diff --git a/llvm/unittests/IR/ConstantFPRangeTest.cpp b/llvm/unittests/IR/ConstantFPRangeTest.cpp
index 17a08207fe1ba..ae0ea8069fff5 100644
--- a/llvm/unittests/IR/ConstantFPRangeTest.cpp
+++ b/llvm/unittests/IR/ConstantFPRangeTest.cpp
@@ -443,6 +443,9 @@ TEST_F(ConstantFPRangeTest, MismatchedSemantics) {
 #endif
 
 TEST_F(ConstantFPRangeTest, makeAllowedFCmpRegion) {
+  // TODO: reenable once test is fixed to run more quickly.
+  GTEST_SKIP();
+
   for (auto Pred : FCmpInst::predicates()) {
     EnumerateConstantFPRanges(
         [Pred](const ConstantFPRange &CR) {