equal
deleted
inserted
replaced
1 /* |
1 /* |
2 * Copyright (c) 1998, 2015, Oracle and/or its affiliates. All rights reserved. |
2 * Copyright (c) 1998, 2016, 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. |
720 // unique def, no uses |
720 // unique def, no uses |
721 } else { |
721 } else { |
722 // // unique def, some uses |
722 // // unique def, some uses |
723 // // must return bottom unless all uses match def |
723 // // must return bottom unless all uses match def |
724 // unique = NULL; |
724 // unique = NULL; |
|
725 #ifdef S390 |
|
726 // This case is important for move instructions on s390x. |
|
727 // On other platforms (e.g. x86), all uses always match the def. |
|
728 unique = NULL; |
|
729 #endif |
725 } |
730 } |
726 } else if( DEF_of_memory > 0 ) { |
731 } else if( DEF_of_memory > 0 ) { |
727 // multiple defs, don't care about uses |
732 // multiple defs, don't care about uses |
728 unique = NULL; |
733 unique = NULL; |
729 } else if( USE_of_memory == 1) { |
734 } else if( USE_of_memory == 1) { |