GL_AMD_gpu_shader_half_float is erroneously reported as required if half-float variables are used inside an #ifdef block which is removed at preprocessing time · Issue #1295 · KhronosGroup/glslang · GitHub
float16 support for Polaris/Baffin ? · Issue #94 · GPUOpen-Drivers/AMDVLK · GitHub
Vulkan doesn't support the internal usage of 16-bit floats. At all. · Issue #706 · KhronosGroup/Vulkan-Docs · GitHub
GLSL shaders using GL_AMD_gpu_shader_half_float should not generate "OpCapability Float16".. · Issue #1273 · KhronosGroup/glslang · GitHub
GLSL: Half types only check for AMD extension · Issue #660 · KhronosGroup/SPIRV-Cross · GitHub