[compiler-rt] Augment `uncaught-exception.test` fuzzer test to be msvc-compatible (PR #125924)

[David Justo via llvm-commits]

https://github.com/davidmrdavid updated https://github.com/llvm/llvm-project/pull/125924

>From 808ce4bc9adc0ac6bcedc3ce2018e99fcfa97088 Mon Sep 17 00:00:00 2001
From: David Justo <david.justo.1996 at gmail.com>
Date: Wed, 5 Feb 2025 12:03:07 -0800
Subject: [PATCH] Augment `uncaught-exception.test` fuzzer test to be
 msvc-compatible

---
 compiler-rt/test/fuzzer/uncaught-exception.test | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/compiler-rt/test/fuzzer/uncaught-exception.test b/compiler-rt/test/fuzzer/uncaught-exception.test
index b055c88f6d903..d1b98cfb7c74b 100644
--- a/compiler-rt/test/fuzzer/uncaught-exception.test
+++ b/compiler-rt/test/fuzzer/uncaught-exception.test
@@ -4,7 +4,10 @@
 REQUIRES: windows
 RUN: %cpp_compiler %S/UncaughtException.cpp -o %t-UncaughtException
 
-RUN: not %run %t-UncaughtException 2>&1 | FileCheck %s
+# Clang will fail the test with 'deadly signal', but other compilers may fail with different error messages.
+# For example, msvc fails with 'uncaught C++ exception'. So the error we check depends on the compiler target.
+RUN: not %run %t-UncaughtException 2>&1 | FileCheck %s --check-prefixes=CHECK-CRASH,%if target={{.*-windows-msvc.*}} %{CHECK-MSVC%} %else %{CHECK-ERROR%}
 
-CHECK: ERROR: libFuzzer: deadly signal
-CHECK: Test unit written to ./crash
+CHECK-ERROR: ERROR: libFuzzer: deadly signal
+CHECK-MSVC: ERROR: libFuzzer: uncaught C++ exception
+CHECK-CRASH: Test unit written to ./crash