[clang] [CIR] Upstream ArraySubscriptExpr for fixed size array (PR #134536)

Andy Kaylor via cfe-commits cfe-commits at lists.llvm.org
Mon Apr 7 14:08:52 PDT 2025


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@@ -232,6 +233,161 @@ LValue CIRGenFunction::emitUnaryOpLValue(const UnaryOperator *e) {
   llvm_unreachable("Unknown unary operator kind!");
 }
 
+/// If the specified expr is a simple decay from an array to pointer,
+/// return the array subexpression.
+/// FIXME: this could be abstracted into a common AST helper.
+static const Expr *isSimpleArrayDecayOperand(const Expr *e) {
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andykaylor wrote:

```suggestion
static const Expr *getSimpleArrayDecayOperand(const Expr *e) {
```
Functions starting with "is" should return bool. Since that's not what we want here, the name shouldn't suggest it is.

https://github.com/llvm/llvm-project/pull/134536


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