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vkd3d: Add a macro to mark unreachable code.

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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.
This commit is contained in:
Giovanni Mascellani
2022-08-31 13:25:24 +02:00
committed by Alexandre Julliard
parent 56b2f56b86
commit d5fd309ef8
Notes: Alexandre Julliard 2022-10-18 00:13:00 +02:00 
Approved-by: Zebediah Figura (@zfigura)
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/11
10 changed files with 52 additions and 71 deletions
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12
libs/vkd3d-shader/hlsl_constant_ops.c
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@@ -79,8 +79,7 @@ static bool fold_cast(struct hlsl_ctx *ctx, struct hlsl_ir_constant *dst, struct
break;
default:
assert(0);
return false;
vkd3d_unreachable();
}
switch (dst->node.data_type->base_type)
@@ -104,12 +103,8 @@ static bool fold_cast(struct hlsl_ctx *ctx, struct hlsl_ir_constant *dst, struct
case HLSL_TYPE_BOOL:
/* Casts to bool should have already been lowered. */
assert(0);
break;
default:
assert(0);
return false;
vkd3d_unreachable();
}
}
return true;
@@ -248,8 +243,7 @@ static bool fold_nequal(struct hlsl_ctx *ctx, struct hlsl_ir_constant *dst,
break;
default:
assert(0);
return false;
vkd3d_unreachable();
}
dst->value[k].u *= ~0u;