}
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// PLAIN: @glob = internal global i32
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// PLAIN: define internal i32 @foo()
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// PLAIN: define internal i32 @bar(i32 noundef %a)
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// PLAIN: distinct !DIGlobalVariable(name: "glob"{{.*}})
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// PLAIN: distinct !DISubprogram(name: "foo"{{.*}})
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// PLAIN: distinct !DISubprogram(name: "bar"{{.*}})
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// PLAIN-NOT: linkageName:
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//
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// UNIQUE: @glob = internal global i32
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// UNIQUE: define internal i32 @_ZL3foov.[[MODHASH:__uniq.[0-9]+]]()
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// UNIQUE: define internal i32 @_ZL3bari.[[MODHASH]](i32 noundef %a)
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// UNIQUE: distinct !DIGlobalVariable(name: "glob"{{.*}})
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// UNIQUE: distinct !DISubprogram(name: "foo", linkageName: "_ZL3foov.[[MODHASH]]"{{.*}})
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// UNIQUE: distinct !DISubprogram(name: "bar", linkageName: "_ZL3bari.[[MODHASH]]"{{.*}})
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