https://bugs.freedesktop.org/show_bug.cgi?id=49140
Bug #: 49140 Summary: r600_state_common.c:761:r600_draw_vbo: Assertion `0' failed Classification: Unclassified Product: Mesa Version: git Platform: All OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: Drivers/Gallium/r600 AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: bgz.marko@gmail.com
Created attachment 60568 --> https://bugs.freedesktop.org/attachment.cgi?id=60568 R600_DUMP_SHADERS
Hello,
I have an application using a rather complex shader with some branching - while/if. Applications fails with r600 driver giving the following error:
EE r600_shader.c:140 r600_pipe_shader_create - translation from TGSI failed ! r600_state_common.c:761:r600_draw_vbo: Assertion `0' failed.
It seems something goes wrong in the branching section, since it works if I comment it. The same shader works fine using either LIBGL_ALWAYS_SOFTWARE=1 or fglrx. Also, I can remember working it fine with some older revision of R600, unfortunately I don't know which one exactly.
I have attached R600_DUMP_SHADERS output. If needed I can also provide links to source code or any other data that may be helpful in debugging.
Some relevant parts of glxinfo:
OpenGL vendor string: X.Org OpenGL renderer string: Gallium 0.4 on AMD RV770 OpenGL version string: 2.1 Mesa 8.1-devel (git-1a33c1b precise-oibaf-ppa)
Best regards, Marko