https://bugs.freedesktop.org/show_bug.cgi?id=40213

Summary: src/mesa/state_tracker/st_glsl_to_tgsi.cpp:3176:copy_p ropagate: Assertion `inst->dst.file != PROGRAM_TEMPORARY || inst->dst.index < this->next_temp' failed. Product: Mesa Version: git Platform: x86 (IA32) OS/Version: Linux (All) Status: NEW Severity: critical Priority: medium Component: Drivers/Gallium/r300 AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: vlee@vmware.com

System environment: -- chipset: ATI RV530 -- system architecture: i686 -- libdrm-dev: 2.4.26-1ubuntu1 -- mesa: ccecc08f79afc020c8c0acface04a8e53e3a7c32 (master) -- kernel version: 3.0.0-8-generic -- Linux distribution: Ubuntu 11.10 i386

Run piglit glsl-vs-varying-array test.

$ ./bin/shader_runner -auto tests/shaders/glsl-vs-varying-array.shader_test r300: DRM version: 2.10.0, Name: ATI RV530, ID: 0x71c5, GB: 1, Z: 2 r300: GART size: 509 MB, VRAM size: 128 MB r300: AA compression RAM: YES, Z compression RAM: YES, HiZ RAM: YES src/mesa/state_tracker/st_glsl_to_tgsi.cpp:3176:copy_propagate: Assertion `inst->dst.file != PROGRAM_TEMPORARY || inst->dst.index < this->next_temp' failed.

(gdb) bt #0 0x011be647 in _debug_assert_fail ( expr=0x1c3ff34 "inst->dst.file != PROGRAM_TEMPORARY || inst->dst.index < this->next_temp", file=0x1c3f364 "src/mesa/state_tracker/st_glsl_to_tgsi.cpp", line=3176, function=0x1c40730 "copy_propagate") at src/gallium/auxiliary/util/u_debug.c:282 #1 0x01aa9749 in glsl_to_tgsi_visitor::copy_propagate (this=0x842f140) at src/mesa/state_tracker/st_glsl_to_tgsi.cpp:3175 #2 0x01aae803 in get_mesa_program (ctx=0x8285980, shader_program=0x8497068, shader=0x84b8088) at src/mesa/state_tracker/st_glsl_to_tgsi.cpp:4733 #3 0x01aaee49 in st_link_shader (ctx=0x8285980, prog=0x8497068) at src/mesa/state_tracker/st_glsl_to_tgsi.cpp:4891 #4 0x019bb101 in _mesa_glsl_link_shader (ctx=0x8285980, prog=0x8497068) at src/mesa/program/ir_to_mesa.cpp:3423 #5 0x0198307c in link_program (ctx=0x8285980, program=3) at src/mesa/main/shaderapi.c:877 #6 0x0198459c in _mesa_LinkProgramARB (programObj=3) at src/mesa/main/shaderapi.c:1461 #7 0x0806bea4 in link_and_use_shaders () #8 0x0806dfde in piglit_init () #9 0x0806ec71 in main () (gdb) frame 1 #1 0x01aa9749 in glsl_to_tgsi_visitor::copy_propagate (this=0x842f140) at src/mesa/state_tracker/st_glsl_to_tgsi.cpp:3175 3175 assert(inst->dst.file != PROGRAM_TEMPORARY (gdb) l 3170 int level = 0; 3171 3172 foreach_iter(exec_list_iterator, iter, this->instructions) { 3173 glsl_to_tgsi_instruction *inst = (glsl_to_tgsi_instruction *)iter.get(); 3174 3175 assert(inst->dst.file != PROGRAM_TEMPORARY 3176 || inst->dst.index < this->next_temp); 3177 3178 /* First, do any copy propagation possible into the src regs. */ 3179 for (int r = 0; r < 3; r++) { (gdb) print inst->dst.file $1 = PROGRAM_TEMPORARY (gdb) print inst->dst.index $2 = 3 (gdb) print this->next_temp $3 = 3