check-init.c (flags.h): Include

2001-08-08  Alexandre Petit-Bianco  <apbianco@redhat.com>

	* check-init.c (flags.h): Include
	(check_init): Don't report uninitialized static class
	initialization flags, don't free bit index when doing static class
	initialization optimization.
	(check_for_initialization): Return type changed to `unsigned int.'
	(attach_initialized_static_class): New function.
	* class.c (add_method_1): Create the initialized static class
	table if necessary.
	(finish_class): Always emit deferred inline methods.
	* decl.c (emit_init_test_initialization): Moved to expr.c
	(complete_start_java_method): Don't traverse
	DECL_FUNCTION_INIT_TEST_TABLE.
	(lang_mark_tree): Mark hash tables in function decls.
	* expr.c (emit_init_test_initialization): Moved from decl.c.
	(build_class_init): Create LAG_DECL_SPECIFIC for the static class
	initialization flag, set DECL_CONTEXT and
	LOCAL_CLASS_INITIALIZATION_FLAG.
	(java_lang_expand_expr): Emit initialization code for static class
	initialized flags when entering block, if necessary.
	* gcj.texi (-fno-optimize-static-class-initialization): Documented.
	* java-tree.h (flag_optimize_sci): New global variable declaration.
	(DECL_FUNCTION_INITIALIZED_CLASS_TABLE): New macro.
	(DECL_FUNCTION_STATIC_METHOD_INVOCATION_COMPOUND): Likewise.
	(LOCAL_FINAL_P): Fixed typo in comment.
	(FINAL_VARIABLE_P): Likewise.
	(LOCAL_CLASS_INITIALIZATIO_FLAG): New macro.
	(LOCAL_CLASS_INITIALIZATIO_FLAG_P): Likewise.
	(struct lang_decl): New fields `ict', `smic' and `cif.'
	(check_for_initialization): New returned value for global.
	(attach_initialized_static_class): New global function.
	(STATIC_CLASS_INIT_OPT_P): New macro.
	* lang-options.h (-fno-optimize-static-class-initialization): New flag.
	* lang.c (java_decode_option): Handle
	`-fno-optimize-static-class-initialization'
	* parse.y (start_complete_expand_method): New function.
	(java_expand_method_bodies): Likewise.
	(attach_init_test_initialization_flags): Likewise.
	(adjust_init_test_initialization): Likewise.
	(emit_test_initialization): Likewise.
	(java_complete_expand_methods): Nullify abstract and native method
	bodies.
	(java_complete_expand_method): New locals `fbody', `block_body'
	and `exception_copy.' Reorganized: directly return on empty method
	bodies, call `start_complete_expand_method', remember definitely
	initialized static class in function, don't expand method bodies.
	(java_expand_classes): Call `java_expand_method_bodies' before
	`finish_class' when compiling to native.
	(resolve_expression_name): Use `orig' after building outer class
	field access.
	(patch_invoke): Remember static method invokations.

(http://gcc.gnu.org/ml/gcc-patches/2001-08/msg00454.html)

From-SVN: r44733

1 files changed, 8 insertions, 0 deletions

diff --git a/gcc/java/gcj.texi b/gcc/java/gcj.texi
index 1ccd7c9..6a52fc6 100644
--- a/gcc/java/gcj.texi
+++ b/gcc/java/gcj.texi
@@ -356,6 +356,14 @@ compiling a class with native methods, and these methods are implemented
 using JNI, then you must use @code{-fjni}.  This option causes
 @code{gcj} to generate stubs which will invoke the underlying JNI
 methods.
+
+@item -fno-optimize-static-class-initialization
+When the optimization level is greather or equal to @code{-O2},
+@code{gcj} will try to optimize the way calls into the runtime are made
+to initialize static classes upon their first use (this optimization
+isn't carried out if @code{-C} was specified.) When compiling to native
+code, @code{-fno-optimize-static-class-initialization} will turn this
+optimization off, regardless of the optimization level in use.
 @end table