Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Implement weak and alias function attributes #24

Merged
merged 1 commit into from Jul 28, 2023
Merged

Implement weak and alias function attributes #24

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Jump to
Jump to file
Failed to load files.
Diff view
Diff view
19 changes: 19 additions & 0 deletions gcc/jit/jit-playback.cc
View file
Open in desktop
Expand Up @@ -515,6 +515,8 @@ const char* fn_attribute_to_string(gcc_jit_fn_attribute attr)
{
switch (attr)
{
case GCC_JIT_FN_ATTRIBUTE_ALIAS:
return "alias";
case GCC_JIT_FN_ATTRIBUTE_ALWAYS_INLINE:
return "always_inline";
case GCC_JIT_FN_ATTRIBUTE_INLINE:
Expand All @@ -535,6 +537,8 @@ const char* fn_attribute_to_string(gcc_jit_fn_attribute attr)
return "pure";
case GCC_JIT_FN_ATTRIBUTE_CONST:
return "const";
case GCC_JIT_FN_ATTRIBUTE_WEAK:
return "weak";
}
return NULL;
}
Expand Down Expand Up @@ -682,6 +686,9 @@ new_function (location *loc,
/* See handle_const_attribute in gcc/c-family/c-attribs.cc. */
else if (attr == GCC_JIT_FN_ATTRIBUTE_CONST)
TREE_READONLY (fndecl) = 1;
/* See handle_weak_attribute in gcc/c-family/c-attribs.cc. */
else if (attr == GCC_JIT_FN_ATTRIBUTE_WEAK)
declare_weak (fndecl);

const char* attribute = fn_attribute_to_string (attr);
if (attribute)
Expand All @@ -706,6 +713,15 @@ new_function (location *loc,
if (!ident || !targetm.target_option.valid_attribute_p (fndecl, ident, attribute_value, 0))
continue;

/* See handle_alias_ifunc_attribute in gcc/c-family/c-attribs.cc. */
if (name == GCC_JIT_FN_ATTRIBUTE_ALIAS)
{
tree id = get_identifier (value.c_str ());
/* This counts as a use of the object pointed to. */
TREE_USED (id) = 1;
DECL_INITIAL (fndecl) = error_mark_node;
}

if (ident)
DECL_ATTRIBUTES (fndecl) =
tree_cons (ident, attribute_value, DECL_ATTRIBUTES (fndecl));
Expand Down Expand Up @@ -2282,6 +2298,9 @@ postprocess ()

current_function_decl = NULL;
}
else
/* Add to cgraph to output aliases: */
rest_of_decl_compilation (m_inner_fndecl, true, 0);
}

/* Don't leak vec's internal buffer (in non-GC heap) when we are
Expand Down
2 changes: 2 additions & 0 deletions gcc/jit/libgccjit.h
View file
Open in desktop
Expand Up @@ -2097,6 +2097,7 @@ gcc_jit_type_set_packed (gcc_jit_type *type);
/* Function attributes. */
enum gcc_jit_fn_attribute
{
GCC_JIT_FN_ATTRIBUTE_ALIAS,
GCC_JIT_FN_ATTRIBUTE_ALWAYS_INLINE,
GCC_JIT_FN_ATTRIBUTE_INLINE,
GCC_JIT_FN_ATTRIBUTE_NOINLINE,
Expand All @@ -2107,6 +2108,7 @@ enum gcc_jit_fn_attribute
GCC_JIT_FN_ATTRIBUTE_RETURNS_TWICE,
GCC_JIT_FN_ATTRIBUTE_PURE,
GCC_JIT_FN_ATTRIBUTE_CONST,
GCC_JIT_FN_ATTRIBUTE_WEAK,
};

/* Add an attribute to a function. */
Expand Down