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c2e224c5fb
While so far it has been posible to do this at parse time, this must happen after knowing if the complex cast is on the lhs or not. The modified tests show that before this patch we are currently miscompiling when this happens, because a complex lhs cast is transformed into a load, and add_assigment() just stores to the generated "cast" temp.
196 lines
2.8 KiB
Plaintext
196 lines
2.8 KiB
Plaintext
% Test implicit and explicit casts on function output parameters.
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[pixel shader todo]
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uniform float4 f;
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void func(out float4 o)
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{
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o = f;
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}
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float4 main() : sv_target
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{
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int4 x;
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func(x);
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return x;
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}
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[test]
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uniform 0 float4 -1.9 -1.0 2.9 4.0
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todo(sm<6) draw quad
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probe (0, 0) rgba (-1.0, -1.0, 2.0, 4.0)
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% As above, but cast "x" to float4 first.
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% In SM 6 a cast seems to implicitly promote the type to const,
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% so it fails to match the parameter of func().
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[pixel shader todo fail(sm>=6)]
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uniform float4 f;
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void func(out float4 o)
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{
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o = f;
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}
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float4 main() : sv_target
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{
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int4 x;
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func((float4)x);
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return x;
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}
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[test]
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uniform 0 float4 -1.9 -1.0 2.9 4.0
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todo draw quad
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probe (0, 0) rgba (-1.0, -1.0, 2.0, 4.0)
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% As above, but declare "x" as float4 and cast it to int4.
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[pixel shader todo fail(sm>=6)]
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uniform float4 f;
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void func(out float4 o)
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{
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o = f;
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}
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float4 main() : sv_target
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{
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float4 x;
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func((int4)x);
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return x;
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}
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[test]
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uniform 0 float4 -1.9 -1.0 2.9 4.0
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todo draw quad
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probe (0, 0) rgba (-1.0, -1.0, 2.0, 4.0)
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[pixel shader todo]
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uniform int4 i;
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void func(inout float4 a)
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{
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a += 0.1;
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}
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float4 main() : sv_target
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{
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int4 x = i;
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func(x);
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return x;
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}
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[test]
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if(sm<4) uniform 0 float4 -2 0 1 -3000000
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if(sm>=4) uniform 0 int4 -2 0 1 -3000000
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todo(sm<6) draw quad
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probe (0, 0) rgba (-1.0, 0.0, 1.0, -3000000.0) 4
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% An explicit cast gets applied right before assignment, as if it was on the lhs.
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[pixel shader todo fail(sm>=6)]
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void fun(out float4 f)
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{
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f = float4(1.4, 2.6, 3.9, 4.3);
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}
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float4 main() : sv_target
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{
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float4 p;
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fun((int4) p);
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return p;
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}
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[test]
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todo draw quad
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probe (0, 0) rgba(1, 2, 3, 4)
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[pixel shader todo fail]
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void fun(out float2 f)
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{
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f = float2(1, 2);
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}
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float4 main() : sv_target
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{
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float4 p = {-1, -2, -3, -4};
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fun(p);
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return p;
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}
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[pixel shader todo fail]
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void fun(out float f)
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{
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f = 1;
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}
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float4 main() : sv_target
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{
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float4 p = {-1, -2, -3, -4};
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fun(p);
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return p;
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}
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% However, partial assigments can happen if there are explicit casts, as if
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% they were on the lhs of an assigment.
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[pixel shader todo]
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void fun(out float2 f)
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{
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f = float2(1, 2);
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}
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float4 main() : sv_target
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{
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float4 p = {-1, -2, -3, -4};
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fun((float2) p); // partial assigment to p.xy.
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return p;
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}
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[test]
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todo(sm<6) draw quad
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probe (0, 0) rgba(1, 2, -3, -4)
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[pixel shader fail]
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void fun(out float4 f)
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{
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f = float4(1, 2, 3, 4);
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}
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float4 main() : sv_target
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{
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float4 p = 0;
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fun((float2)p);
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return p;
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}
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[pixel shader fail(sm>=4) todo]
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void fun(out float4 f)
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{
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f = float4(1.1, 2.3, 3.6, 4.3);
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}
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float4 main() : sv_target
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{
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float4 p = 0;
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fun((float2x2)(int4)(float4)(half4)p);
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return p;
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}
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[test]
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todo draw quad
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probe (0, 0) rgba(1.1, 2.3, 3.6, 4.3)
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