Giovanni Mascellani : vkd3d: Add a macro to mark unreachable code.

[Alexandre Julliard]

Module: vkd3d
Branch: master
Commit: d5fd309ef8b3ed10a0f862a1acb1e6c1681a7ca1
URL:    https://gitlab.winehq.org/wine/vkd3d/-/commit/d5fd309ef8b3ed10a0f862a1acb1e6...

Author: Giovanni Mascellani <gmascellani(a)codeweavers.com>
Date:   Wed Aug 31 13:25:24 2022 +0200

vkd3d: Add a macro to mark unreachable code.

This should silence warnings about some branches non returning any value
without requiring additional "return 0" statement or similar.

Also, in theory this might enable to compiler to optimize the program
a little bit more, though that's unlikely to have any measurable effect.

---

 include/private/vkd3d_common.h        | 14 ++++++++++++
 libs/vkd3d-shader/hlsl.c              | 14 +++++-------
 libs/vkd3d-shader/hlsl.h              |  3 +--
 libs/vkd3d-shader/hlsl.y              | 12 +++++-----
 libs/vkd3d-shader/hlsl_codegen.c      |  9 +++-----
 libs/vkd3d-shader/hlsl_constant_ops.c | 12 +++-------
 libs/vkd3d-shader/hlsl_sm1.c          |  9 ++++----
 libs/vkd3d-shader/hlsl_sm4.c          | 42 ++++++++++++-----------------------
 libs/vkd3d-shader/vkd3d_shader_main.c |  2 +-
 tests/shader_runner_d3d9.c            |  6 ++---
 10 files changed, 52 insertions(+), 71 deletions(-)