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comparison src/cpu/sparc/vm/jvmciCodeInstaller_sparc.cpp @ 22114:d9f3acb4a9a1

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[SPARC] Implement constant loads from constant table with base register
author Stefan Anzinger <stefan.anzinger@oracle.com>
date Sat, 27 Jun 2015 18:02:44 +0200
parents be896a1983c0
children a0d0ecbceeb4
comparison
equal deleted inserted replaced
22113:598c75a3d1d1 22114:d9f3acb4a9a1
64 } 64 }
65 } 65 }
66 66
67 void CodeInstaller::pd_patch_DataSectionReference(int pc_offset, int data_offset) { 67 void CodeInstaller::pd_patch_DataSectionReference(int pc_offset, int data_offset) {
68 address pc = _instructions->start() + pc_offset; 68 address pc = _instructions->start() + pc_offset;
69 address const_start = _constants->start(); 69 NativeInstruction* inst = nativeInstruction_at(pc);
70 address dest = _constants->start() + data_offset; 70 NativeInstruction* inst1 = nativeInstruction_at(pc + 4);
71 71 if(inst->is_sethi() && inst1->is_nop()) {
72 _instructions->relocate(pc + NativeMovConstReg::sethi_offset, internal_word_Relocation::spec((address) dest)); 72 address const_start = _constants->start();
73 _instructions->relocate(pc + NativeMovConstReg::add_offset, internal_word_Relocation::spec((address) dest)); 73 address dest = _constants->start() + data_offset;
74 TRACE_jvmci_3("relocating at %p with destination at %p (%d)", pc, dest, data_offset); 74 if(_constants_size > 0) {
75 _instructions->relocate(pc + NativeMovConstReg::sethi_offset, internal_word_Relocation::spec((address) dest));
76 _instructions->relocate(pc + NativeMovConstReg::add_offset, internal_word_Relocation::spec((address) dest));
77 }
78 TRACE_jvmci_3("relocating at %p (+%d) with destination at %d", pc, pc_offset, data_offset);
79 } else {
80 NativeMovRegMem* load = nativeMovRegMem_at(pc);
81 // The base pointer is set 4k off (see SPARCLoadConstantTableBaseOp)
82 load->set_offset(data_offset - (1<<12));
83 TRACE_jvmci_3("relocating ld at %p (+%d) with destination at %d", pc, pc_offset, data_offset);
84 }
75 } 85 }
76 86
77 void CodeInstaller::pd_relocate_CodeBlob(CodeBlob* cb, NativeInstruction* inst) { 87 void CodeInstaller::pd_relocate_CodeBlob(CodeBlob* cb, NativeInstruction* inst) {
78 fatal("CodeInstaller::pd_relocate_CodeBlob - sparc unimp"); 88 fatal("CodeInstaller::pd_relocate_CodeBlob - sparc unimp");
79 } 89 }