X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbemain.c;h=e41b4d958f2f51f530cf971156cbef90bd318d06;hb=a4c23fb5fdcaf600f18b4fa7b7e104fa9b7dc514;hp=cb3bbb714d7479e8595d69a2653fdfb1a37cddf9;hpb=3f0b6e8217576d23654d406170c543a791edac56;p=libfirm

diff --git a/ir/be/bemain.c b/ir/be/bemain.c
index cb3bbb714..e41b4d958 100644
--- a/ir/be/bemain.c
+++ b/ir/be/bemain.c
@@ -240,10 +240,10 @@ void be_init_default_asm_constraint_flags(void)
 	asm_constraint_flags['\r'] = ASM_CONSTRAINT_FLAG_NO_SUPPORT;
 }
 
-asm_constraint_flags_t parse_asm_constraints(const char *constraint)
+asm_constraint_flags_t be_parse_asm_constraints(const char *constraint)
 {
+	asm_constraint_flags_t  flags = 0;
 	const char             *c;
-	asm_constraint_flags_t  flags;
 	asm_constraint_flags_t  tflags;
 
 	for (c = constraint; *c != '\0'; ++c) {
@@ -273,22 +273,35 @@ asm_constraint_flags_t parse_asm_constraints(const char *constraint)
 		}
 	}
 
-	if ( ((flags & ASM_CONSTRAINT_FLAG_MODIFIER_WRITE)
-			&& (flags & ASM_CONSTRAINT_FLAG_MODIFIER_NO_WRITE))
-		|| ((flags & ASM_CONSTRAINT_FLAG_MODIFIER_READ
-			&& (flags & ASM_CONSTRAINT_FLAG_MODIFIER_NO_READ)))) {
+	if ((
+	    	flags & ASM_CONSTRAINT_FLAG_MODIFIER_WRITE &&
+	    	flags & ASM_CONSTRAINT_FLAG_MODIFIER_NO_WRITE
+	    ) || (
+	    	flags & ASM_CONSTRAINT_FLAG_MODIFIER_READ &&
+	    	flags & ASM_CONSTRAINT_FLAG_MODIFIER_NO_READ
+	    )) {
 		flags |= ASM_CONSTRAINT_FLAG_INVALID;
 	}
+	if (!(flags & (ASM_CONSTRAINT_FLAG_MODIFIER_READ     |
+	               ASM_CONSTRAINT_FLAG_MODIFIER_WRITE    |
+	               ASM_CONSTRAINT_FLAG_MODIFIER_NO_WRITE |
+	               ASM_CONSTRAINT_FLAG_MODIFIER_NO_READ)
+	    )) {
+		flags |= ASM_CONSTRAINT_FLAG_MODIFIER_READ;
+	}
 
 	return flags;
 }
 
-bool is_valid_clobber(const char *clobber)
+int be_is_valid_clobber(const char *clobber)
 {
 	/* memory is a valid clobber. (the frontend has to detect this case too,
 	 * because it has to add memory edges to the asm) */
 	if (strcmp(clobber, "memory") == 0)
-		return true;
+		return 1;
+	/* cc (condition code) is always valid */
+	if (strcmp(clobber, "cc") == 0)
+		return 1;
 
 	return isa_if->is_valid_clobber(isa_if, clobber);
 }
@@ -359,6 +372,12 @@ void firm_be_init(void)
 	be_init_modules();
 }
 
+/* Finalize the Firm backend. */
+void firm_be_finish(void)
+{
+	be_quit_modules();
+}
+
 /* Returns the backend parameter */
 const backend_params *be_get_backend_param(void)
 {
@@ -880,10 +899,10 @@ void be_main(FILE *file_handle, const char *cup_name)
 	ir_timer_t *t = NULL;
 
 	/* The user specified another config file to read. do that now. */
-	if(strlen(config_file) > 0) {
+	if (config_file[0] != '\0') {
 		FILE *f;
 
-		if((f = fopen(config_file, "rt")) != NULL) {
+		if ((f = fopen(config_file, "rt")) != NULL) {
 			lc_opt_from_file(config_file, f, NULL);
 			fclose(f);
 		}