X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=include%2Flibfirm%2Ftyperep.h;h=e2bc6b243880406aa17c202591cf8e15e8925e10;hb=2c7e601484413ad272d685f9f0cb3ecc27b251f7;hp=55e4f8ab3df7295f4c6709383de5f953dd2c1838;hpb=1d523ad26cd541494c1e6cd8dc4b0736f0adc2cf;p=libfirm

diff --git a/include/libfirm/typerep.h b/include/libfirm/typerep.h
index 55e4f8ab3..e2bc6b243 100644
--- a/include/libfirm/typerep.h
+++ b/include/libfirm/typerep.h
@@ -91,10 +91,13 @@
  */
 typedef enum {
 	/**
-	 * The entity is visible outside the compilation unit, but it is defined
-	 * here.
+	 * The entity is visible across compilation units. It might have an
+	 * initializer/graph.
+	 * Note that entities with visibility_external without initializer are
+	 * assumed to be defined in another compilation unit (not like C variables
+	 * which are considered 'uninitialized' in this case).
 	 */
-	ir_visibility_default,
+	ir_visibility_external,
 	/**
 	 * The entity is local to the compilation unit.
 	 * A local entity is not visible in other compilation units.
@@ -103,18 +106,13 @@ typedef enum {
 	 */
 	ir_visibility_local,
 	/**
-	 * The entity is defined outside the compilation unit but potentially used
-	 * here.
-	 */
-	ir_visibility_external,
-	/**
-	 * This has the same semantic as visibility_local. Additionally the symbol is
-	 * completely hidden from the linker (it only appears in the assembly).
+	 * This has the same semantic as visibility_local. Additionally the symbol
+	 * is completely hidden from the linker (it only appears in the assembly).
 	 * While visibility_local is probably still visible to debuggers,
 	 * visibility_private symbols aren't and probably won't appear in the object
 	 * files
 	 */
-	ir_visibility_private
+	ir_visibility_private,
 } ir_visibility;
 
 /**
@@ -157,7 +155,15 @@ typedef enum ir_linkage {
 	 * read/write behaviour to global variables or changing calling conventions
 	 * from cdecl to fastcall.
 	 */
-	IR_LINKAGE_HIDDEN_USER     = 1 << 4
+	IR_LINKAGE_HIDDEN_USER     = 1 << 4,
+	/**
+	 * Do not generate code even if the entity has a graph attached. The graph
+	 * is only used for inlining. Otherwise the entity is regarded as a
+	 * declaration of an externally defined entity.
+	 * This linkage flag can be used to implement C99 "inline" or GNU89
+	 * "extern inline".
+	 */
+	IR_LINKAGE_NO_CODEGEN      = 1 << 5,
 } ir_linkage;
 ENUM_BITSET(ir_linkage)
 
@@ -183,7 +189,8 @@ FIRM_API int entity_is_externally_visible(const ir_entity *entity);
 
 /**
  * Returns 1 if the entity has a definition (initializer) in the current
- * compilation unit
+ * compilation unit. Note that this function returns false if
+ * IR_LINKAGE_NO_CODEGEN is set even if a graph is present.
  */
 FIRM_API int entity_has_definition(const ir_entity *entity);