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location aliasing (#3438)

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* location aliasing
    when location aliasing, the aliases sharing the location must have the same underlying numerical type
    (floating-point or integer) and the same auxiliary storage and interpolation qualification.
    The following case, glslang need report error.

    layout(vertices = 1) out;

    layout (location = 1, component = 0)  in  double gohan[];
    layout (location = 1, component = 2)  in  float goten[];

    in  vec4 vs_tcs[];
    out vec4 tcs_tes[];

    void main()
    {
    }

* Need consider the following case: location aliasing with different interpolation qualifier.
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jimihem 2024-04-27 00:05:08 +08:00 • committed by GitHub
parent 9337143313
commit 44fcbccd06
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11 changed files with 114 additions and 13 deletions
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9
glslang/MachineIndependent/localintermediate.h
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@ -123,8 +123,10 @@ struct TRange {
// within the same location range, component range, and index value. Locations don't alias unless
// all other dimensions of their range overlap.
struct TIoRange {
TIoRange(TRange location, TRange component, TBasicType basicType, int index)
: location(location), component(component), basicType(basicType), index(index) { }
TIoRange(TRange location, TRange component, TBasicType basicType, int index, bool centroid, bool smooth, bool flat)
: location(location), component(component), basicType(basicType), index(index), centroid(centroid), smooth(smooth), flat(flat)
{
}
bool overlap(const TIoRange& rhs) const
{
return location.overlap(rhs.location) && component.overlap(rhs.component) && index == rhs.index;
@ -133,6 +135,9 @@ struct TIoRange {
TRange component;
TBasicType basicType;
int index;
bool centroid;
bool smooth;
bool flat;
};
// An offset range is a 2-D rectangle; the set of (binding, offset) pairs all lying