Add some unit tests for DenormalMode helper

Split out from D143180
llvm · Jun 22, 2023 · d1c21d0 · d1c21d0
1 parent 411deb9
commit d1c21d0
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/llvm/unittests/ADT/FloatingPointMode.cpp b/llvm/unittests/ADT/FloatingPointMode.cpp
@@ -219,4 +219,11 @@ TEST(FloatingPointModeTest, DenormalModeMerge) {
       DenormalMode::getIEEE(),
       DenormalMode::getPreserveSign().mergeCalleeMode(DenormalMode::getIEEE()));
 }
+
+TEST(FloatingPointModeTest, DenormalModePredicates) {
+  EXPECT_TRUE(DenormalMode::getPreserveSign().inputsAreZero());
+  EXPECT_TRUE(DenormalMode::getPositiveZero().inputsAreZero());
+  EXPECT_FALSE(DenormalMode::getIEEE().inputsAreZero());
+  EXPECT_FALSE(DenormalMode::getDynamic().inputsAreZero());
+}
 }