[clang] [CIR][NFC] Improve the output for missing builtin calls (PR #163884)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clangir

Author: Andy Kaylor (andykaylor)

<details>
<summary>Changes</summary>

This improves the diagnostic emitted when `errorNYI` is called for missing builtin calls so that the builtin being called is displayed in the diagnostic.

---
Full diff: https://github.com/llvm/llvm-project/pull/163884.diff


1 Files Affected:

- (modified) clang/lib/CIR/CodeGen/CIRGenBuiltin.cpp (+3-1) 


``````````diff
diff --git a/clang/lib/CIR/CodeGen/CIRGenBuiltin.cpp b/clang/lib/CIR/CodeGen/CIRGenBuiltin.cpp
index 4cfa91e09efb4..ea31871806bd7 100644
--- a/clang/lib/CIR/CodeGen/CIRGenBuiltin.cpp
+++ b/clang/lib/CIR/CodeGen/CIRGenBuiltin.cpp
@@ -463,7 +463,9 @@ RValue CIRGenFunction::emitBuiltinExpr(const GlobalDecl &gd, unsigned builtinID,
     return emitLibraryCall(*this, fd, e,
                            cgm.getBuiltinLibFunction(fd, builtinID));
 
-  cgm.errorNYI(e->getSourceRange(), "unimplemented builtin call");
+  cgm.errorNYI(e->getSourceRange(),
+               std::string("unimplemented builtin call: ") +
+                   getContext().BuiltinInfo.getName(builtinID));
   return getUndefRValue(e->getType());
 }
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/163884