ec054dad7f
Emit synthetic functions before function constants. Support use of spvQuantizeToF16() in function constants for numerical behavior consistency with the op code. Ensure subnormal results from OpQuantizeToF16 are flushed to zero per SPIR-V spec. Adjust SPIRV-Cross unit test reference shaders to accommodate these changes. Any MSL reference shader that inclues a synthetic function is affected, since the location it is emitted has changed.
53 lines
1.6 KiB
GLSL
53 lines
1.6 KiB
GLSL
#pragma clang diagnostic ignored "-Wmissing-prototypes"
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#include <metal_stdlib>
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#include <simd/simd.h>
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using namespace metal;
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template <typename F> struct SpvHalfTypeSelector;
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template <> struct SpvHalfTypeSelector<float> { public: using H = half; };
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template<uint N> struct SpvHalfTypeSelector<vec<float, N>> { using H = vec<half, N>; };
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template<typename F, typename H = typename SpvHalfTypeSelector<F>::H>
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[[clang::optnone]] F spvQuantizeToF16(F fval)
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{
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H hval = H(fval);
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hval = select(copysign(H(0), hval), hval, isnormal(hval) || isinf(hval) || isnan(hval));
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return F(hval);
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}
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constant int _7_tmp [[function_constant(201)]];
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constant int _7 = is_function_constant_defined(_7_tmp) ? _7_tmp : -10;
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constant int _20 = (_7 + 2);
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constant uint _8_tmp [[function_constant(202)]];
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constant uint _8 = is_function_constant_defined(_8_tmp) ? _8_tmp : 100u;
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constant uint _25 = (_8 % 5u);
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constant int _30 = _7 - (-3) * (_7 / (-3));
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constant int4 _32 = int4(20, 30, _20, _30);
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constant int2 _34 = int2(_32.y, _32.x);
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constant int _35 = _32.y;
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constant float _9_tmp [[function_constant(200)]];
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constant float _9 = is_function_constant_defined(_9_tmp) ? _9_tmp : 3.141590118408203125;
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constant float _41 = spvQuantizeToF16(_9);
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struct main0_out
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{
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int m_4 [[user(locn0)]];
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float4 gl_Position [[position]];
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};
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vertex main0_out main0()
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{
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main0_out out = {};
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float4 pos = float4(0.0);
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pos.y += float(_20);
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pos.z += float(_25);
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pos += float4(_32);
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float2 _59 = pos.xy + float2(_34);
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pos = float4(_59.x, _59.y, pos.z, pos.w);
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out.gl_Position = pos;
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out.m_4 = _35;
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return out;
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}
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