[PATCH 1/1] vkd3d-shader/hlsl: Fold redudant casts again after lower narrowing casts.

[Francisco Casas]

From: Francisco Casas

lower_narrowing_casts() currently creates a new cast calling
hlsl_new_cast(). This cast may be redudant, but it is not folded, which
is making SM1 emit an unnecessary fixme in some shaders:

Aborting due to not yet implemented feature: SM1 "cast" expression.

Other passes that call hlsl_new_cast() are lower_int_division() and
lower_int_modulus(), so the new fold_redudant_casts() pass is called
after these as well.
---
 libs/vkd3d-shader/hlsl_codegen.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libs/vkd3d-shader/hlsl_codegen.c b/libs/vkd3d-shader/hlsl_codegen.c
index 2b6c595a..7cafc84b 100644
--- a/libs/vkd3d-shader/hlsl_codegen.c
+++ b/libs/vkd3d-shader/hlsl_codegen.c
@@ -3929,6 +3929,7 @@ int hlsl_emit_bytecode(struct hlsl_ctx *ctx, struct hlsl_ir_function_decl *entry
     hlsl_transform_ir(ctx, lower_int_modulus, body, NULL);
     hlsl_transform_ir(ctx, lower_int_abs, body, NULL);
     hlsl_transform_ir(ctx, lower_float_modulus, body, NULL);
+    hlsl_transform_ir(ctx, fold_redundant_casts, body, NULL);
     do
     {
         progress = hlsl_transform_ir(ctx, hlsl_fold_constant_exprs, body, NULL);