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8295926: RISC-V: C1: Fix LIRGenerator::do_LibmIntrinsic #10867

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8295926: RISC-V: C1: Fix LIRGenerator::do_LibmIntrinsic #10867

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6706d1a
Fix simply
zhengxiaolinX Oct 24, 2022
e686497
Add one test
zhengxiaolinX Oct 26, 2022
01e54b4
Maybe a license
zhengxiaolinX Oct 26, 2022
9334ce7
Fix the newly-added test
zhengxiaolinX Oct 28, 2022
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21 changes: 16 additions & 5 deletions src/hotspot/cpu/riscv/c1_LIRGenerator_riscv.cpp
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Expand Up @@ -671,19 +671,30 @@ void LIRGenerator::do_MathIntrinsic(Intrinsic* x) {
void LIRGenerator::do_LibmIntrinsic(Intrinsic* x) {
LIRItem value(x->argument_at(0), this);
value.set_destroys_register();

LIR_Opr calc_result = rlock_result(x);
LIR_Opr result_reg = result_register_for(x->type());

CallingConvention* cc = NULL;
BasicTypeList signature(1);
signature.append(T_DOUBLE);
if (x->id() == vmIntrinsics::_dpow) { signature.append(T_DOUBLE); }
cc = frame_map()->c_calling_convention(&signature);
value.load_item_force(cc->at(0));

if (x->id() == vmIntrinsics::_dpow) {
LIRItem value1(x->argument_at(1), this);

value1.set_destroys_register();

BasicTypeList signature(2);
signature.append(T_DOUBLE);
signature.append(T_DOUBLE);
cc = frame_map()->c_calling_convention(&signature);
value.load_item_force(cc->at(0));
value1.load_item_force(cc->at(1));
} else {
BasicTypeList signature(1);
signature.append(T_DOUBLE);
cc = frame_map()->c_calling_convention(&signature);
value.load_item_force(cc->at(0));
}

switch (x->id()) {
case vmIntrinsics::_dexp:
if (StubRoutines::dexp() != NULL) { __ call_runtime_leaf(StubRoutines::dexp(), getThreadTemp(), result_reg, cc->args()); }
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