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Avoid some bit_cast in bfloat16 test plan #747

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Jul 10, 2023
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Avoid some bit_cast in bfloat16 test plan #747

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10 changes: 2 additions & 8 deletions test_plans/bfloat16.asciidoc
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Original file line number Diff line number Diff line change
Expand Up @@ -78,25 +78,19 @@ Use `uint*_t` variables representing `bfloat16` and `float` values in bitset for
[source, c++]
----
uint16_t bfloat16_bits = 0b0000000010000000;
uint32_t float_bits = 0b00000000100000000000000000000000;

bfloat16 bf_min = sycl::bit_cast<bfloat16>(bfloat16_bits);
float float_min = sycl::bit_cast<float>(float_bits);
----

Verify that the minimum values of `bfloat16` type is equal to the minimum value of `float` by using the `bfloat16` operator `==`.
Verify that `bf_min == std::numeric_limits<float>::min()`.

==== Zero

[source, c++]
----
uint16_t bfloat16_bits = 0b0000000000000000;
uint32_t float_bits = 0b00000000000000000000000000000000;

bfloat16 bf_zero = sycl::bit_cast<bfloat16>(bfloat16_bits);
float float_zero = sycl::bit_cast<float>(float_bits);
----
Verify that `bf_zero == float_zero`.
Verify that `bf_zero == 0.f`.

==== NaN

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