================
@@ -53,46 +55,93 @@ static_assert(APFloatBase::integerPartWidth % 4 == 0, "Part
width must be divisi
namespace llvm {
-constexpr fltSemantics APFloatBase::semIEEEhalf = {15, -14, 11, 16};
-constexpr fltSemantics APFloatBase::semBFloat = {127, -126, 8, 16};
-constexpr fltSemantics APFloatBase::semIEEEsingle = {127, -126, 24, 32};
-constexpr fltSemantics APFloatBase::semIEEEdouble = {1023, -1022, 53, 64};
-constexpr fltSemantics APFloatBase::semIEEEquad = {16383, -16382, 113, 128};
-constexpr fltSemantics APFloatBase::semFloat8E5M2 = {15, -14, 3, 8};
+constexpr fltSemantics APFloatBase::semIEEEhalf = {"IEEEhalf", 15, -14, 11,
16};
+constexpr fltSemantics APFloatBase::semBFloat = {"BFloat", 127, -126, 8, 16};
+constexpr fltSemantics APFloatBase::semIEEEsingle = {"IEEESingle", 127, -126,
+ 24, 32};
+constexpr fltSemantics APFloatBase::semIEEEdouble = {"IEEEdouble", 1023, -1022,
+ 53, 64};
+constexpr fltSemantics APFloatBase::semIEEEquad = {"IEEEquad", 16383, -16382,
+ 113, 128};
+constexpr fltSemantics APFloatBase::semFloat8E5M2 = {"Float8E5M2", 15, -14, 3,
+ 8};
constexpr fltSemantics APFloatBase::semFloat8E5M2FNUZ = {
- 15, -15, 3, 8, fltNonfiniteBehavior::NanOnly,
fltNanEncoding::NegativeZero};
-constexpr fltSemantics APFloatBase::semFloat8E4M3 = {7, -6, 4, 8};
+ "Float8E5M2FNUZ",
+ 15,
+ -15,
+ 3,
+ 8,
+ 2,
+ fltNonfiniteBehavior::NanOnly,
+ fltNanEncoding::NegativeZero};
+constexpr fltSemantics APFloatBase::semFloat8E4M3 = {"Float8E4M3", 7, -6, 4,
8};
constexpr fltSemantics APFloatBase::semFloat8E4M3FN = {
- 8, -6, 4, 8, fltNonfiniteBehavior::NanOnly, fltNanEncoding::AllOnes};
+ "Float8E4M3FN", 8, -6, 4, 8, 2, fltNonfiniteBehavior::NanOnly,
+ fltNanEncoding::AllOnes};
constexpr fltSemantics APFloatBase::semFloat8E4M3FNUZ = {
- 7, -7, 4, 8, fltNonfiniteBehavior::NanOnly, fltNanEncoding::NegativeZero};
+ "Float8E4M3FNUZ",
+ 7,
+ -7,
+ 4,
+ 8,
+ 2,
+ fltNonfiniteBehavior::NanOnly,
+ fltNanEncoding::NegativeZero};
constexpr fltSemantics APFloatBase::semFloat8E4M3B11FNUZ = {
- 4, -10, 4, 8, fltNonfiniteBehavior::NanOnly, fltNanEncoding::NegativeZero};
-constexpr fltSemantics APFloatBase::semFloat8E3M4 = {3, -2, 5, 8};
-constexpr fltSemantics APFloatBase::semFloatTF32 = {127, -126, 11, 19};
+ "Float8E4M3B11FNUZ", 4, -10, 4, 8, 2,
fltNonfiniteBehavior::NanOnly,
+ fltNanEncoding::NegativeZero};
+constexpr fltSemantics APFloatBase::semFloat8E3M4 = {"Float8E3M4", 3, -2, 5,
8};
+constexpr fltSemantics APFloatBase::semFloatTF32 = {"FloatTF32", 127, -126, 11,
+ 19};
constexpr fltSemantics APFloatBase::semFloat8E8M0FNU = {
+ "Float8E8M0FNU",
127,
-127,
1,
8,
+ 2,
fltNonfiniteBehavior::NanOnly,
fltNanEncoding::AllOnes,
false,
false,
false};
constexpr fltSemantics APFloatBase::semFloat6E3M2FN = {
- 4, -2, 3, 6, fltNonfiniteBehavior::FiniteOnly};
+ "Float6E3M2FN", 4, -2, 3, 6, 2, fltNonfiniteBehavior::FiniteOnly};
constexpr fltSemantics APFloatBase::semFloat6E2M3FN = {
- 2, 0, 4, 6, fltNonfiniteBehavior::FiniteOnly};
+ "Float6E2M3FN", 2, 0, 4, 6, 2, fltNonfiniteBehavior::FiniteOnly};
constexpr fltSemantics APFloatBase::semFloat4E2M1FN = {
- 2, 0, 2, 4, fltNonfiniteBehavior::FiniteOnly};
-constexpr fltSemantics APFloatBase::semX87DoubleExtended = {16383, -16382, 64,
- 80};
-constexpr fltSemantics APFloatBase::semBogus = {0, 0, 0, 0};
-constexpr fltSemantics APFloatBase::semPPCDoubleDouble = {-1, 0, 0, 128};
+ "Float4E2M1FN", 2, 0, 2, 4, 2, fltNonfiniteBehavior::FiniteOnly};
+constexpr fltSemantics APFloatBase::semX87DoubleExtended = {
+ "X87DoubleExtended", 16383, -16382, 64, 80};
+constexpr fltSemantics APFloatBase::semBogus = {"Bogus", 0, 0, 0, 0};
+constexpr fltSemantics APFloatBase::semPPCDoubleDouble = {"PPCDoubleDouble",
-1,
+ 0, 0, 128};
constexpr fltSemantics APFloatBase::semPPCDoubleDoubleLegacy = {
- 1023, -1022 + 53, 53 + 53, 128};
+ "PPCDoubleDoubleLegacy", 1023, -1022 + 53, 53 + 53, 128};
+
+/* Hex float
+ All three sizes share the same sign and exponent fields
+ 1 bit for sign
+ 7 bits for unsigned CHARACTERISTIC, which is the exponent + a bias of 64.
----------------
shafik wrote:
why is `CHARACTERISTIC` capitalized? Same question for `SIGNIFICAND`
https://github.com/llvm/llvm-project/pull/179771
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