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implicit_conversion

`n` functions, each a cascade of cross-type conversions: scalar widening (int/uint -> float), splats, mixed initializer lists (per-element coercion), vector compose/truncate, and explicit narrowing. Stresses the coercion / conversion-cost engine in semantic checking rather than operator overloading.

bucket: typecheck  ·  compile mode: module  ·  flags: (none)  ·  default N: 600

Phase composition across releases

Full sub-counter decomposition of compileInner — named leaf timers plus (self) residuals (a parent's time not covered by a named child, e.g. the autodiff transform in linkAndOptimizeIR (self)). Topmost band traces compileInner; hover a band for its phase.

Compiled Slang source

exact compiled source (N = 600); long files show the first 40 lines, the area around computeMain (±40), and the last 40 lines (gaps elided)

implicit_conversion.slang

// AUTO-GENERATED by perf-suite/workloads.py — do not edit by hand.
RWStructuredBuffer<float> outBuf;

float conv_0()
{
    int i = 0; uint u = 0u; float f = 0.0;
    float a = i;
    float b = u;
    float2 v2 = f;
    float3 v3 = float3(i, u, f);
    float4 v4 = float4(v3, a);
    int2 iv = int2(v2);
    float3 w = v4.xyz;
    return a + b + v2.x + v3.y + v4.w + float(iv.x) + w.z;
}
float conv_1()
{
    int i = 1; uint u = 1u; float f = 1.0;
    float a = i;
    float b = u;
    float2 v2 = f;
    float3 v3 = float3(i, u, f);
    float4 v4 = float4(v3, a);
    int2 iv = int2(v2);
    float3 w = v4.xyz;
    return a + b + v2.x + v3.y + v4.w + float(iv.x) + w.z;
}
float conv_2()
{
    int i = 2; uint u = 2u; float f = 2.0;
    float a = i;
    float b = u;
    float2 v2 = f;
    float3 v3 = float3(i, u, f);
    float4 v4 = float4(v3, a);
    int2 iv = int2(v2);
    float3 w = v4.xyz;
    return a + b + v2.x + v3.y + v4.w + float(iv.x) + w.z;
}
float conv_3()

// … 7126 lines omitted …

}
float conv_597()
{
    int i = 2; uint u = 2u; float f = 3.0;
    float a = i;
    float b = u;
    float2 v2 = f;
    float3 v3 = float3(i, u, f);
    float4 v4 = float4(v3, a);
    int2 iv = int2(v2);
    float3 w = v4.xyz;
    return a + b + v2.x + v3.y + v4.w + float(iv.x) + w.z;
}
float conv_598()
{
    int i = 3; uint u = 3u; float f = 4.0;
    float a = i;
    float b = u;
    float2 v2 = f;
    float3 v3 = float3(i, u, f);
    float4 v4 = float4(v3, a);
    int2 iv = int2(v2);
    float3 w = v4.xyz;
    return a + b + v2.x + v3.y + v4.w + float(iv.x) + w.z;
}
float conv_599()
{
    int i = 4; uint u = 4u; float f = 5.0;
    float a = i;
    float b = u;
    float2 v2 = f;
    float3 v3 = float3(i, u, f);
    float4 v4 = float4(v3, a);
    int2 iv = int2(v2);
    float3 w = v4.xyz;
    return a + b + v2.x + v3.y + v4.w + float(iv.x) + w.z;
}

[shader("compute")]
[numthreads(1,1,1)]
void computeMain()
{
    float acc = 0.0;
    acc += conv_0();
    acc += conv_1();
    acc += conv_2();
    acc += conv_3();
    acc += conv_4();
    acc += conv_5();
    acc += conv_6();
    acc += conv_7();
    acc += conv_8();
    acc += conv_9();
    acc += conv_10();
    acc += conv_11();
    acc += conv_12();
    acc += conv_13();
    acc += conv_14();
    acc += conv_15();
    acc += conv_16();
    acc += conv_17();
    acc += conv_18();
    acc += conv_19();
    acc += conv_20();
    acc += conv_21();
    acc += conv_22();
    acc += conv_23();
    acc += conv_24();
    acc += conv_25();
    acc += conv_26();
    acc += conv_27();
    acc += conv_28();
    acc += conv_29();
    acc += conv_30();
    acc += conv_31();
    acc += conv_32();
    acc += conv_33();
    acc += conv_34();
    acc += conv_35();
    acc += conv_36();
    acc += conv_37();
    acc += conv_38();
    acc += conv_39();
    acc += conv_40();
    acc += conv_41();
    acc += conv_42();
    acc += conv_43();
    acc += conv_44();
    acc += conv_45();
    acc += conv_46();
    acc += conv_47();
    acc += conv_48();
    acc += conv_49();
    acc += conv_50();
    acc += conv_51();
    acc += conv_52();
    acc += conv_53();
    acc += conv_54();
    acc += conv_55();
    acc += conv_56();
    acc += conv_57();
    acc += conv_58();
    acc += conv_59();
    acc += conv_60();
    acc += conv_61();
    acc += conv_62();
    acc += conv_63();
    outBuf[0] = acc;
}