diff --git a/clang/lib/CodeGen/CGExpr.cpp b/clang/lib/CodeGen/CGExpr.cpp
index af753767f0328..493b340ecdc52 100644
--- a/clang/lib/CodeGen/CGExpr.cpp
+++ b/clang/lib/CodeGen/CGExpr.cpp
@@ -5014,8 +5014,7 @@ static CGCallee EmitDirectCallee(CodeGenFunction &CGF, GlobalDecl GD) {
     std::string NoBuiltinFD = ("no-builtin-" + FD->getName()).str();
     std::string NoBuiltins = "no-builtins";
 
-    auto *A = FD->getAttr<AsmLabelAttr>();
-    StringRef Ident = A ? A->getLabel() : FD->getName();
+    StringRef Ident = CGF.CGM.getMangledName(GD);
     std::string FDInlineName = (Ident + ".inline").str();
 
     bool IsPredefinedLibFunction =
diff --git a/clang/test/CodeGen/inline-builtin-asm-name.c b/clang/test/CodeGen/inline-builtin-asm-name.c
new file mode 100644
index 0000000000000..969174f7ac0d2
--- /dev/null
+++ b/clang/test/CodeGen/inline-builtin-asm-name.c
@@ -0,0 +1,32 @@
+// RUN: %clang_cc1 -triple i686-windows-gnu -emit-llvm -o - %s -disable-llvm-optzns | FileCheck %s
+
+// CHECK: call i32 @"\01_asm_func_name.inline"
+
+// CHECK: declare dso_local i32 @"\01_asm_func_name"(ptr noundef, i32 noundef, ptr noundef, ptr noundef)
+
+// CHECK: define internal i32 @"\01_asm_func_name.inline"
+
+// CHECK: call i32 @__mingw_vsnprintf
+
+// CHECK: declare dso_local i32 @__mingw_vsnprintf
+
+typedef unsigned int size_t;
+
+int __mingw_vsnprintf(char *_DstBuf, size_t _MaxCount, const char *_Format, __builtin_va_list _ArgList);
+
+// For the real use case, "_asm_func_name" is actually "___mingw_vsnprintf", but it's renamed in the testcase for disambiguation.
+int vsnprintf(char *__stream, size_t __n, const char *__format, __builtin_va_list __local_argv) __asm__("_asm_func_name");
+
+extern __inline__ __attribute__((__always_inline__, __gnu_inline__))
+int vsnprintf(char *__stream, size_t __n, const char *__format, __builtin_va_list __local_argv)
+{
+  return __mingw_vsnprintf(__stream, __n, __format, __local_argv);
+}
+
+void call(const char* fmt, ...) {
+  char buf[200];
+  __builtin_va_list ap;
+  __builtin_va_start(ap, fmt);
+  vsnprintf(buf, sizeof(buf), fmt, ap);
+  __builtin_va_end(ap);
+}