Add a test

Author: quic-akaryaki

llvm/test/ThinLTO/X86/cache-emit-asm.ll

@@ -0,0 +1,15 @@
+;; This test runs thin LTO with cache only to look for memory errors, either
+;; as crashes or sanitizer errors. MCAsmStreamer has specific assumptions about
+;; the lifetime of the output stream that are easy to overlook (see #138194).
+
+; RUN: rm -rf %t.cache
+; RUN: opt -module-hash -module-summary -thinlto-bc %s -o %t1.bc
+; RUN: ld.lld --thinlto-cache-dir=%t.cache --lto-emit-asm %t1.bc
+
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+define void @globalfunc() {
+entry:
+  ret void
+}