[Bug 101985] [IVB BYT] piglit.spec.arb_gpu_shader_fp64.varying-packing.simple double* regression

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101985

            Bug ID: 101985
           Summary: [IVB BYT]
                    piglit.spec.arb_gpu_shader_fp64.varying-packing.simple
                    double* regression
           Product: Mesa
           Version: 17.2
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/i965
          Assignee: t_arceri at yahoo.com.au
          Reporter: mark.a.janes at intel.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org
                CC: kenneth at whitecape.org
            Blocks: 101911

Bisected to:
ad55b1a7701ad51234af3b9fc30f4c54d2546b86
Author:     Timothy Arceri <timothy.arceri at collabora.com>

i965: remove GLSL IR optimisation loop

IVB is running into some spilling issues in piglit with the
loop removed. However those tests are not really reflective
of a real world use case, also fp64 is brand new to IVB
so we leave the spilling issues to be resolved at a later
time.

Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

piglit.spec.arb_gpu_shader_fp64.varying-packing.simple double separate
Standard Output

/tmp/build_root/m32/lib/piglit/bin/varying-packing-simple double separate -auto
-fbo
piglit: debug: Requested an OpenGL 3.2 Core Context, and received a matching
4.2 context

Probe color at (0,0)
  Expected: 0 255 0 255
  Observed: 0 0 0 0

Standard Error

Mesa 17.2.0-rc1 implementation error: Failed to compile vertex shader: VS
compile failed: no register to spill



Please report at https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa
Failed to link: VS compile failed: no register to spill


Mesa: User error: GL_INVALID_VALUE in glGetUniformLocation
Mesa: User error: GL_INVALID_OPERATION in glUniform(program not linked)


Referenced Bugs:

https://bugs.freedesktop.org/show_bug.cgi?id=101911
[Bug 101911] [TRACKER] Mesa 17.2 release tracker
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