mesa: 77d3d71f23b32550b045b5f74b7a5e6ca54d83c5 (master 17.3.0-devel)

$ ./bin/texdepth -auto
GL_ARB_shadow_ambient not supported.
Illegal sampler view creation without bind flag
Probe color at (80,16)
  Expected: 0.000000 0.000000 0.000000 1.000000
  Observed: 1.000000 1.000000 1.000000 1.000000
Test failed: 'EXT_shadow_func: GL_LESS'
See above for details.

PIGLIT: {"result": "fail" }


be3ab867bd444594f9d9e0f8e59d305d15769afd is the first bad commit
commit be3ab867bd444594f9d9e0f8e59d305d15769afd
Author: Marek Olšák <marek.olsak@amd.com>
Date:   Mon Oct 2 22:30:55 2017 +0200

    tgsi: implement tgsi_util_get_inst_usage_mask properly
    
    All opcodes are handled.
    
    Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

:040000 040000 d1db49cee47cbe6ea3ac52d46bbf4a612f14d3be 11c3d50751b4c921bec7cf463e8c52d4162af19e M	src
bisect run success