[clang] [CIR] Add support for ternary operator as lvalue (PR #163580)

Erich Keane via cfe-commits cfe-commits at lists.llvm.org
Wed Oct 15 09:22:40 PDT 2025


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@@ -2394,6 +2394,185 @@ LValue CIRGenFunction::emitPredefinedLValue(const PredefinedExpr *e) {
   return emitStringLiteralLValue(sl, gvName);
 }
 
+LValue CIRGenFunction::emitOpaqueValueLValue(const OpaqueValueExpr *e) {
+  assert(OpaqueValueMappingData::shouldBindAsLValue(e));
+  return getOrCreateOpaqueLValueMapping(e);
+}
+
+namespace {
+// Handle the case where the condition is a constant evaluatable simple integer,
+// which means we don't have to separately handle the true/false blocks.
+std::optional<LValue> handleConditionalOperatorLValueSimpleCase(
+    CIRGenFunction &cgf, const AbstractConditionalOperator *e) {
+  const Expr *condExpr = e->getCond();
+  llvm::APSInt condExprInt;
+  if (cgf.constantFoldsToSimpleInteger(condExpr, condExprInt)) {
+    bool condExprBool = condExprInt.getBoolValue();
----------------
erichkeane wrote:

Is there a good reason to introduce this variable for 1 use?  Is this used elsewhere?

https://github.com/llvm/llvm-project/pull/163580


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