This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Mali Offline compiler GLSL clamp performance on Mali-Gxx

Hi,

Been doing some analysis on some GLSL shader programs with the Mali Offline Compiler, great program btw.

It is however reporting that a clamp (vec3,float,float) is somehow slower for the Mali-Gxx than doing a seperate min/max according the offline compiler.

vec3 clamp_minmax (vec3 val, float minimum, float maximum){
return clamp(val, minimum, maximum);
}

vs

vec3 clamp_minmax (vec3 val, float minimum, float maximum){
vec3 rval = min(val, maximum);
return max (rval, minimum);
}

Note that the minimum is a constant 0.0f.

Is this expected and correct for a Mali-Gxx ?

Parents Reply Children