Created attachment 50593 [details]
glsl-max-varyings.png

mesa: 3bcb9a858f482c21bc7c4d0fcd3571e25ea95090 (master)

piglit glsl-max-varyings now fails on softpipe.

It passes on these branches.
mesa: 6c1a9a327d031cd46680f28de8636b9335847650 (7.11)
mesa: 7c3cf50d9988d721e79277180e29aaf6afa40be5 (7.10)
mesa: 5078cb68586a52e2a2a991c6e89ed42e8bac7d96 (7.9)


$ ./bin/glsl-max-varyings -auto
Vertical axis: Increasing numbers of varyings.
Horizontal axis: Which of the varyings contains the color.
GL_MAX_VARYING_FLOATS = 60
Probe at (38,38)
  Expected: 0.000000 1.000000 0.000000
  Observed: 1.000000 0.000000 0.000000
  Failure with 4 vec4 varyings used in varying index 3
Probe at (14,74)
  Expected: 0.000000 1.000000 0.000000
  Observed: 1.000000 0.000000 0.000000
  Failure with 7 vec4 varyings used in varying index 1
Probe at (38,86)
  Expected: 0.000000 1.000000 0.000000
  Observed: 1.000000 0.000000 0.000000
  Failure with 8 vec4 varyings used in varying index 3
Probe at (50,98)
  Expected: 0.000000 1.000000 0.000000
  Observed: 1.000000 0.000000 0.000000
  Failure with 9 vec4 varyings used in varying index 4
Probe at (38,110)
  Expected: 0.000000 1.000000 0.000000
  Observed: 1.000000 0.000000 0.000000
  Failure with 10 vec4 varyings used in varying index 3
Probe at (26,122)
  Expected: 0.000000 1.000000 0.000000
  Observed: 1.000000 0.000000 0.000000
  Failure with 11 vec4 varyings used in varying index 2
Probe at (50,170)
  Expected: 0.000000 1.000000 0.000000
  Observed: 1.000000 0.000000 0.000000
  Failure with 15 vec4 varyings used in varying index 4
PIGLIT: {'result': 'fail' }