[FileCheck] Permit multiple -v or -vv

`FILECHECK_OPTS` was implemented so that a test runner, such as CI,
can specify FileCheck debugging options, such as `-v` and `-vv`.
However, if a test suite has a FileCheck call that already specifies
`-v` or `-vv`, then that call will fail if `FILECHECK_OPTS` also
specifies it.

For `-vv`, this problem already exists:

`clang/test/CodeGen/aarch64-v8.2a-fp16-intrinsics-constrained.c`

It's not yet clear if the `-vv` in that test was intentional, but this
usage shouldn't fail anyway.  It's already true that FileCheck permits
`-vv` and `-v` together even though `-vv` implies `-v`.

Compare D70784, which fixed the same problem for `-dump-input`.

Reviewed By: jhenderson, thopre

Differential Revision: https://reviews.llvm.org/D82601

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/utils/FileCheck/FileCheck.cpp b/llvm/utils/FileCheck/FileCheck.cpp
index 52d0fb8..e0037b5 100644
--- a/llvm/utils/FileCheck/FileCheck.cpp
+++ b/llvm/utils/FileCheck/FileCheck.cpp
@@ -97,12 +97,12 @@ static cl::opt<bool> AllowDeprecatedDagOverlap(
              "non-overlapping CHECK-DAG implementation.\n"));
 
 static cl::opt<bool> Verbose(
-    "v", cl::init(false),
+    "v", cl::init(false), cl::ZeroOrMore,
     cl::desc("Print directive pattern matches, or add them to the input dump\n"
              "if enabled.\n"));
 
 static cl::opt<bool> VerboseVerbose(
-    "vv", cl::init(false),
+    "vv", cl::init(false), cl::ZeroOrMore,
     cl::desc("Print information helpful in diagnosing internal FileCheck\n"
              "issues, or add it to the input dump if enabled.  Implies\n"
              "-v.\n"));