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comparison src/cpu/x86/vm/x86_64.ad @ 4114:6729bbc1fcd6

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7003454: order constants in constant table by number of references in code Reviewed-by: kvn, never, bdelsart
author twisti
date Wed, 16 Nov 2011 01:39:50 -0800
parents d8cb48376797
children db2e64ca2d5a
comparison
equal deleted inserted replaced
4113:8c57262447d3 4114:6729bbc1fcd6
841 __ nop(); // (target for branch to avoid branch to branch) 841 __ nop(); // (target for branch to avoid branch to branch)
842 } 842 }
843 843
844 844
845 //============================================================================= 845 //=============================================================================
846 const bool Matcher::constant_table_absolute_addressing = true;
847 const RegMask& MachConstantBaseNode::_out_RegMask = RegMask::Empty; 846 const RegMask& MachConstantBaseNode::_out_RegMask = RegMask::Empty;
847
848 int Compile::ConstantTable::calculate_table_base_offset() const {
849 return 0; // absolute addressing, no offset
850 }
848 851
849 void MachConstantBaseNode::emit(CodeBuffer& cbuf, PhaseRegAlloc* ra_) const { 852 void MachConstantBaseNode::emit(CodeBuffer& cbuf, PhaseRegAlloc* ra_) const {
850 // Empty encoding 853 // Empty encoding
851 } 854 }
852 855
975 masm.jcc(Assembler::equal, L); 978 masm.jcc(Assembler::equal, L);
976 masm.stop("Stack is not properly aligned!"); 979 masm.stop("Stack is not properly aligned!");
977 masm.bind(L); 980 masm.bind(L);
978 } 981 }
979 #endif 982 #endif
983
984 if (C->has_mach_constant_base_node()) {
985 // NOTE: We set the table base offset here because users might be
986 // emitted before MachConstantBaseNode.
987 Compile::ConstantTable& constant_table = C->constant_table();
988 constant_table.set_table_base_offset(constant_table.calculate_table_base_offset());
989 }
980 } 990 }
981 991
982 uint MachPrologNode::size(PhaseRegAlloc* ra_) const 992 uint MachPrologNode::size(PhaseRegAlloc* ra_) const
983 { 993 {
984 return MachNode::size(ra_); // too many variables; just compute it 994 return MachNode::size(ra_); // too many variables; just compute it