fb3defc9ef
Add [[clang::optnone]] attribute to spvF*() functions used for handling floating point operations decorated with DecorationNoContraction. Just using precise::fma() did not work. Adjust SPIRV-Cross unit test reference shaders to accommodate these changes.
93 lines
2.1 KiB
GLSL
93 lines
2.1 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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struct main0_out
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{
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float4 gl_Position [[position]];
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};
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struct main0_in
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{
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float4 vA [[attribute(0)]];
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float4 vB [[attribute(1)]];
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float4 vC [[attribute(2)]];
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};
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template<typename T>
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[[clang::optnone]] T spvFMul(T l, T r)
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{
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return fma(l, r, T(0));
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}
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template<typename T, int Cols, int Rows>
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[[clang::optnone]] vec<T, Cols> spvFMulVectorMatrix(vec<T, Rows> v, matrix<T, Cols, Rows> m)
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{
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vec<T, Cols> res = vec<T, Cols>(0);
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for (uint i = Rows; i > 0; --i)
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{
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vec<T, Cols> tmp(0);
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for (uint j = 0; j < Cols; ++j)
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{
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tmp[j] = m[j][i - 1];
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}
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res = fma(tmp, vec<T, Cols>(v[i - 1]), res);
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}
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return res;
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}
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template<typename T, int Cols, int Rows>
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[[clang::optnone]] vec<T, Rows> spvFMulMatrixVector(matrix<T, Cols, Rows> m, vec<T, Cols> v)
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{
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vec<T, Rows> res = vec<T, Rows>(0);
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for (uint i = Cols; i > 0; --i)
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{
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res = fma(m[i - 1], vec<T, Rows>(v[i - 1]), res);
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}
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return res;
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}
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template<typename T, int LCols, int LRows, int RCols, int RRows>
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[[clang::optnone]] matrix<T, RCols, LRows> spvFMulMatrixMatrix(matrix<T, LCols, LRows> l, matrix<T, RCols, RRows> r)
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{
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matrix<T, RCols, LRows> res;
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for (uint i = 0; i < RCols; i++)
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{
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vec<T, RCols> tmp(0);
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for (uint j = 0; j < LCols; j++)
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{
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tmp = fma(vec<T, RCols>(r[i][j]), l[j], tmp);
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}
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res[i] = tmp;
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}
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return res;
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}
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template<typename T>
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[[clang::optnone]] T spvFAdd(T l, T r)
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{
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return fma(T(1), l, r);
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}
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template<typename T>
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[[clang::optnone]] T spvFSub(T l, T r)
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{
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return fma(T(-1), r, l);
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}
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vertex main0_out main0(main0_in in [[stage_in]])
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{
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main0_out out = {};
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float4 mul = spvFMul(in.vA, in.vB);
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float4 add = spvFAdd(in.vA, in.vB);
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float4 sub = spvFSub(in.vA, in.vB);
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float4 mad = spvFAdd(spvFMul(in.vA, in.vB), in.vC);
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float4 summed = spvFAdd(spvFAdd(spvFAdd(mul, add), sub), mad);
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out.gl_Position = summed;
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return out;
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}
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