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comparison src/share/vm/opto/lcm.cpp @ 6179:8c92982cbbc4

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7119644: Increase superword's vector size up to 256 bits Summary: Increase vector size up to 256-bits for YMM AVX registers on x86. Reviewed-by: never, twisti, roland
author kvn
date Fri, 15 Jun 2012 01:25:19 -0700
parents cf407b7d3d78
children e626685e9f6c
comparison
equal deleted inserted replaced
6146:eba1d5bce9e8 6179:8c92982cbbc4
1 /* 1 /*
2 * Copyright (c) 1998, 2011, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 1998, 2012, 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.
137 MachNode *mach = m->as_Mach(); 137 MachNode *mach = m->as_Mach();
138 was_store = false; 138 was_store = false;
139 int iop = mach->ideal_Opcode(); 139 int iop = mach->ideal_Opcode();
140 switch( iop ) { 140 switch( iop ) {
141 case Op_LoadB: 141 case Op_LoadB:
142 case Op_LoadUB:
142 case Op_LoadUS: 143 case Op_LoadUS:
143 case Op_LoadD: 144 case Op_LoadD:
144 case Op_LoadF: 145 case Op_LoadF:
145 case Op_LoadI: 146 case Op_LoadI:
146 case Op_LoadL: 147 case Op_LoadL:
443 444
444 // Memory op for an implicit null check has to be at the end of the block 445 // Memory op for an implicit null check has to be at the end of the block
445 if( e->is_MachNullCheck() && e->in(1) == n ) 446 if( e->is_MachNullCheck() && e->in(1) == n )
446 continue; 447 continue;
447 448
449 // Schedule IV increment last.
450 if (e->is_Mach() && e->as_Mach()->ideal_Opcode() == Op_CountedLoopEnd &&
451 e->in(1)->in(1) == n && n->is_iteratively_computed())
452 continue;
453
448 uint n_choice = 2; 454 uint n_choice = 2;
449 455
450 // See if this instruction is consumed by a branch. If so, then (as the 456 // See if this instruction is consumed by a branch. If so, then (as the
451 // branch is the last instruction in the basic block) force it to the 457 // branch is the last instruction in the basic block) force it to the
452 // end of the basic block 458 // end of the basic block