loopopts.cpp (293:c3e045194476) loopopts.cpp (318:60bc5071073f)
1/*
2 * Copyright 1999-2008 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
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
7 * published by the Free Software Foundation.
8 *

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927 // cloned x's will common up and undo this optimization and
928 // be forced back in the loop. This is annoying because it
929 // makes +VerifyOpto report false-positives on progress. I
930 // tried setting control edges on the x's to force them to
931 // not combine, but the matching gets worried when it tries
932 // to fold a StoreP and an AddP together (as part of an
933 // address expression) and the AddP and StoreP have
934 // different controls.
1/*
2 * Copyright 1999-2008 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
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
7 * published by the Free Software Foundation.
8 *

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927 // cloned x's will common up and undo this optimization and
928 // be forced back in the loop. This is annoying because it
929 // makes +VerifyOpto report false-positives on progress. I
930 // tried setting control edges on the x's to force them to
931 // not combine, but the matching gets worried when it tries
932 // to fold a StoreP and an AddP together (as part of an
933 // address expression) and the AddP and StoreP have
934 // different controls.
935 if( !x->is_Load() ) _igvn._worklist.yank(x);
935 if( !x->is_Load() && !x->is_DecodeN() ) _igvn._worklist.yank(x);
936 }
937 _igvn.remove_dead_node(n);
938 }
939 }
940 }
941 }
942
943 // Check for Opaque2's who's loop has disappeared - who's input is in the

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937 _igvn.remove_dead_node(n);
938 }
939 }
940 }
941 }
942
943 // Check for Opaque2's who's loop has disappeared - who's input is in the

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