[ELF] Clarify why `lld -flavor gnu` is used.

Pointed out by Rafael!

llvm-svn: 286857

diff --git a/lld/test/ELF/lto/timepasses.ll b/lld/test/ELF/lto/timepasses.ll
index 5cbdead..5c893e6 100644 (file)
--- a/lld/test/ELF/lto/timepasses.ll
+++ b/lld/test/ELF/lto/timepasses.ll
@@ -1,3 +1,5 @@
+; We use lld -flavor gnu because llvm-lit will append --full-shutdown to
+; the ld.lld invocation.
 ; REQUIRES: x86
 ; RUN: llvm-as %s -o %t.o
 ; RUN: lld -flavor gnu %t.o -o %t.so -shared -mllvm -time-passes 2>&1 | FileCheck %s