[test] Put aix-xcoff-huge-relocs.ll under expensive checks

It is an order of magnitude slower than the second slowest test
according to obj/llvm/test/.lit_test_times.txt.

The two slowest are:
 2.870437e+02 CodeGen/PowerPC/aix-xcoff-huge-relocs.ll
 2.850697e+01 tools/llvm-readobj/ELF/file-header-machine-types.test

Reviewed By: hubert.reinterpretcast

Differential Revision: https://reviews.llvm.org/D102190

diff --git a/llvm/test/CodeGen/PowerPC/aix-xcoff-huge-relocs.ll b/llvm/test/CodeGen/PowerPC/aix-xcoff-huge-relocs.ll
index 01e43f8..43eae03 100644 (file)
--- a/llvm/test/CodeGen/PowerPC/aix-xcoff-huge-relocs.ll
+++ b/llvm/test/CodeGen/PowerPC/aix-xcoff-huge-relocs.ll
@@ -1,3 +1,6 @@
+;; This test takes a very long time
+; REQUIRES: expensive_checks
+
 ;; This test generates 65535 relocation entries in a single section,
 ;; which would trigger an overflow section to be generated in 32-bit mode.
 ;; Since overflow section is not supported yet, we will emit an error instead of