Results for spec@arb_separate_shader_objects@400 combinations by location

Generating vertex shaders...
#version 140
#extension GL_ARB_separate_shader_objects: require
#extension GL_ARB_explicit_attrib_location: require

layout(location = 0) in vec4 piglit_vertex;
layout(location = 1) in vec3 vertex_color;

layout(location = 3) out vec3 a;

const vec4 offset = vec4(2, 0, 0, 0);

uniform mat4 transform;

void main()
{
    gl_Position = transform * (piglit_vertex + offset);
    a = vertex_color;
}

Generating fragment shaders...
#version 140
#extension GL_ARB_separate_shader_objects: require
#extension GL_ARB_explicit_attrib_location: enable

#if __VERSION__ >= 130
layout(location = 0) out vec4 out_color;
#else
#define out_color gl_FragColor
#endif

layout(location = 3) in vec3 b;

const vec3 color_offset = vec3(1, -3, 21);

void main()
{
    out_color = vec4(b + color_offset, 1.);
}

couldn't open libtxc_dxtn.so, software DXTn compression/decompression unavailable
ATTENTION: default value of option vblank_mode overridden by environment.
Mesa warning: couldn't open libtxc_dxtn.so, software DXTn compression/decompression unavailable

PIGLIT_PLATFORM="mixed_glx_egl" PIGLIT_SOURCE_DIR="/home/idr/devel/graphics/piglit"