[libc][math][c23] Update cmake.

Author: harrisonGPU

libc/test/src/math/smoke/CMakeLists.txt

@@ -3572,6 +3572,8 @@ add_fp_unittest(
     FmaTest.h
   DEPENDS
     libc.src.math.fmaf16
+    libc.src.__support.CPP.type_traits
+    libc.src.__support.FPUtil.cast
     libc.src.__support.macros.properties.types
 )
 

libc/test/src/math/smoke/FmaTest.h

@@ -90,12 +90,6 @@ class FmaTestTemplate : public LIBC_NAMESPACE::testing::FEnvSafeTest {
     // Test overflow.
     OutType z = out.max_normal;
     InType in_z = LIBC_NAMESPACE::fputil::cast<InType>(out.max_normal);
-#if defined(LIBC_TYPES_HAS_FLOAT16) && !defined(__LIBC_USE_FLOAT16_CONVERSION)
-    // Rounding modes other than the default might not be usable with float16.
-    if constexpr (LIBC_NAMESPACE::cpp::is_same_v<OutType, float16>)
-      EXPECT_FP_EQ(OutType(0.75) * z, func(InType(1.75), in_z, -in_z));
-    else
-#endif
       EXPECT_FP_EQ_ALL_ROUNDING(OutType(0.75) * z,
                                 func(InType(1.75), in_z, -in_z));