| Priority | medium |
|---|---|
| Bug ID | 65448 |
| Assignee | dri-devel@lists.freedesktop.org |
| Summary | Driver fails to compile complex shaders |
| Severity | normal |
| Classification | Unclassified |
| OS | Linux (All) |
| Reporter | greg@chown.ath.cx |
| Hardware | x86-64 (AMD64) |
| Status | NEW |
| Version | git |
| Component | Drivers/Gallium/r600 |
| Product | Mesa |
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.
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