Mesa (master): glsl_to_tgsi: add fallthrough comments

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Module: Mesa
Branch: master
Commit: e89d34aacab069c2074241ea0104705c18c9d67a
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=e89d34aacab069c2074241ea0104705c18c9d67a

Author: Marcin Ślusarz <marcin.slusarz at intel.com>
Date:   Wed May 20 21:29:15 2020 +0200

glsl_to_tgsi: add fallthrough comments

All those cases are supposed to hit an assert in ir_binop_bit_or case.

Signed-off-by: Marcin Ślusarz <marcin.slusarz at intel.com>
Reviewed-by: Tapani Pälli <tapani.palli at intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5133>

---

 src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index 8eb0dda9fae..390e91deebd 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -1938,11 +1938,13 @@ glsl_to_tgsi_visitor::visit_expression(ir_expression* ir, st_src_reg *op)
          emit_asm(ir, TGSI_OPCODE_NOT, result_dst, op[0]);
          break;
       }
+      /* fallthrough */
    case ir_unop_u2f:
       if (native_integers) {
          emit_asm(ir, TGSI_OPCODE_U2F, result_dst, op[0]);
          break;
       }
+      /* fallthrough */
    case ir_binop_lshift:
    case ir_binop_rshift:
       if (native_integers) {
@@ -1964,16 +1966,19 @@ glsl_to_tgsi_visitor::visit_expression(ir_expression* ir, st_src_reg *op)
          emit_asm(ir, opcode, result_dst, op[0], count);
          break;
       }
+      /* fallthrough */
    case ir_binop_bit_and:
       if (native_integers) {
          emit_asm(ir, TGSI_OPCODE_AND, result_dst, op[0], op[1]);
          break;
       }
+      /* fallthrough */
    case ir_binop_bit_xor:
       if (native_integers) {
          emit_asm(ir, TGSI_OPCODE_XOR, result_dst, op[0], op[1]);
          break;
       }
+      /* fallthrough */
    case ir_binop_bit_or:
       if (native_integers) {
          emit_asm(ir, TGSI_OPCODE_OR, result_dst, op[0], op[1]);