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glslang frontned behavior about scoping was wrong (GLES2.0 function body) #716

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johnkslang opened this issue Feb 4, 2017 · 0 comments
Open

glslang frontned behavior about scoping was wrong (GLES2.0 function body) #716

johnkslang opened this issue Feb 4, 2017 · 0 comments
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bug GLSL/ESSL

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@johnkslang
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From sawato shusaku:

int f(int k)
{
    {
        int k = k   3; // 2nd k is parameter, initializing nested first k
        int m = k      // use of new k, which is hiding the parameter
    }
}

it is leagal in GLES2.0 but is not in GLES3.0 and later

int f( /* nested scope begins here */ int k) 
{
    int k = k   3;  // redeclaration error of the name k
    ...
}

glslang frontend was wrong only GLES2.0 about this scoping problem.
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@johnkslang