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6879902: CTW failure jdk6_18/hotspot/src/cpu/sparc/vm/assembler_sparc.hpp:845

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For signatures with a large number of arguments the offset for the float store becomes too big and does not fit in 13-bit.

Reviewed-by: kvn, never
This commit is contained in:
Christian Thalinger 2009-10-06 02:11:49 -07:00
parent f34acd6601
commit e4541dcd08
5 changed files with 116 additions and 55 deletions
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6
hotspot/src/cpu/sparc/vm/assembler_sparc.cpp
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@ -2631,13 +2631,13 @@ void MacroAssembler::regcon_inc_ptr( RegisterOrConstant& dest, RegisterOrConstan
(src.is_register() && src.as_register() == G0)) {
// do nothing
} else if (dest.is_register()) {
add(dest.as_register(), ensure_rs2(src, temp), dest.as_register());
add(dest.as_register(), ensure_simm13_or_reg(src, temp), dest.as_register());
} else if (src.is_constant()) {
intptr_t res = dest.as_constant() + src.as_constant();
dest = RegisterOrConstant(res); // side effect seen by caller
} else {
assert(temp != noreg, "cannot handle constant += register");
add(src.as_register(), ensure_rs2(dest, temp), temp);
add(src.as_register(), ensure_simm13_or_reg(dest, temp), temp);
dest = RegisterOrConstant(temp); // side effect seen by caller
}
}
@ -2710,7 +2710,7 @@ void MacroAssembler::lookup_interface_method(Register recv_klass,
RegisterOrConstant itable_offset = itable_index;
regcon_sll_ptr(itable_offset, exact_log2(itableMethodEntry::size() * wordSize));
regcon_inc_ptr(itable_offset, itableMethodEntry::method_offset_in_bytes());
add(recv_klass, ensure_rs2(itable_offset, sethi_temp), recv_klass);
add(recv_klass, ensure_simm13_or_reg(itable_offset, sethi_temp), recv_klass);
// for (scan = klass->itable(); scan->interface() != NULL; scan += scan_step) {
// if (scan->interface() == intf) {