llvm-project/clang/test/DebugInfo/Generic/unique-internal-linkage-names-dwarf.c
Michael Buch 3f3bc4853e
[clang][test][DebugInfo] Move debug-info tests from CodeGen to DebugInfo directory (#154311)
This patch works towards consolidating all Clang debug-info into the
`clang/test/DebugInfo` directory
(https://discourse.llvm.org/t/clang-test-location-of-clang-debug-info-tests/87958).

Here we move only the `clang/test/CodeGen` tests.

The list of files i came up with is:
1. searched for anything with `*debug-info*` in the filename
2. searched for occurrences of `debug-info-kind` in the tests

I created a couple of subdirectories in `clang/test/DebugInfo` where I
thought it made sense (mostly when the tests were target-specific).

There's a couple of tests in `clang/test/CodeGen` that still set
`-debug-info-kind`. They probably don't need to do that, but I'm not
changing that as part of this PR.
2025-08-19 18:25:13 +01:00

42 lines
1.9 KiB
C

// This test checks if C functions with internal linkage names are mangled
// and the module hash suffixes attached including emitting DW_AT_linkage_name.
//
// 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
// 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
//
// 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
// 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
static int glob;
// foo should be given a uniquefied name under -funique-internal-linkage-names.
static int foo(void) {
return glob;
}
// K&R prototypes should be given uniquefied names under -funique-internal-linkage-names.
static int bar(a) int a;
{
return glob + a;
}
void baz(void) {
foo();
bar(1);
}
// PLAIN: @glob = internal global i32
// PLAIN: define internal i32 @foo()
// PLAIN: define internal i32 @bar(i32 noundef %a)
// PLAIN: distinct !DIGlobalVariable(name: "glob"{{.*}})
// PLAIN: distinct !DISubprogram(name: "foo"{{.*}})
// PLAIN: distinct !DISubprogram(name: "bar"{{.*}})
// PLAIN-NOT: linkageName:
//
// UNIQUE: @glob = internal global i32
// UNIQUE: define internal i32 @_ZL3foov.[[MODHASH:__uniq.[0-9]+]]()
// UNIQUE: define internal i32 @_ZL3bari.[[MODHASH]](i32 noundef %a)
// UNIQUE: distinct !DIGlobalVariable(name: "glob"{{.*}})
// UNIQUE: distinct !DISubprogram(name: "foo", linkageName: "_ZL3foov.[[MODHASH]]"{{.*}})
// UNIQUE: distinct !DISubprogram(name: "bar", linkageName: "_ZL3bari.[[MODHASH]]"{{.*}})