================
@@ -477,6 +477,13 @@ llvm::Type *CodeGenTypes::ConvertType(QualType T) {
break;
case BuiltinType::LongDouble:
LongDoubleReferenced = true;
+ if (getTarget().hasSoftX87LongDouble()) {
+ // For ARM64EC, the software x87 `long double` is an integer image
+ // of the value in a 16-byte slot. All computation goes through
+ // `double` via runtime helper calls.
+ ResultType = llvm::IntegerType::get(getLLVMContext(), 128);
----------------
lhmouse wrote:
Added software lowering in 13466c8a8f6943a19f971c9809e6b8f7a5b4583f
https://github.com/llvm/llvm-project/pull/237057
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