Bug 65448

Summary:	Driver fails to compile complex shaders
Product:	Mesa	Reporter:	Grigori Goronzy <greg>
Component:	Drivers/Gallium/r600	Assignee:	Default DRI bug account <dri-devel>
Status:	RESOLVED MOVED	QA Contact:
Severity:	normal
Priority:	medium
Version:	git
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Grigori Goronzy 2013-06-06 09:29:13 UTC

The r600 driver fails to translate TGSI to bytecode for complex shaders.

https://www.shadertoy.com/view/MdX3Rr is an example for this. The fragment shader compiles into a pretty big TGSI program (about 6500 instructions). r600 takes a long time (tens of seconds) trying to transform it into bytecode, but in then end it fails:

EE ../../../../../mesa/src/gallium/drivers/r600/r600_shader.c:158 r600_pipe_shader_create - translation from TGSI failed !
EE ../../../../../mesa/src/gallium/drivers/r600/r600_state_common.c:753 r600_shader_select - Failed to build shader variant (type=1) -1

This happens with many of the shaders from shadertoy.com.

Comment 1 GitLab Migration User 2019-09-18 19:03:14 UTC

-- GitLab Migration Automatic Message --

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

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/441.

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