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A64: Enable FCVT floating-point conversions for half-precision

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With this, we no longer have to fall back to the interpreter in any of
the FCVT floating-point conversion instructions.
This commit is contained in:
Lioncash 2019-03-23 10:16:20 -04:00
parent eb09ae27db
commit ede3d7284a
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GPG Key ID: 4E3C3CC1031BA9C7
1 changed files with 8 additions and 4 deletions
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12
src/frontend/A64/translate/impl/floating_point_data_processing_one_register.cpp
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@ -112,15 +112,18 @@ bool TranslatorVisitor::FCVT_float(Imm<2> type, Imm<2> opc, Vec Vn, Vec Vd) {
case 16:
switch (*dstsize) {
case 32:
return InterpretThisInstruction();
result = ir.FPHalfToSingle(operand, rounding_mode);
break;
case 64:
return InterpretThisInstruction();
result = ir.FPHalfToDouble(operand, rounding_mode);
break;
}
break;
case 32:
switch (*dstsize) {
case 16:
return InterpretThisInstruction();
result = ir.FPSingleToHalf(operand, rounding_mode);
break;
case 64:
result = ir.FPSingleToDouble(operand, rounding_mode);
break;
@ -129,7 +132,8 @@ bool TranslatorVisitor::FCVT_float(Imm<2> type, Imm<2> opc, Vec Vn, Vec Vd) {
case 64:
switch (*dstsize) {
case 16:
return InterpretThisInstruction();
result = ir.FPDoubleToHalf(operand, rounding_mode);
break;
case 32:
result = ir.FPDoubleToSingle(operand, rounding_mode);
break;