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7010618: C1: array length should be treated at int on 64bit during array allocation

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Sign-extend the length argument during array allocation

Reviewed-by: never, kvn
This commit is contained in:
Igor Veresov 2011-01-06 16:03:20 -08:00
parent 34b0ff28e8
commit c6f34365c2
2 changed files with 7 additions and 3 deletions
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4
hotspot/src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -2358,6 +2358,8 @@ void LIR_Assembler::emit_alloc_array(LIR_OpAllocArray* op) {
op->tmp3()->as_register() == G4 &&
op->tmp4()->as_register() == O1 &&
op->klass()->as_register() == G5, "must be");
LP64_ONLY( __ signx(op->len()->as_register()); )
if (UseSlowPath ||
(!UseFastNewObjectArray && (op->type() == T_OBJECT || op->type() == T_ARRAY)) ||
(!UseFastNewTypeArray && (op->type() != T_OBJECT && op->type() != T_ARRAY))) {

6
hotspot/src/cpu/x86/vm/c1_LIRAssembler_x86.cpp
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -1641,12 +1641,14 @@ void LIR_Assembler::emit_alloc_obj(LIR_OpAllocObj* op) {
}
void LIR_Assembler::emit_alloc_array(LIR_OpAllocArray* op) {
Register len = op->len()->as_register();
LP64_ONLY( __ movslq(len, len); )
if (UseSlowPath ||
(!UseFastNewObjectArray && (op->type() == T_OBJECT || op->type() == T_ARRAY)) ||
(!UseFastNewTypeArray && (op->type() != T_OBJECT && op->type() != T_ARRAY))) {
__ jmp(*op->stub()->entry());
} else {
Register len = op->len()->as_register();
Register tmp1 = op->tmp1()->as_register();
Register tmp2 = op->tmp2()->as_register();
Register tmp3 = op->tmp3()->as_register();