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authornathan <nathan@138bc75d-0d04-0410-961f-82ee72b054a4>2004-08-19 10:36:07 +0000
committernathan <nathan@138bc75d-0d04-0410-961f-82ee72b054a4>2004-08-19 10:36:07 +0000
commit00b76131e87f7da2a6ebf1e13498f5bc9f33f69f (patch)
treeba738aa254abf741ddc0722884b43575c2331ca6 /gcc/params.def
parentd1299313772c832661ffe3c3d4f44a4fd09ac42d (diff)
downloadgcc-00b76131e87f7da2a6ebf1e13498f5bc9f33f69f.tar.gz
* tree.h (TYPE_CACHED_VALUES_P): New.
(TYPE_CACHED_VALUES): New. (TYPE_ORIG_SIZE_TYPE): Adjust. * tree.def (INTEGER_CST): Update documentation. * tree.c: Inlcude params.h. (build_int_cst): Cache small values. (build_type_copy): Do not copy the value cache. * c-common.c (c_common_nodes_and_builtins): Add comment, remove unneeded zeroing. * c-typeck.c (build_c_cast): Add comment about OVERFLOW setting. * expmed.c (const_mult_add_overflow_p): Clear type copy's value cache. * fold-const.c (force_fit_type): Copy value when setting overflows. (int_const_binop): Likewise. * stor-layout.c: Include params.h (set_sizetype): Create values cache. (fixup_unsigned_type): Set UNSIGNED_P before caching any values. * params.def (PARAM_INTEGER_SHARE_LIMIT): New. * params.h (INTEGER_SHARE_LIMIT): New. * Makefile.in (tree.o, stor-layout.o): Depend on PARAMS_H. * cp/decl.c (finish_enum): Do not copy value node early, copy later. * cp/lex.c (cxx_init): Force null_node to be unique. * java/parse.h (JAVA_RADIX10_FLAG): Rename to ... (JAVA_NOT_RADIX10_FLAG): ... here. Invert meaning. * java/lex.c (do_java_lex): Adjust. (error_if_numeric_overflow): Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@86247 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/params.def')
-rw-r--r--gcc/params.def8
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/params.def b/gcc/params.def
index aed7655c9a4..331e0523d2d 100644
--- a/gcc/params.def
+++ b/gcc/params.def
@@ -379,6 +379,14 @@ DEFPARAM(PARAM_MAX_SCHED_REGION_INSNS,
"The maximum number of insns in a region to be considered for interblock scheduling",
100)
+/* INTEGER_CST nodes are shared for values [{-1,0} .. N) for
+ {signed,unsigned} integral types. This determines N.
+ Experimentation shows 256 to be a good value. */
+DEFPARAM (PARAM_INTEGER_SHARE_LIMIT,
+ "integer-share-limit",
+ "The upper bound for sharing integer constants",
+ 256)
+
/*
Local variables:
mode:c