Bug 101985

Summary: [IVB BYT] piglit.spec.arb_gpu_shader_fp64.varying-packing.simple double* regression
Product: Mesa Reporter: Mark Janes <mark.a.janes>
Component: Drivers/DRI/i965Assignee: Samuel Iglesias Gonsálvez <siglesias>
Status: RESOLVED MOVED QA Contact: Intel 3D Bugs Mailing List <intel-3d-bugs>
Severity: normal    
Priority: medium CC: kenneth, t_arceri
Version: 17.2   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:

Description Mark Janes 2017-07-31 15:57:52 UTC 
Bisected to:
ad55b1a7701ad51234af3b9fc30f4c54d2546b86
Author:     Timothy Arceri <timothy.arceri@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@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)
Comment 1 Timothy Arceri 2017-08-01 07:24:19 UTC 
Samuel has an unreviewed series here (I haven't tested if this makes the test pass):

https://patchwork.freedesktop.org/series/27579/
Comment 2 Mark Janes 2017-08-12 00:51:29 UTC 
Samuel's series fixes the tests referenced by this bug.
Comment 3 Mark Janes 2017-08-19 05:26:40 UTC 
Curro has suggested that this issue should not block the 17.2 release
Comment 4 GitLab Migration User 2019-09-25 19:03:33 UTC 
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

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