https://bugs.freedesktop.org/show_bug.cgi?id=101666
--- Comment #1 from Ilia Mirkin <imir...@alum.mit.edu> ---
Despite the code looking just fine, I can repro this with a shader_test:
[require]
GL ES >= 3.0
GLSL ES >= 3.00
[vertex shader]
#version 300 es
uint bitfieldExtract(uint val, int off, int size) {
uint mask = uint((1 << size) - 1);
return uint(val >> off) & mask;
}
void main() {
gl_Position = vec4(bitfieldExtract(1u, 2, 3));
}
[fragment shader]
#version 300 es
out vec4 color;
void main() { color = vec4(0,1,0,1); }
[test]
link success
results in
Failed to compile VS: 0:3(6): error: A shader cannot redefine or overload
built-in function `bitfieldExtract' in GLSL ES 3.00
0:9(21): error: no matching function for call to `bitfieldExtract(uint, int,
int)'; candidates are:
0:9(16): error: cannot construct `vec4' from a non-numeric data type
Will require some code reading, because the builtin_functions.cpp signature
seems fine. It must not be getting validated at the right times...
[And to avoid any confusion, this was on SNB, so ES 3.1 wasn't even an option.]
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