Bug 110311 - [IVB HSW SNB][regression][bisected] regressions on vec4 deqp/gl{es}cts tests
Summary: [IVB HSW SNB][regression][bisected] regressions on vec4 deqp/gl{es}cts tests
Status: RESOLVED FIXED
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/DRI/i965 (show other bugs)
Version: git
Hardware: Other All
: medium normal
Assignee: Timothy Arceri
QA Contact: Intel 3D Bugs Mailing List
URL:
Whiteboard:
Keywords: bisected, regression
Depends on:
Blocks:
 
Reported: 2019-04-03 00:25 UTC by Clayton Craft
Modified: 2019-04-03 02:25 UTC (History)
0 users

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Attachments

Description Clayton Craft 2019-04-03 00:25:17 UTC 
The following tests regressed on SNB, IVB, and HSW:

KHR-GL46.shaders.loops.do_while_constant_iterations.mixed_break_continue_vertex
KHR-GLES3.shaders.loops.do_while_constant_iterations.mixed_break_continue_vertex
dEQP-GLES3.functional.shaders.loops.do_while_constant_iterations.mixed_break_continue_vertex

This has been bisected to this commit:

commit 4218b6422cf1ff70c7f0feeec699a35e88522ed7
Author: Timothy Arceri <tarceri@itsqueeze.com>
Date:   Fri Nov 23 11:49:19 2018 +1100

    nir: propagate known constant values into the if-then branch
Comment 1 Timothy Arceri 2019-04-03 02:25:47 UTC 
I've reverted this for now. The fix is going to be more complex than I first thought.

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