[llvm] [BOLT] Exit with error code on missing DWO CU (PR #125976)

[Amir Ayupov via llvm-commits]

https://github.com/aaupov created https://github.com/llvm/llvm-project/pull/125976

None

>From 74e06e6b75ce37f6dd21a1df2948b6e4f0f5395d Mon Sep 17 00:00:00 2001
From: Amir Ayupov <aaupov at fb.com>
Date: Wed, 5 Feb 2025 17:02:48 -0800
Subject: [PATCH] =?UTF-8?q?[=F0=9D=98=80=F0=9D=97=BD=F0=9D=97=BF]=20initia?=
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Created using spr 1.3.4
---
 bolt/lib/Core/BinaryContext.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/bolt/lib/Core/BinaryContext.cpp b/bolt/lib/Core/BinaryContext.cpp
index f5e11358daaa32b..3947c62ac8df00e 100644
--- a/bolt/lib/Core/BinaryContext.cpp
+++ b/bolt/lib/Core/BinaryContext.cpp
@@ -1759,7 +1759,10 @@ void BinaryContext::preprocessDebugInfo() {
           dwarf::toString(CU->getUnitDIE().find(dwarf::DW_AT_name), nullptr);
       if (std::optional<uint64_t> DWOID = CU->getDWOId()) {
         auto Iter = DWOCUs.find(*DWOID);
-        assert(Iter != DWOCUs.end() && "DWO CU was not found.");
+        if (Iter == DWOCUs.end()) {
+          this->errs() << "DWO CU was not found for " << Name << '\n';
+          exit(1);
+        }
         Name = dwarf::toString(
             Iter->second->getUnitDIE().find(dwarf::DW_AT_name), nullptr);
       }