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dba720ff94
Test/hlsl.inf.vert tests parsing and some constant math on infinities, including (-1.#INF * 0.0). By IEEE 754 rules, that result is a NaN, but its sign is not significant. The test output assumes a negative-NaN is in the generated SPIR-V. However, the math library on some platforms (like macOS 14, a.k.a. Sonoma) will produce a positive NaN instead. This PR adjusts the test so it takes the absolute value of the NaN, to ensure we the emitted SPIR-V has the NaN with a 0 for it sign bit.
17 lines
560 B
GLSL
17 lines
560 B
GLSL
float4 main() : SV_Position
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{
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float f1 = -1.#INF;
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float f2 = 1.#INF;
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float f3 = +1.#INF;
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float f4 = f2 * 1.#INF + 1.#INF;
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const float f5 = -1.#INF;
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// An infinity times zero is a NaN.
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// In IEEE 754, the sign of a NaN is significant only for
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// abs, copy, negate, or copySign. Use abs(.) here to
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// set the sign bit to zero. Otherwise, some platforms will
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// have a 1 sign bit and others will have a 0 sign bit.
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const float f6 = abs(f5 * 0.0f);
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return (float4)(f1 + f2 + f3 + f4 + f5 + f6);
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}
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