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7063628: Use cbcond on T4

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Add new short branch instruction to Hotspot sparc assembler.

Reviewed-by: never, twisti, jrose
This commit is contained in:
Vladimir Kozlov 2011-07-21 11:25:07 -07:00
parent aa16309657
commit 48c1293916
30 changed files with 966 additions and 1097 deletions
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18
hotspot/src/cpu/sparc/vm/c1_MacroAssembler_sparc.cpp
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@ -41,9 +41,7 @@ void C1_MacroAssembler::inline_cache_check(Register receiver, Register iCache) {
// Note: needs more testing of out-of-line vs. inline slow case
verify_oop(receiver);
load_klass(receiver, temp_reg);
cmp(temp_reg, iCache);
brx(Assembler::equal, true, Assembler::pt, L);
delayed()->nop();
cmp_and_brx_short(temp_reg, iCache, Assembler::equal, Assembler::pt, L);
AddressLiteral ic_miss(SharedRuntime::get_ic_miss_stub());
jump_to(ic_miss, temp_reg);
delayed()->nop();
@ -142,8 +140,7 @@ void C1_MacroAssembler::unlock_object(Register Rmark, Register Roop, Register Rb
}
// Test first it it is a fast recursive unlock
ld_ptr(Rbox, BasicLock::displaced_header_offset_in_bytes(), Rmark);
br_null(Rmark, false, Assembler::pt, done);
delayed()->nop();
br_null_short(Rmark, Assembler::pt, done);
if (!UseBiasedLocking) {
// load object
ld_ptr(Rbox, BasicObjectLock::obj_offset_in_bytes(), Roop);
@ -231,7 +228,7 @@ void C1_MacroAssembler::allocate_object(
if (!is_simm13(obj_size * wordSize)) {
// would need to use extra register to load
// object size => go the slow case for now
br(Assembler::always, false, Assembler::pt, slow_case);
ba(slow_case);
delayed()->nop();
return;
}
@ -257,12 +254,10 @@ void C1_MacroAssembler::initialize_object(
Label ok;
ld(klass, klassOopDesc::header_size() * HeapWordSize + Klass::layout_helper_offset_in_bytes(), t1);
if (var_size_in_bytes != noreg) {
cmp(t1, var_size_in_bytes);
cmp_and_brx_short(t1, var_size_in_bytes, Assembler::equal, Assembler::pt, ok);
} else {
cmp(t1, con_size_in_bytes);
cmp_and_brx_short(t1, con_size_in_bytes, Assembler::equal, Assembler::pt, ok);
}
brx(Assembler::equal, false, Assembler::pt, ok);
delayed()->nop();
stop("bad size in initialize_object");
should_not_reach_here();
@ -387,8 +382,7 @@ void C1_MacroAssembler::verify_stack_oop(int stack_offset) {
void C1_MacroAssembler::verify_not_null_oop(Register r) {
Label not_null;
br_notnull(r, false, Assembler::pt, not_null);
delayed()->nop();
br_notnull_short(r, Assembler::pt, not_null);
stop("non-null oop required");
bind(not_null);
if (!VerifyOops) return;