diff options
Diffstat (limited to 'gcc/langhooks.c')
| -rw-r--r-- | gcc/langhooks.c | 35 |
1 files changed, 30 insertions, 5 deletions
diff --git a/gcc/langhooks.c b/gcc/langhooks.c index 3e15a359333..58e4eb6b21d 100644 --- a/gcc/langhooks.c +++ b/gcc/langhooks.c @@ -26,6 +26,7 @@ Boston, MA 02111-1307, USA. */ #include "toplev.h" #include "tree.h" #include "tree-inline.h" +#include "tree-simple.h" #include "rtl.h" #include "insn-config.h" #include "integrate.h" @@ -272,6 +273,19 @@ lhd_expand_expr (tree t ATTRIBUTE_UNUSED, rtx r ATTRIBUTE_UNUSED, abort (); } +/* This is the default expand_decl function. */ +/* The default language-specific function for expanding a DECL_STMT. After + the language-independent cases are handled, this function will be + called. If this function is not defined, it is assumed that + declarations other than those for variables and labels do not require + any RTL generation. */ + +int +lhd_expand_decl (tree t ATTRIBUTE_UNUSED) +{ + return 0; +} + /* This is the default decl_printable_name function. */ const char * @@ -280,6 +294,16 @@ lhd_decl_printable_name (tree decl, int verbosity ATTRIBUTE_UNUSED) return IDENTIFIER_POINTER (DECL_NAME (decl)); } +/* This compares two types for equivalence ("compatible" in C-based languages). + This routine should only return 1 if it is sure. It should not be used + in contexts where erroneously returning 0 causes problems. */ + +int +lhd_types_compatible_p (tree x, tree y) +{ + return TYPE_MAIN_VARIANT (x) == TYPE_MAIN_VARIANT (y); +} + /* lang_hooks.tree_inlining.walk_subtrees is called by walk_tree() after handling common cases, but before walking code-specific sub-trees. If this hook is overridden for a language, it should @@ -458,13 +482,14 @@ lhd_expr_size (tree exp) else return size_in_bytes (TREE_TYPE (exp)); } -/* lang_hooks.decl_uninit: Find out if a variable is uninitialized based - on DECL_INITIAL. */ -bool -lhd_decl_uninit (tree t ATTRIBUTE_UNUSED) +/* lang_hooks.gimplify_expr re-writes *EXPR_P into GIMPLE form. */ + +int +lhd_gimplify_expr (tree *expr_p ATTRIBUTE_UNUSED, tree *pre_p ATTRIBUTE_UNUSED, + tree *post_p ATTRIBUTE_UNUSED) { - return false; + return GS_UNHANDLED; } /* lang_hooks.tree_size: Determine the size of a tree with code C, |