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6689060: Escape Analysis does not work with Compressed Oops

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64-bits VM crashes with -XX:+AggresiveOpts (Escape Analysis + Compressed Oops)

Reviewed-by: never, sgoldman
This commit is contained in:
Vladimir Kozlov 2008-04-23 11:20:36 -07:00
parent 8ece15fd05
commit 69155d87f9
13 changed files with 235 additions and 51 deletions
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14
hotspot/src/cpu/sparc/vm/assembler_sparc.cpp
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@ -3647,6 +3647,12 @@ void MacroAssembler::encode_heap_oop_not_null(Register r) {
srlx(r, LogMinObjAlignmentInBytes, r);
}
void MacroAssembler::encode_heap_oop_not_null(Register src, Register dst) {
assert (UseCompressedOops, "must be compressed");
sub(src, G6_heapbase, dst);
srlx(dst, LogMinObjAlignmentInBytes, dst);
}
// Same algorithm as oops.inline.hpp decode_heap_oop.
void MacroAssembler::decode_heap_oop(Register src, Register dst) {
assert (UseCompressedOops, "must be compressed");
@ -3665,6 +3671,14 @@ void MacroAssembler::decode_heap_oop_not_null(Register r) {
add(r, G6_heapbase, r);
}
void MacroAssembler::decode_heap_oop_not_null(Register src, Register dst) {
// Do not add assert code to this unless you change vtableStubs_sparc.cpp
// pd_code_size_limit.
assert (UseCompressedOops, "must be compressed");
sllx(src, LogMinObjAlignmentInBytes, dst);
add(dst, G6_heapbase, dst);
}
void MacroAssembler::reinit_heapbase() {
if (UseCompressedOops) {
// call indirectly to solve generation ordering problem