[llvm] [NewPM] Handle error in TargetPassRegistry.inc (PR #86112)

[via llvm-commits]

https://github.com/paperchalice created https://github.com/llvm/llvm-project/pull/86112

Mistakenly believing that checking Expected is sufficient.

>From d839e4465ba0705d162f863414f5e1e9d7efee72 Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 21 Mar 2024 19:17:59 +0800
Subject: [PATCH] [NewPM] Handle error in TargetPassRegistry.inc

---
 llvm/include/llvm/Passes/TargetPassRegistry.inc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/llvm/include/llvm/Passes/TargetPassRegistry.inc b/llvm/include/llvm/Passes/TargetPassRegistry.inc
index 50766a99f6a72f..b618331c69988e 100644
--- a/llvm/include/llvm/Passes/TargetPassRegistry.inc
+++ b/llvm/include/llvm/Passes/TargetPassRegistry.inc
@@ -80,8 +80,10 @@ if (PopulateClassToPassNames) {
 #define ADD_PASS_WITH_PARAMS(NAME, CREATE_PASS, PARSER)                        \
   if (PassBuilder::checkParametrizedPassName(Name, NAME)) {                    \
     auto Params = PassBuilder::parsePassParameters(PARSER, Name, NAME);        \
-    if (!Params)                                                               \
+    if (!Params) {                                                             \
+      errs() << NAME ": " << toString(Params.takeError()) << '\n';             \
       return false;                                                            \
+    }                                                                          \
     PM.addPass(CREATE_PASS(Params.get()));                                     \
     return true;                                                               \
   }