From: Michael Beck <beck@ipd.info.uni-karlsruhe.de>
Date: Tue, 23 Sep 2008 17:13:40 +0000 (+0000)
Subject: - add missing initialization of have_const_functions
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=e53f30472457acff3fcac2c70385307c70e41873;p=cparser

- add missing initialization of have_const_functions

[r22214]
---

diff --git a/ast2firm.c b/ast2firm.c
index 6c47533..1c06786 100644
--- a/ast2firm.c
+++ b/ast2firm.c
@@ -64,6 +64,8 @@ static int             inner_function_idx;
 static ir_node        *ijmp_list;
 static bool            constant_folding;
 
+extern bool            have_const_functions;
+
 static const declaration_t *current_function_decl;
 static ir_node             *current_function_name;
 static ir_node             *current_funcsig;
@@ -1049,6 +1051,7 @@ static void handle_gnu_attributes_ent(ir_entity *ent, declaration_t *decl)
 	}
 	if (decl->modifiers & DM_CONST) {
 		set_entity_additional_property(ent, mtp_property_const);
+		have_const_functions = true;
 	}
 	if (decl->modifiers & DM_USED) {
 		/* TRUE if the declaration includes the GNU
diff --git a/driver/firm_opt.c b/driver/firm_opt.c
index ed28ec9..ee3f580 100644
--- a/driver/firm_opt.c
+++ b/driver/firm_opt.c
@@ -303,7 +303,7 @@ static int firm_const_exists;
 
 static void do_optimize_funccalls(void)
 {
-	optimize_funccalls(true, NULL);
+	optimize_funccalls(firm_const_exists, NULL);
 }
 
 static void do_gcse(ir_graph *irg)
diff --git a/main.c b/main.c
index d75333d..1dd4976 100644
--- a/main.c
+++ b/main.c
@@ -114,6 +114,9 @@ bool strict_mode = false;
 /** use builtins for some libc functions */
 bool use_builtins = false;
 
+/** we have extern function with const attribute. */
+bool have_const_functions = false;
+
 /* to switch on printing of implicit casts */
 extern bool print_implicit_casts;
 
@@ -1131,7 +1134,7 @@ int main(int argc, char **argv)
 			}
 
 			gen_firm_finish(asm_out, filename, /*c_mode=*/1,
-			                /*firm_const_exists=*/0);
+			                have_const_functions);
 			if (asm_out != out) {
 				fclose(asm_out);
 			}