[clang] [CIR][ABI] Add restrict, nonnull, and ReturnsNonNull attributes (PR #188281)

[via cfe-commits]

================
@@ -698,6 +704,36 @@ void CIRGenModule::constructFunctionArgumentAttributes(
             builder.getI64IntegerAttr(
                 getNaturalPointeeTypeAlignment(argType).getQuantity()));
     }
+
+    // Source-level parameter attributes (restrict, nonnull).  These
+    // require the FunctionDecl to access ParmVarDecl info.
+    if (fd) {
+      unsigned paramIdx = &argAttrList - argAttrs.data();
----------------
adams381 wrote:

Fixed by the same restructuring -- ParmVarDecl now comes from the zip loop directly.

https://github.com/llvm/llvm-project/pull/188281