Mercurial > hg > truffle
diff src/cpu/sparc/vm/vtableStubs_sparc.cpp @ 16:f8236e79048a
6664627: Merge changes made only in hotspot 11 forward to jdk 7
Reviewed-by: jcoomes
author | dcubed |
---|---|
date | Wed, 05 Dec 2007 09:00:00 -0800 |
parents | a61af66fc99e |
children | ba764ed4b6f2 |
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--- a/src/cpu/sparc/vm/vtableStubs_sparc.cpp Tue Dec 04 16:28:18 2007 -0800 +++ b/src/cpu/sparc/vm/vtableStubs_sparc.cpp Wed Dec 05 09:00:00 2007 -0800 @@ -175,17 +175,12 @@ // %%%% Could load both offset and interface in one ldx, if they were // in the opposite order. This would save a load. __ ld_ptr(L0, base + itableOffsetEntry::interface_offset_in_bytes(), L1); -#ifdef ASSERT - Label ok; - // Check that entry is non-null and an Oop - __ bpr(Assembler::rc_nz, false, Assembler::pt, L1, ok); - __ delayed()->nop(); - __ stop("null entry point found in itable's offset table"); - __ bind(ok); - __ verify_oop(L1); -#endif // ASSERT - __ cmp(G5_interface, L1); + // If the entry is NULL then we've reached the end of the table + // without finding the expected interface, so throw an exception + Label throw_icce; + __ bpr(Assembler::rc_z, false, Assembler::pn, L1, throw_icce); + __ delayed()->cmp(G5_interface, L1); __ brx(Assembler::notEqual, true, Assembler::pn, search); __ delayed()->add(L0, itableOffsetEntry::size() * wordSize, L0); @@ -223,24 +218,30 @@ __ JMP(G3_scratch, 0); __ delayed()->nop(); + __ bind(throw_icce); + Address icce(G3_scratch, StubRoutines::throw_IncompatibleClassChangeError_entry()); + __ jump_to(icce, 0); + __ delayed()->restore(); + masm->flush(); + + guarantee(__ pc() <= s->code_end(), "overflowed buffer"); + s->set_exception_points(npe_addr, ame_addr); return s; } int VtableStub::pd_code_size_limit(bool is_vtable_stub) { - if (TraceJumps || DebugVtables || CountCompiledCalls || VerifyOops) return 999; + if (TraceJumps || DebugVtables || CountCompiledCalls || VerifyOops) return 1000; else { const int slop = 2*BytesPerInstWord; // sethi;add (needed for long offsets) if (is_vtable_stub) { const int basic = 5*BytesPerInstWord; // ld;ld;ld,jmp,nop return basic + slop; } else { -#ifdef ASSERT - return 999; -#endif // ASSERT - const int basic = 17*BytesPerInstWord; // save, ld, ld, sll, and, add, add, ld, cmp, br, add, ld, add, ld, ld, jmp, restore + // save, ld, ld, sll, and, add, add, ld, cmp, br, add, ld, add, ld, ld, jmp, restore, sethi, jmpl, restore + const int basic = (20 LP64_ONLY(+ 6)) * BytesPerInstWord; return (basic + slop); } } @@ -252,29 +253,3 @@ const unsigned int icache_line_size = 32; return icache_line_size; } - - -//Reconciliation History -// 1.2 97/12/09 17:13:31 vtableStubs_i486.cpp -// 1.4 98/01/21 19:18:37 vtableStubs_i486.cpp -// 1.5 98/02/13 16:33:55 vtableStubs_i486.cpp -// 1.7 98/03/05 17:17:28 vtableStubs_i486.cpp -// 1.9 98/05/18 09:26:17 vtableStubs_i486.cpp -// 1.10 98/05/26 16:28:13 vtableStubs_i486.cpp -// 1.11 98/05/27 08:51:35 vtableStubs_i486.cpp -// 1.12 98/06/15 15:04:12 vtableStubs_i486.cpp -// 1.13 98/07/28 18:44:22 vtableStubs_i486.cpp -// 1.15 98/08/28 11:31:19 vtableStubs_i486.cpp -// 1.16 98/09/02 12:58:31 vtableStubs_i486.cpp -// 1.17 98/09/04 12:15:52 vtableStubs_i486.cpp -// 1.18 98/11/19 11:55:24 vtableStubs_i486.cpp -// 1.19 99/01/12 14:57:56 vtableStubs_i486.cpp -// 1.20 99/01/19 17:42:52 vtableStubs_i486.cpp -// 1.22 99/01/21 10:29:25 vtableStubs_i486.cpp -// 1.30 99/06/02 15:27:39 vtableStubs_i486.cpp -// 1.26 99/06/24 14:25:07 vtableStubs_i486.cpp -// 1.23 99/02/22 14:37:52 vtableStubs_i486.cpp -// 1.28 99/06/29 18:06:17 vtableStubs_i486.cpp -// 1.29 99/07/22 17:03:44 vtableStubs_i486.cpp -// 1.30 99/08/11 09:33:27 vtableStubs_i486.cpp -//End