st/mesa: make sure to create a "clean" bool when doing i2b

i2b has to work for all integers, not just 1. INEG would not necessarily
result with all bits set, which is something that other operations can
rely on by e.g. using AND (or INEG for b2i).

Signed-off-by: Ilia Mirkin <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>
Reviewed-by: Roland Scheidegger <[email protected]>
Cc: [email protected]

1 files changed, 1 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 1fea8600a75..f0f2a77d065 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -1953,7 +1953,7 @@ glsl_to_tgsi_visitor::visit(ir_expression *ir)
       break;
    case ir_unop_i2b:
       if (native_integers)
-         emit(ir, TGSI_OPCODE_INEG, result_dst, op[0]);
+         emit(ir, TGSI_OPCODE_USNE, result_dst, op[0], st_src_reg_for_int(0));
       else
          emit(ir, TGSI_OPCODE_SNE, result_dst, op[0], st_src_reg_for_float(0.0));
       break;