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gdb/testsuite: Fix FAILs in gdb.linespec/cpcompletion.exp when using clang

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When using clang 16.0.0 to test gdb.linespec/cpcompletion.exp, I get 99
unexpected failures.  They all fail to produce a complete list of
completion options for a function, either overload2_function,
overload3_function or anon_ns_function.  This happens because clang is
optimizing them away, since they are never used.

Fix this by adding __attribute__((used)) to all declarations to the
aforementioned functions.
This commit is contained in:
Bruno Larsen
2023-01-03 15:07:47 +01:00
parent 5fb0e30857
commit 695e977378
1 changed files with 18 additions and 15 deletions
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33
gdb/testsuite/gdb.linespec/cpls.cc
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@@ -56,16 +56,17 @@ struct overload2_arg9 {};
struct overload2_arga {};
#define GEN_OVERLOAD2_FUNCTIONS(ARG1, ARG2) \
void \
void __attribute__ ((used)) \
overload2_function (ARG1) \
{} \
\
struct struct_overload2_test \
{ \
void overload2_function (ARG2); \
void __attribute__ ((used)) \
overload2_function (ARG2); \
}; \
\
void \
void __attribute__ ((used)) \
struct_overload2_test::overload2_function (ARG2) \
{}
@@ -99,23 +100,25 @@ namespace ns_overload2_test
/* Code for the overload-3 test. */
#define GEN_OVERLOAD3_FUNCTIONS(ARG1, ARG2) \
void \
void __attribute__ ((used)) \
overload3_function (ARG1) \
{} \
void \
void __attribute__ ((used)) \
overload3_function (ARG2) \
{} \
\
struct struct_overload3_test \
{ \
void overload3_function (ARG1); \
void overload3_function (ARG2); \
void __attribute__ ((used)) \
overload3_function (ARG1); \
void __attribute__ ((used)) \
overload3_function (ARG2); \
}; \
\
void \
void __attribute__ ((used)) \
struct_overload3_test::overload3_function (ARG1) \
{} \
void \
void __attribute__ ((used)) \
struct_overload3_test::overload3_function (ARG2) \
{}
@@ -343,15 +346,15 @@ namespace ns2_incomplete_scope_colon_test
namespace
{
void anon_ns_function ()
void __attribute__ ((used)) anon_ns_function ()
{}
struct anon_ns_struct
{
void anon_ns_function ();
void __attribute__ ((used)) anon_ns_function ();
};
void
void __attribute__ ((used))
anon_ns_struct::anon_ns_function ()
{}
}
@@ -361,15 +364,15 @@ namespace the_anon_ns_wrapper_ns
namespace
{
void anon_ns_function ()
void __attribute__ ((used)) anon_ns_function ()
{}
struct anon_ns_struct
{
void anon_ns_function ();
void __attribute__ ((used)) anon_ns_function ();
};
void
void __attribute__ ((used))
anon_ns_struct::anon_ns_function ()
{}
}