diff --git a/tests/cases/usenullcall.ll b/tests/cases/usenullcall_fastcomp.ll
similarity index 100%
rename from tests/cases/usenullcall.ll
rename to tests/cases/usenullcall_fastcomp.ll
diff --git a/tests/cases/usenullcall.txt b/tests/cases/usenullcall_fastcomp.txt
similarity index 100%
rename from tests/cases/usenullcall.txt
rename to tests/cases/usenullcall_fastcomp.txt