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8192825: PPC64: Missing null check in C1 inline cache check

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Reviewed-by: goetz
This commit is contained in:
Martin Doerr 2017-12-01 17:10:33 +01:00
parent d8284abf49
commit 1fd81dac32
1 changed files with 9 additions and 4 deletions
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13
src/hotspot/cpu/ppc/c1_MacroAssembler_ppc.cpp
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@ -41,20 +41,25 @@
void C1_MacroAssembler::inline_cache_check(Register receiver, Register iCache) {
const Register temp_reg = R12_scratch2;
Label Lmiss;
verify_oop(receiver);
MacroAssembler::null_check(receiver, oopDesc::klass_offset_in_bytes(), &Lmiss);
load_klass(temp_reg, receiver);
if (TrapBasedICMissChecks) {
if (TrapBasedICMissChecks && TrapBasedNullChecks) {
trap_ic_miss_check(temp_reg, iCache);
} else {
Label L;
Label Lok;
cmpd(CCR0, temp_reg, iCache);
beq(CCR0, L);
beq(CCR0, Lok);
bind(Lmiss);
//load_const_optimized(temp_reg, SharedRuntime::get_ic_miss_stub(), R0);
calculate_address_from_global_toc(temp_reg, SharedRuntime::get_ic_miss_stub(), true, true, false);
mtctr(temp_reg);
bctr();
align(32, 12);
bind(L);
bind(Lok);
}
}