compiler: add 'force_align_arg_pointer' function attribute

docs/markdown/Reference-tables.md

@@ -199,7 +199,7 @@ which are supported by GCC, Clang, and other compilers.
 
 
 | Name                     |
-|----------------------|
+|--------------------------|
 | alias                    |
 | aligned                  |
 | alloc_size               |
@@ -217,6 +217,7 @@ which are supported by GCC, Clang, and other compilers.
 | flatten                  |
 | format                   |
 | format_arg               |
+| force_align_arg_pointer³ |
 | gnu_inline               |
 | hot                      |
 | ifunc                    |
@@ -236,7 +237,7 @@ which are supported by GCC, Clang, and other compilers.
 | visibility:default†      |
 | visibility:hidden†       |
 | visibility:internal†     |
-| visibility:protected†|
+| visibility:protected†    |
 | warning                  |
 | warn_unused_result       |
 | weak                     |
@@ -248,6 +249,8 @@ which are supported by GCC, Clang, and other compilers.
 † *New in 0.52.0* These split visibility attributes are preferred to the plain
 "visibility" as they provide narrower checks.
 
+³ *New in 0.55.0*
+
 ### MSVC __declspec
 
 These values are supported using the MSVC style `__declspec` annotation,

mesonbuild/compilers/c_function_attributes.py

@@ -56,6 +56,8 @@ C_FUNC_ATTRIBUTES = {
         'int foo(const char * p, ...) __attribute__((format(printf, 1, 2)));',
     'format_arg':
         'char * foo(const char * p) __attribute__((format_arg(1)));',
+    'force_align_arg_pointer':
+        '__attribute__((force_align_arg_pointer)) int foo(void) { return 0; }',
     'gnu_inline':
         'inline __attribute__((gnu_inline)) int foo(void) { return 0; }',
     'hot':