Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/opto/reg_split.cpp
src/share/vm/opto/reg_split.cpp
- changeset 9333
- 2fccf735a116
- parent 6198
- 55fb97c4c58d
- child 9448
- 73d689add964
- child 9741
- 7e0a4478e80f
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| 9332:ae93017b2930 | 9333:2fccf735a116 |
|---|---|
| 1 /* | 1 /* |
| 2 * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. | 2 * Copyright (c) 2000, 2018, 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. |
| 57 // not cover the input (or output), use the input (or output) mask instead. | 57 // not cover the input (or output), use the input (or output) mask instead. |
| 58 Node *PhaseChaitin::get_spillcopy_wide( Node *def, Node *use, uint uidx ) { | 58 Node *PhaseChaitin::get_spillcopy_wide( Node *def, Node *use, uint uidx ) { |
| 59 // If ideal reg doesn't exist we've got a bad schedule happening | 59 // If ideal reg doesn't exist we've got a bad schedule happening |
| 60 // that is forcing us to spill something that isn't spillable. | 60 // that is forcing us to spill something that isn't spillable. |
| 61 // Bail rather than abort | 61 // Bail rather than abort |
| 62 int ireg = def->ideal_reg(); | 62 uint ireg = def->ideal_reg(); |
| 63 if( ireg == 0 || ireg == Op_RegFlags ) { | 63 if( ireg == 0 || ireg == Op_RegFlags ) { |
| 64 assert(false, "attempted to spill a non-spillable item"); | 64 assert(false, "attempted to spill a non-spillable item"); |
| 65 C->record_method_not_compilable("attempted to spill a non-spillable item"); | 65 C->record_method_not_compilable("attempted to spill a non-spillable item"); |
| 66 return NULL; | 66 return NULL; |
| 67 } | 67 } |
| 1161 set_was_spilled(n); | 1161 set_was_spilled(n); |
| 1162 assert(!n->is_Phi(),"Cannot insert Phi into DEFS list"); | 1162 assert(!n->is_Phi(),"Cannot insert Phi into DEFS list"); |
| 1163 // Grab UP info for DEF | 1163 // Grab UP info for DEF |
| 1164 const RegMask &dmask = n->out_RegMask(); | 1164 const RegMask &dmask = n->out_RegMask(); |
| 1165 bool defup = dmask.is_UP(); | 1165 bool defup = dmask.is_UP(); |
| 1166 int ireg = n->ideal_reg(); | 1166 uint ireg = n->ideal_reg(); |
| 1167 bool is_vect = RegMask::is_vector(ireg); | 1167 bool is_vect = RegMask::is_vector(ireg); |
| 1168 // Only split at Def if this is a HRP block or bound (and spilled once) | 1168 // Only split at Def if this is a HRP block or bound (and spilled once) |
| 1169 if( !n->rematerialize() && | 1169 if( !n->rematerialize() && |
| 1170 (((dmask.is_bound(ireg) || !is_vect && dmask.is_misaligned_pair()) && | 1170 (((dmask.is_bound(ireg) || !is_vect && dmask.is_misaligned_pair()) && |
| 1171 (deflrg._direct_conflict || deflrg._must_spill)) || | 1171 (deflrg._direct_conflict || deflrg._must_spill)) || |
