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src/cpu/sparc/vm/vm_version_sparc.cpp@d5fc211aea19 (annotated)

src/cpu/sparc/vm/vm_version_sparc.cpp

Mon, 25 Feb 2008 15:05:44 -0800

author

kvn

date

Mon, 25 Feb 2008 15:05:44 -0800

changeset 464

d5fc211aea19

parent 435

a61af66fc99e

child 445

28372612af5e

permissions

-rw-r--r--

6633953: type2aelembytes{T_ADDRESS} should be 8 bytes in 64 bit VM
Summary: T_ADDRESS size is defined as 'int' size (4 bytes) but C2 use it for raw pointers and as memory type for StoreP and LoadP nodes.
Reviewed-by: jrose

duke@435	1	/*
duke@435	2	* Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	# include "incls/_precompiled.incl"
duke@435	26	# include "incls/_vm_version_sparc.cpp.incl"
duke@435	27
duke@435	28	int VM_Version::_features = VM_Version::unknown_m;
duke@435	29	const char* VM_Version::_features_str = "";
duke@435	30
duke@435	31	void VM_Version::initialize() {
duke@435	32	_features = determine_features();
duke@435	33	PrefetchCopyIntervalInBytes = prefetch_copy_interval_in_bytes();
duke@435	34	PrefetchScanIntervalInBytes = prefetch_scan_interval_in_bytes();
duke@435	35	PrefetchFieldsAhead = prefetch_fields_ahead();
duke@435	36
duke@435	37	// Allocation prefetch settings
duke@435	38	intx cache_line_size = L1_data_cache_line_size();
duke@435	39	if( cache_line_size > AllocatePrefetchStepSize )
duke@435	40	AllocatePrefetchStepSize = cache_line_size;
duke@435	41	if( FLAG_IS_DEFAULT(AllocatePrefetchLines) )
duke@435	42	AllocatePrefetchLines = 3; // Optimistic value
duke@435	43	assert( AllocatePrefetchLines > 0, "invalid value");
duke@435	44	if( AllocatePrefetchLines < 1 ) // set valid value in product VM
duke@435	45	AllocatePrefetchLines = 1; // Conservative value
duke@435	46
duke@435	47	AllocatePrefetchDistance = allocate_prefetch_distance();
duke@435	48	AllocatePrefetchStyle = allocate_prefetch_style();
duke@435	49
duke@435	50	assert(AllocatePrefetchDistance % AllocatePrefetchStepSize == 0, "invalid value");
duke@435	51
duke@435	52	UseSSE = 0; // Only on x86 and x64
duke@435	53
duke@435	54	_supports_cx8 = has_v9();
duke@435	55
duke@435	56	if (is_niagara1()) {
duke@435	57	// Indirect branch is the same cost as direct
duke@435	58	if (FLAG_IS_DEFAULT(UseInlineCaches)) {
duke@435	59	UseInlineCaches = false;
duke@435	60	}
duke@435	61	#ifdef COMPILER2
duke@435	62	// Indirect branch is the same cost as direct
duke@435	63	if (FLAG_IS_DEFAULT(UseJumpTables)) {
duke@435	64	UseJumpTables = true;
duke@435	65	}
duke@435	66	// Single-issue, so entry and loop tops are
duke@435	67	// aligned on a single instruction boundary
duke@435	68	if (FLAG_IS_DEFAULT(InteriorEntryAlignment)) {
duke@435	69	InteriorEntryAlignment = 4;
duke@435	70	}
duke@435	71	if (FLAG_IS_DEFAULT(OptoLoopAlignment)) {
duke@435	72	OptoLoopAlignment = 4;
duke@435	73	}
duke@435	74	#endif
duke@435	75	}
duke@435	76
duke@435	77	char buf[512];
duke@435	78	jio_snprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s%s",
duke@435	79	(has_v8() ? ", has_v8" : ""),
duke@435	80	(has_v9() ? ", has_v9" : ""),
duke@435	81	(has_vis1() ? ", has_vis1" : ""),
duke@435	82	(has_vis2() ? ", has_vis2" : ""),
duke@435	83	(is_ultra3() ? ", is_ultra3" : ""),
duke@435	84	(is_sun4v() ? ", is_sun4v" : ""),
duke@435	85	(is_niagara1() ? ", is_niagara1" : ""),
duke@435	86	(!has_hardware_int_muldiv() ? ", no-muldiv" : ""),
duke@435	87	(!has_hardware_fsmuld() ? ", no-fsmuld" : ""));
duke@435	88
duke@435	89	// buf is started with ", " or is empty
duke@435	90	_features_str = strdup(strlen(buf) > 2 ? buf + 2 : buf);
duke@435	91
duke@435	92	#ifndef PRODUCT
duke@435	93	if (PrintMiscellaneous && Verbose) {
duke@435	94	tty->print("Allocation: ");
duke@435	95	if (AllocatePrefetchStyle <= 0) {
duke@435	96	tty->print_cr("no prefetching");
duke@435	97	} else {
duke@435	98	if (AllocatePrefetchLines > 1) {
duke@435	99	tty->print_cr("PREFETCH %d, %d lines of size %d bytes", AllocatePrefetchDistance, AllocatePrefetchLines, AllocatePrefetchStepSize);
duke@435	100	} else {
duke@435	101	tty->print_cr("PREFETCH %d, one line", AllocatePrefetchDistance);
duke@435	102	}
duke@435	103	}
duke@435	104	if (PrefetchCopyIntervalInBytes > 0) {
duke@435	105	tty->print_cr("PrefetchCopyIntervalInBytes %d", PrefetchCopyIntervalInBytes);
duke@435	106	}
duke@435	107	if (PrefetchScanIntervalInBytes > 0) {
duke@435	108	tty->print_cr("PrefetchScanIntervalInBytes %d", PrefetchScanIntervalInBytes);
duke@435	109	}
duke@435	110	if (PrefetchFieldsAhead > 0) {
duke@435	111	tty->print_cr("PrefetchFieldsAhead %d", PrefetchFieldsAhead);
duke@435	112	}
duke@435	113	}
duke@435	114	#endif // PRODUCT
duke@435	115	}
duke@435	116
duke@435	117	void VM_Version::print_features() {
duke@435	118	tty->print_cr("Version:%s", cpu_features());
duke@435	119	}
duke@435	120
duke@435	121	int VM_Version::determine_features() {
duke@435	122	if (UseV8InstrsOnly) {
duke@435	123	NOT_PRODUCT(if (PrintMiscellaneous && Verbose) tty->print_cr("Version is Forced-V8");)
duke@435	124	return generic_v8_m;
duke@435	125	}
duke@435	126
duke@435	127	int features = platform_features(unknown_m); // platform_features() is os_arch specific
duke@435	128
duke@435	129	if (features == unknown_m) {
duke@435	130	features = generic_v9_m;
duke@435	131	warning("Cannot recognize SPARC version. Default to V9");
duke@435	132	}
duke@435	133
duke@435	134	if (UseNiagaraInstrs) {
duke@435	135	if (is_niagara1(features)) {
duke@435	136	// Happy to accomodate...
duke@435	137	} else {
duke@435	138	NOT_PRODUCT(if (PrintMiscellaneous && Verbose) tty->print_cr("Version is Forced-Niagara");)
duke@435	139	features = niagara1_m;
duke@435	140	}
duke@435	141	} else {
duke@435	142	if (is_niagara1(features) && !FLAG_IS_DEFAULT(UseNiagaraInstrs)) {
duke@435	143	NOT_PRODUCT(if (PrintMiscellaneous && Verbose) tty->print_cr("Version is Forced-Not-Niagara");)
duke@435	144	features &= ~niagara1_unique_m;
duke@435	145	} else {
duke@435	146	// Happy to accomodate...
duke@435	147	}
duke@435	148	}
duke@435	149
duke@435	150	return features;
duke@435	151	}
duke@435	152
duke@435	153	static int saved_features = 0;
duke@435	154
duke@435	155	void VM_Version::allow_all() {
duke@435	156	saved_features = _features;
duke@435	157	_features = all_features_m;
duke@435	158	}
duke@435	159
duke@435	160	void VM_Version::revert() {
duke@435	161	_features = saved_features;
duke@435	162	}