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comparison src/cpu/x86/vm/stubGenerator_x86_32.cpp @ 2245:638119ce7cfd

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7009309: JSR 292: compiler/6991596/Test6991596.java crashes on fastdebug JDK7/b122 Reviewed-by: kvn, never
author twisti
date Tue, 01 Feb 2011 03:38:44 -0800
parents f95d63e2154a
children d89a22843c62
comparison
equal deleted inserted replaced
2244:4f26f535a225 2245:638119ce7cfd
1 /* 1 /*
2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
238 __ call(rax); 238 __ call(rax);
239 239
240 BLOCK_COMMENT("call_stub_return_address:"); 240 BLOCK_COMMENT("call_stub_return_address:");
241 return_address = __ pc(); 241 return_address = __ pc();
242 242
243 Label common_return; 243 #ifdef COMPILER2
244 244 {
245 __ BIND(common_return); 245 Label L_skip;
246 if (UseSSE >= 2) {
247 __ verify_FPU(0, "call_stub_return");
248 } else {
249 for (int i = 1; i < 8; i++) {
250 __ ffree(i);
251 }
252
253 // UseSSE <= 1 so double result should be left on TOS
254 __ movl(rsi, result_type);
255 __ cmpl(rsi, T_DOUBLE);
256 __ jcc(Assembler::equal, L_skip);
257 if (UseSSE == 0) {
258 // UseSSE == 0 so float result should be left on TOS
259 __ cmpl(rsi, T_FLOAT);
260 __ jcc(Assembler::equal, L_skip);
261 }
262 __ ffree(0);
263 }
264 __ BIND(L_skip);
265 }
266 #endif // COMPILER2
246 267
247 // store result depending on type 268 // store result depending on type
248 // (everything that is not T_LONG, T_FLOAT or T_DOUBLE is treated as T_INT) 269 // (everything that is not T_LONG, T_FLOAT or T_DOUBLE is treated as T_INT)
249 __ movptr(rdi, result); 270 __ movptr(rdi, result);
250 Label is_long, is_float, is_double, exit; 271 Label is_long, is_float, is_double, exit;
302 __ movdbl(Address(rdi, 0), xmm0); 323 __ movdbl(Address(rdi, 0), xmm0);
303 } else { 324 } else {
304 __ fstp_d(Address(rdi, 0)); 325 __ fstp_d(Address(rdi, 0));
305 } 326 }
306 __ jmp(exit); 327 __ jmp(exit);
307
308 // If we call compiled code directly from the call stub we will
309 // need to adjust the return back to the call stub to a specialized
310 // piece of code that can handle compiled results and cleaning the fpu
311 // stack. compiled code will be set to return here instead of the
312 // return above that handles interpreter returns.
313
314 BLOCK_COMMENT("call_stub_compiled_return:");
315 StubRoutines::x86::set_call_stub_compiled_return( __ pc());
316
317 #ifdef COMPILER2
318 if (UseSSE >= 2) {
319 __ verify_FPU(0, "call_stub_compiled_return");
320 } else {
321 for (int i = 1; i < 8; i++) {
322 __ ffree(i);
323 }
324
325 // UseSSE <= 1 so double result should be left on TOS
326 __ movl(rsi, result_type);
327 __ cmpl(rsi, T_DOUBLE);
328 __ jcc(Assembler::equal, common_return);
329 if (UseSSE == 0) {
330 // UseSSE == 0 so float result should be left on TOS
331 __ cmpl(rsi, T_FLOAT);
332 __ jcc(Assembler::equal, common_return);
333 }
334 __ ffree(0);
335 }
336 #endif /* COMPILER2 */
337 __ jmp(common_return);
338 328
339 return start; 329 return start;
340 } 330 }
341 331
342 332