make numerical limits constexpr

src/include/migraphx/migraphx_float8.hpp

@@ -474,34 +474,40 @@ template <>
 class NumericLimits<migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::fp8>>
 {
     public:
-    static MIGRAPHX_HIP_HOST_DEVICE migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::fp8> epsilon()
+    static constexpr MIGRAPHX_HIP_HOST_DEVICE migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::fp8>
+    epsilon()
     {
         return static_cast<migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::fp8>>(float(0.0625));
     }
 
-    static MIGRAPHX_HIP_HOST_DEVICE migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::fp8> quiet_NaN()
+    static constexpr MIGRAPHX_HIP_HOST_DEVICE migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::fp8>
+    quiet_NaN()
     {
         return migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::fp8>(
             MIGRAPHX_FP8_FNUZ ? 0x80 : 0x7F, migraphx_fp8::hip_f8<>::from_bits());
     }
 
-    static MIGRAPHX_HIP_HOST_DEVICE migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::fp8> max()
+    static constexpr MIGRAPHX_HIP_HOST_DEVICE migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::fp8>
+    max()
     {
         return migraphx_fp8::F8_Max<migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::fp8>>();
     }
 
-    static MIGRAPHX_HIP_HOST_DEVICE migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::fp8> min()
+    static constexpr MIGRAPHX_HIP_HOST_DEVICE migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::fp8>
+    min()
     {
         return static_cast<migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::fp8>>(-1.0f) *
                migraphx_fp8::F8_Max<migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::fp8>>();
     }
 
-    static MIGRAPHX_HIP_HOST_DEVICE migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::fp8> lowest()
+    static constexpr MIGRAPHX_HIP_HOST_DEVICE migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::fp8>
+    lowest()
     {
         return migraphx_fp8::F8_Lowest<migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::fp8>>();
     }
 
-    static MIGRAPHX_HIP_HOST_DEVICE migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::fp8> infinity()
+    static constexpr MIGRAPHX_HIP_HOST_DEVICE migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::fp8>
+    infinity()
     {
         return migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::fp8>(
             MIGRAPHX_FP8_FNUZ ? 0x80 : 0x7F, migraphx_fp8::hip_f8<>::from_bits());
@@ -512,35 +518,41 @@ template <>
 class NumericLimits<migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::bf8>>
 {
     public:
-    static MIGRAPHX_HIP_HOST_DEVICE migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::bf8> epsilon()
+    static constexpr MIGRAPHX_HIP_HOST_DEVICE migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::bf8>
+    epsilon()
     {
         return static_cast<migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::bf8>>(float(0.125));
     }
 
-    static MIGRAPHX_HIP_HOST_DEVICE migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::bf8> quiet_NaN()
+    static constexpr MIGRAPHX_HIP_HOST_DEVICE migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::bf8>
+    quiet_NaN()
     {
         return migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::bf8>(
             MIGRAPHX_FP8_FNUZ ? 0x80 : 0x7d,
             migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::bf8>::from_bits());
     }
 
-    static MIGRAPHX_HIP_HOST_DEVICE migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::bf8> max()
+    static constexpr MIGRAPHX_HIP_HOST_DEVICE migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::bf8>
+    max()
     {
         return static_cast<migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::bf8>>(
             migraphx_fp8::F8_Max<migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::bf8>>());
     }
-    static MIGRAPHX_HIP_HOST_DEVICE migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::bf8> min()
+    static constexpr MIGRAPHX_HIP_HOST_DEVICE migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::bf8>
+    min()
     {
         return static_cast<migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::bf8>>(float(-1.0f)) *
                migraphx_fp8::F8_Max<migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::bf8>>();
     }
 
-    static MIGRAPHX_HIP_HOST_DEVICE migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::bf8> lowest()
+    static constexpr MIGRAPHX_HIP_HOST_DEVICE migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::bf8>
+    lowest()
     {
         return migraphx_fp8::F8_Lowest<migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::bf8>>();
     }
 
-    static MIGRAPHX_HIP_HOST_DEVICE migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::bf8> infinity()
+    static constexpr MIGRAPHX_HIP_HOST_DEVICE migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::bf8>
+    infinity()
     {
         return migraphx_fp8::hip_f8<migraphx_fp8::hip_f8_type::bf8>(
             MIGRAPHX_FP8_FNUZ ? 0x80 : 0x7c,

test/float8.cpp

@@ -167,9 +167,7 @@ TEST_CASE(test_nan_1)
 TEST_CASE(test_nan_2)
 {
     auto fnan = std::numeric_limits<migraphx_fp8::fp8e4m3fnuz>::quiet_NaN();
-    std::cout << uint32_t(fnan.data) << std::endl;
     migraphx_fp8::fp8e4m3fnuz fp8_nan(fnan.data, migraphx_fp8::fp8e4m3fnuz::from_bits());
-    std::cout << uint32_t(fp8_nan.data) << std::endl;
     EXPECT(fp8_nan.is_nan());
     EXPECT(std::isnan(fp8_nan));
     EXPECT(std::isnan(float(fp8_nan)));