Mercurial > hg > graal-compiler
annotate src/cpu/x86/vm/icache_x86.cpp @ 1848:c393f046f4c5
6991512: G1 barriers fail with 64bit C1
Summary: Fix compare-and-swap intrinsic problem with G1 post-barriers and issue with branch ranges in G1 stubs on sparc
Reviewed-by: never, kvn
| author | iveresov |
|---|---|
| date | Tue, 12 Oct 2010 23:51:20 -0700 |
| parents | c18cbe5936b8 |
| children | f95d63e2154a |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
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2 * Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved. |
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| 5 * This code is free software; you can redistribute it and/or modify it | |
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| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 #include "incls/_precompiled.incl" | |
| 26 #include "incls/_icache_x86.cpp.incl" | |
| 27 | |
| 28 #define __ _masm-> | |
| 29 | |
| 30 void ICacheStubGenerator::generate_icache_flush(ICache::flush_icache_stub_t* flush_icache_stub) { | |
| 31 StubCodeMark mark(this, "ICache", "flush_icache_stub"); | |
| 32 | |
| 33 address start = __ pc(); | |
| 34 #ifdef AMD64 | |
| 35 | |
| 36 const Register addr = c_rarg0; | |
| 37 const Register lines = c_rarg1; | |
| 38 const Register magic = c_rarg2; | |
| 39 | |
| 40 Label flush_line, done; | |
| 41 | |
| 42 __ testl(lines, lines); | |
| 43 __ jcc(Assembler::zero, done); | |
| 44 | |
| 45 // Force ordering wrt cflush. | |
| 46 // Other fence and sync instructions won't do the job. | |
| 47 __ mfence(); | |
| 48 | |
| 49 __ bind(flush_line); | |
| 50 __ clflush(Address(addr, 0)); | |
| 304 | 51 __ addptr(addr, ICache::line_size); |
| 0 | 52 __ decrementl(lines); |
| 53 __ jcc(Assembler::notZero, flush_line); | |
| 54 | |
| 55 __ mfence(); | |
| 56 | |
| 57 __ bind(done); | |
| 58 | |
| 59 #else | |
| 60 const Address magic(rsp, 3*wordSize); | |
| 61 __ lock(); __ addl(Address(rsp, 0), 0); | |
| 62 #endif // AMD64 | |
| 304 | 63 __ movptr(rax, magic); // Handshake with caller to make sure it happened! |
| 0 | 64 __ ret(0); |
| 65 | |
| 66 // Must be set here so StubCodeMark destructor can call the flush stub. | |
| 67 *flush_icache_stub = (ICache::flush_icache_stub_t)start; | |
| 68 } | |
| 69 | |
| 70 #undef __ |