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//TEST(compute):COMPARE_COMPUTE(filecheck-buffer=CHECK):-cpu -output-using-type
// CHECK: 123
// CHECK-NEXT: 4567
// CHECK-NEXT: 0
// CHECK-NEXT: 0
//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name=outputBuffer
RWStructuredBuffer<uint> outputBuffer;
struct S {
int foo : 8;
uint bar : 24;
};
// Generates the equivalent of this:
/*
struct S {
int _backing;
property foo : int
{
// int foo : 8;
get
{
let backingWidth = 32;
let fooWidth = 8;
let topOfFoo = 8;
// Shift left and then right to sign-extend foo properly
return (int(_backing) << (backingWidth-topOfFoo)) >> (backingWidth-fooWidth);
}
[mutating] set(int x)
{
let fooMask = 0x000000FF;
let bottomOfFoo = 0;
_backing = int((_backing & ~fooMask) | ((int(x) << bottomOfFoo) & fooMask));
}
}
// int bar : 24;
property bar : int
{
get
{
let backingWidth = 32;
let barWidth = 24;
let topOfBar = 32;
// Shift left and then right to sign-extend bar properly
return (uint(_backing) << (backingWidth-topOfBar)) >> (backingWidth-barWidth);
}
[mutating] set(int x)
{
let barMask = 0xFFFFFF00;
let bottomOfBar = 8;
_backing = int((_backing & ~barMask) | ((int(x) << bottomOfBar) & barMask));
}
}
};
*/
[numthreads(1, 1, 1)]
void computeMain()
{
S s;
s.foo = 123;
s.bar = 4567;
outputBuffer[0] = s.foo;
outputBuffer[1] = s.bar;
s.foo = 0;
s.bar = 0;
outputBuffer[2] = s.foo;
outputBuffer[3] = s.bar;
}
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