================
@@ -124,6 +135,67 @@ Value createIgnoredValue(OpBuilder &builder, Location loc,
Type ty) {
return cir::ConstantOp::create(builder, loc, ty, cir::PoisonAttr::get(ty));
}
+/// Build an updated arg_attrs ArrayAttr that drops Ignore'd args and adds
+/// llvm.signext / llvm.zeroext on Extend args. Preserves any existing arg
+/// attributes on retained arg slots.
+ArrayAttr updateArgAttrs(MLIRContext *ctx, unsigned numNewArgs,
+ ArrayAttr existingArgAttrs,
+ const FunctionClassification &fc) {
+ SmallVector<Attribute> newArgAttrs(numNewArgs, DictionaryAttr::get(ctx));
+
+ // Step 1: copy existing arg attrs over to their new positions, skipping
+ // Ignore'd args.
----------------
adams381 wrote:
The two-step approach is gone — the refactor collapses everything into a single
`updateArgAttrs` pass that skips Ignores and layers signext/zeroext on Extends
in one iteration.
https://github.com/llvm/llvm-project/pull/195745
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