diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp index 68c05a299f0..b8182de0be8 100644 --- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp +++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp @@ -4122,9 +4122,11 @@ glsl_to_tgsi_visitor::get_last_temp_read_first_temp_write(int *last_reads, int * last_reads[inst->src[j].index] = (depth == 0) ? i : -2; } for (j = 0; j < num_inst_dst_regs(inst); j++) { - if (inst->dst[j].file == PROGRAM_TEMPORARY) + if (inst->dst[j].file == PROGRAM_TEMPORARY) { if (first_writes[inst->dst[j].index] == -1) first_writes[inst->dst[j].index] = (depth == 0) ? i : loop_start; + last_reads[inst->dst[j].index] = (depth == 0) ? i : -2; + } } for (j = 0; j < inst->tex_offset_num_offset; j++) { if (inst->tex_offsets[j].file == PROGRAM_TEMPORARY) @@ -4642,6 +4644,7 @@ glsl_to_tgsi_visitor::merge_registers(void) /* Update the first_writes and last_reads arrays with the new * values for the merged register index, and mark the newly unused * register index as such. */ + assert(last_reads[j] >= last_reads[i]); last_reads[i] = last_reads[j]; first_writes[j] = -1; last_reads[j] = -1; |