'mix' : ambiguous function signature match

[Yurii Miroshnyk]

Generated code mix(0,10,.5) gives an error while shader compilation:
'mix' : ambiguous function signature match: multiple signatures match under implicit type conversion

[Laurent Le Brun]

Do you have a simple repro?

What might happen is that you define a variable like float m=10 and it got inlined. The workaround is to declare it as float m=10.; so that it remains a float value after inlining.

[Yurii Miroshnyk]

Here is this piece of code:

float value_q = 0;
float expr_m = mix(value_q, 10, 0.5);

and apparently after inlining value_q the function call becomes ambiguous.
Thank you for a clue. I don't think it is a bug. Rather expected behavior.