Bug 108065 - Launching SteamVR results in nir_deref_instr_remove_if_unused assert
Summary: Launching SteamVR results in nir_deref_instr_remove_if_unused assert
Status: RESOLVED FIXED
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/Vulkan/radeon (show other bugs)
Version: git
Hardware: Other All
: medium normal
Assignee: mesa-dev
QA Contact: mesa-dev
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2018-09-25 21:31 UTC by Andres Rodriguez
Modified: 2018-10-03 14:42 UTC (History)
0 users

See Also:
i915 platform:
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Attachments

Description Andres Rodriguez 2018-09-25 21:31:27 UTC 
When launching SteamVR, the vrcompositor process hits the following assert:

vrcompositor: ../src/compiler/nir/nir_deref.c:95: nir_deref_instr_remove_if_unused: Assertion `d->dest.is_ssa' failed.

This regression started with the change:
864c78 "nir/opt_if: Re-materialize derefs in use blocks before peeling loops"

https://gitlab.freedesktop.org/mesa/mesa/commit/864c780566b8782c4fc69b4337db768223717bd8
Comment 1 Andres Rodriguez 2018-09-27 17:49:29 UTC 
Issue resolved by:
https://patchwork.freedesktop.org/series/50059/
Comment 2 Samuel Pitoiset 2018-10-03 14:42:19 UTC 
The series has been pushed, closing.

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