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8273317: crash in cmovP_cmpP_zero_zeroNode::bottom_type()

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Reviewed-by: thartmann, kvn
This commit is contained in:
sunguoyun 2021-10-20 06:37:20 +00:00 committed by Tobias Hartmann
parent 77b2789396
commit bd0bed71e5
1 changed files with 11 additions and 22 deletions
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33
src/hotspot/share/adlc/output_h.cpp
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@ -1,5 +1,5 @@
/* /*
* Copyright (c) 1998, 2020, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 1998, 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -1940,31 +1940,20 @@ void ArchDesc::declareClasses(FILE *fp) {
// it doesn't understand what that might alias. // it doesn't understand what that might alias.
fprintf(fp," const Type *bottom_type() const { return TypeRawPtr::BOTTOM; } // Box?\n"); fprintf(fp," const Type *bottom_type() const { return TypeRawPtr::BOTTOM; } // Box?\n");
} }
else if( instr->_matrule && instr->_matrule->_rChild && !strcmp(instr->_matrule->_rChild->_opType,"CMoveP") ) { else if (instr->_matrule && instr->_matrule->_rChild &&
(!strcmp(instr->_matrule->_rChild->_opType,"CMoveP") || !strcmp(instr->_matrule->_rChild->_opType,"CMoveN")) ) {
int offset = 1; int offset = 1;
// Special special hack to see if the Cmp? has been incorporated in the conditional move // Special special hack to see if the Cmp? has been incorporated in the conditional move
MatchNode *rl = instr->_matrule->_rChild->_lChild; MatchNode *rl = instr->_matrule->_rChild->_lChild;
if( rl && !strcmp(rl->_opType, "Binary") ) { if (rl && !strcmp(rl->_opType, "Binary") && rl->_rChild && strncmp(rl->_rChild->_opType, "Cmp", 3) == 0) {
MatchNode *rlr = rl->_rChild; offset = 2;
if (rlr && strncmp(rlr->_opType, "Cmp", 3) == 0) fprintf(fp," const Type *bottom_type() const { if (req() == 3) return in(2)->bottom_type();\n\tconst Type *t = in(oper_input_base()+%d)->bottom_type(); return (req() <= oper_input_base()+%d) ? t : t->meet(in(oper_input_base()+%d)->bottom_type()); } // %s\n",
offset = 2; offset, offset+1, offset+1, instr->_matrule->_rChild->_opType);
} else {
// Special hack for ideal CMove; ideal type depends on inputs
fprintf(fp," const Type *bottom_type() const { const Type *t = in(oper_input_base()+%d)->bottom_type(); return (req() <= oper_input_base()+%d) ? t : t->meet(in(oper_input_base()+%d)->bottom_type()); } // %s\n",
offset, offset+1, offset+1, instr->_matrule->_rChild->_opType);
} }
// Special hack for ideal CMoveP; ideal type depends on inputs
fprintf(fp," const Type *bottom_type() const { const Type *t = in(oper_input_base()+%d)->bottom_type(); return (req() <= oper_input_base()+%d) ? t : t->meet(in(oper_input_base()+%d)->bottom_type()); } // CMoveP\n",
offset, offset+1, offset+1);
}
else if( instr->_matrule && instr->_matrule->_rChild && !strcmp(instr->_matrule->_rChild->_opType,"CMoveN") ) {
int offset = 1;
// Special special hack to see if the Cmp? has been incorporated in the conditional move
MatchNode *rl = instr->_matrule->_rChild->_lChild;
if( rl && !strcmp(rl->_opType, "Binary") ) {
MatchNode *rlr = rl->_rChild;
if (rlr && strncmp(rlr->_opType, "Cmp", 3) == 0)
offset = 2;
}
// Special hack for ideal CMoveN; ideal type depends on inputs
fprintf(fp," const Type *bottom_type() const { const Type *t = in(oper_input_base()+%d)->bottom_type(); return (req() <= oper_input_base()+%d) ? t : t->meet(in(oper_input_base()+%d)->bottom_type()); } // CMoveN\n",
offset, offset+1, offset+1);
} }
else if (instr->is_tls_instruction()) { else if (instr->is_tls_instruction()) {
// Special hack for tlsLoadP // Special hack for tlsLoadP