[clang][llvm][NFC] Change misexpect's tolerance option to be 32-bit

In D131869 we noticed that we jump through some hoops because we parse the
tolerance option used in MisExpect.cpp into a 64-bit integer. This is
unnecessary, since the value can only be in the range [0, 100).

This patch changes the underlying type to be 32-bit from where it is
parsed in Clang through to it's use in LLVM.

Reviewed By: jloser

Differential Revision: https://reviews.llvm.org/D131935

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/Transforms/Utils/MisExpect.cpp b/llvm/lib/Transforms/Utils/MisExpect.cpp
index 8f94902..28649b0 100644
--- a/llvm/lib/Transforms/Utils/MisExpect.cpp
+++ b/llvm/lib/Transforms/Utils/MisExpect.cpp
@@ -58,7 +58,7 @@ static cl::opt<bool> PGOWarnMisExpect(
     cl::desc("Use this option to turn on/off "
              "warnings about incorrect usage of llvm.expect intrinsics."));
 
-static cl::opt<unsigned> MisExpectTolerance(
+static cl::opt<uint32_t> MisExpectTolerance(
     "misexpect-tolerance", cl::init(0),
     cl::desc("Prevents emiting diagnostics when profile counts are "
              "within N% of the threshold.."));
@@ -72,7 +72,7 @@ bool isMisExpectDiagEnabled(LLVMContext &Ctx) {
 }
 
 uint64_t getMisExpectTolerance(LLVMContext &Ctx) {
-  return std::max(static_cast<uint64_t>(MisExpectTolerance),
+  return std::max(static_cast<uint32_t>(MisExpectTolerance),
                   Ctx.getDiagnosticsMisExpectTolerance());
 }