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8166561: [s390] Adaptions needed for s390 port in C1 and C2

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Reviewed-by: kvn
This commit is contained in:
Goetz Lindenmaier 2016-09-22 18:29:15 +02:00
parent 7aed968c10
commit da8430daf1
15 changed files with 69 additions and 21 deletions
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12
hotspot/src/share/vm/c1/c1_LinearScan.cpp
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@ -1077,7 +1077,7 @@ IntervalUseKind LinearScan::use_kind_of_input_operand(LIR_Op* op, LIR_Opr opr) {
}
#ifdef X86
#if defined(X86) || defined(S390)
if (op->code() == lir_cmove) {
// conditional moves can handle stack operands
assert(op->result_opr()->is_register(), "result must always be in a register");
@ -1088,7 +1088,7 @@ IntervalUseKind LinearScan::use_kind_of_input_operand(LIR_Op* op, LIR_Opr opr) {
// this operand is allowed to be on the stack in some cases
BasicType opr_type = opr->type_register();
if (opr_type == T_FLOAT || opr_type == T_DOUBLE) {
if ((UseSSE == 1 && opr_type == T_FLOAT) || UseSSE >= 2) {
if ((UseSSE == 1 && opr_type == T_FLOAT) || UseSSE >= 2 S390_ONLY(|| true)) {
// SSE float instruction (T_DOUBLE only supported with SSE2)
switch (op->code()) {
case lir_cmp:
@ -1144,7 +1144,7 @@ IntervalUseKind LinearScan::use_kind_of_input_operand(LIR_Op* op, LIR_Opr opr) {
}
}
}
#endif // X86
#endif // X86 S390
// all other operands require a register
return mustHaveRegister;
@ -2653,6 +2653,11 @@ int LinearScan::append_scope_value_for_operand(LIR_Opr opr, GrowableArray<ScopeV
VMReg rname = frame_map()->fpu_regname(opr->fpu_regnr());
#ifndef __SOFTFP__
#ifndef VM_LITTLE_ENDIAN
// On S390 a (single precision) float value occupies only the high
// word of the full double register. So when the double register is
// stored to memory (e.g. by the RegisterSaver), then the float value
// is found at offset 0. I.e. the code below is not needed on S390.
#ifndef S390
if (! float_saved_as_double) {
// On big endian system, we may have an issue if float registers use only
// the low half of the (same) double registers.
@ -2667,6 +2672,7 @@ int LinearScan::append_scope_value_for_operand(LIR_Opr opr, GrowableArray<ScopeV
rname = next; // VMReg for the low bits, e.g. the real VMReg for the float
}
}
#endif // !S390
#endif
#endif
LocationValue* sv = new LocationValue(Location::new_reg_loc(loc_type, rname));