Implements TARGET_MANGLE_DECL_ASSEMBLER_NAME for LoongArch.
This is used to add function multiversioning suffixes to the assembler
name.
gcc/ChangeLog:
* config/loongarch/loongarch.cc (INCLUDE_STRING): Include.
(loongarch_mangle_decl_assembler_name): New function.
(TARGET_MANGLE_DECL_ASSEMBLER_NAME): Define.
Change-Id: I5dba7f484a2017e37f6730e9e8777c60b810bcbc
---
gcc/config/loongarch/loongarch.cc | 40 +++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/gcc/config/loongarch/loongarch.cc
b/gcc/config/loongarch/loongarch.cc
index 8b8187c37db..5b8bda59c4f 100644
--- a/gcc/config/loongarch/loongarch.cc
+++ b/gcc/config/loongarch/loongarch.cc
@@ -21,6 +21,7 @@ along with GCC; see the file COPYING3. If not see
#define IN_TARGET_CODE 1
+#define INCLUDE_STRING
#include "config.h"
#include "system.h"
#include "coretypes.h"
@@ -11469,6 +11470,41 @@ loongarch_get_function_versions_dispatcher (void *decl)
return dispatch_decl;
}
+/* Implement TARGET_MANGLE_DECL_ASSEMBLER_NAME, to add function multiversioning
+ suffixes. */
+
+tree
+loongarch_mangle_decl_assembler_name (tree decl, tree id)
+{
+ /* For function version, add the target suffix to the assembler name. */
+ if (TREE_CODE (decl) == FUNCTION_DECL
+ && DECL_FUNCTION_VERSIONED (decl))
+ {
+ std::string name = IDENTIFIER_POINTER (id) + std::string (".");
+ tree target_attr = lookup_attribute ("target_version",
+ DECL_ATTRIBUTES (decl));
+
+ if (target_attr == NULL_TREE)
+ {
+ name += "default";
+ return get_identifier (name.c_str ());
+ }
+
+ const char *version_string
+ = TREE_STRING_POINTER (TREE_VALUE (TREE_VALUE (target_attr)));
+
+ /* Replace non-alphanumeric characters with underscores as the suffix.
*/
+ for (const char *c = version_string; *c; c++)
+ name += ISALNUM (*c) == 0 ? '_' : *c;
+
+ if (DECL_ASSEMBLER_NAME_SET_P (decl))
+ SET_DECL_RTL (decl, NULL);
+
+ id = get_identifier (name.c_str ());
+ }
+ return id;
+}
+
/* Initialize the GCC target structure. */
#undef TARGET_ASM_ALIGNED_HI_OP
#define TARGET_ASM_ALIGNED_HI_OP "\t.half\t"
@@ -11764,6 +11800,10 @@ loongarch_get_function_versions_dispatcher (void *decl)
#define TARGET_GET_FUNCTION_VERSIONS_DISPATCHER \
loongarch_get_function_versions_dispatcher
+#undef TARGET_MANGLE_DECL_ASSEMBLER_NAME
+#define TARGET_MANGLE_DECL_ASSEMBLER_NAME \
+ loongarch_mangle_decl_assembler_name
+
struct gcc_target targetm = TARGET_INITIALIZER;
#include "gt-loongarch.h"
--
2.34.1
