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//DISABLE_TEST:SIMPLE: -target hlsl -entry computeMain -stage compute
// This is a simplified version of the mul-crash.slang test, that shows the underlying issue is recursion.
// This test crashes when enabled, with a stack overrun. The crash happens when lowering into IR.
//
// It appears recursion in GLSL/HLSL is not allowed (at least with earlier shader models), but the compiler
// shouldn't crash. Moreover the Slang language can support recursion today on non GPU targets.
RWStructuredBuffer<int> outputBuffer;
int doRecursive(int a)
{
if (a > 0)
{
return doRecursive(a - 1) + 2;
}
return 10;
}
[numthreads(4, 1, 1)]
void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
{
uint tid = dispatchThreadID.x;
let val = doRecursive(tid);
outputBuffer[tid] = val;
}
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