diff options
| -rw-r--r-- | src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp index dd9c84f1abf..62e4101d164 100644 --- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp +++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp @@ -3091,8 +3091,18 @@ glsl_to_tgsi_visitor::visit(ir_discard *ir) { if (ir->condition) { ir->condition->accept(this); - this->result.negate = ~this->result.negate; - emit(ir, TGSI_OPCODE_KILL_IF, undef_dst, this->result); + st_src_reg condition = this->result; + + /* Convert the bool condition to a float so we can negate. */ + if (native_integers) { + st_src_reg temp = get_temp(ir->condition->type); + emit(ir, TGSI_OPCODE_AND, st_dst_reg(temp), + condition, st_src_reg_for_float(1.0)); + condition = temp; + } + + condition.negate = ~condition.negate; + emit(ir, TGSI_OPCODE_KILL_IF, undef_dst, condition); } else { /* unconditional kil */ emit(ir, TGSI_OPCODE_KILL); |