8373682: Test compiler/loopopts/superword/TestReinterpretAndCast.java fails on x86_64 with AVX but without f16c

Reviewed-by: kvn, jsikstro, chagedorn

Author: eme64

test/hotspot/jtreg/compiler/loopopts/superword/TestReinterpretAndCast.java

@@ -162,7 +162,7 @@ public static Object[] setup2() {
                   IRNode.STORE_VECTOR,       "> 0",
                   IRNode.VECTOR_REINTERPRET, "> 0"}, // We have at least I2F
         applyIfPlatform = {"64-bit", "true"},
-        applyIfCPUFeature = {"avx", "true"})
+        applyIfCPUFeatureAnd = {"avx", "true", "f16c", "true"})
     @IR(counts = {IRNode.LOAD_VECTOR_I,    IRNode.VECTOR_SIZE + "min(max_int, max_float, max_short)", "> 0",
                   IRNode.VECTOR_CAST_F2HF, IRNode.VECTOR_SIZE + "min(max_int, max_float, max_short)", "> 0",
                   IRNode.STORE_VECTOR,       "> 0",
@@ -208,7 +208,7 @@ public static Object[] setup3() {
                   IRNode.STORE_VECTOR,       "> 0",
                   IRNode.VECTOR_REINTERPRET, "> 0"}, // We have at least F2I
         applyIfPlatform = {"64-bit", "true"},
-        applyIfCPUFeature = {"avx", "true"})
+        applyIfCPUFeatureAnd = {"avx", "true", "f16c", "true"})
     @IR(counts = {IRNode.LOAD_VECTOR_S,    IRNode.VECTOR_SIZE + "min(max_float, max_short, max_long)", "> 0",
                   IRNode.VECTOR_CAST_HF2F, IRNode.VECTOR_SIZE + "min(max_float, max_short, max_long)", "> 0",
                   IRNode.VECTOR_CAST_I2L,  IRNode.VECTOR_SIZE + "min(max_float, max_short, max_long)", "> 0",