[PATCH v3 2/7] vkd3d-shader/hlsl: Return an hlsl_ir_node pointer from hlsl_new_cast() and hlsl_new_copy().

[Zebediah Figura]

From: Zebediah Figura

---
 libs/vkd3d-shader/hlsl.c         |  6 ++--
 libs/vkd3d-shader/hlsl.h         |  4 +--
 libs/vkd3d-shader/hlsl.y         | 29 ++++++++++----------
 libs/vkd3d-shader/hlsl_codegen.c | 47 +++++++++++++++-----------------
 4 files changed, 41 insertions(+), 45 deletions(-)

diff --git a/libs/vkd3d-shader/hlsl.c b/libs/vkd3d-shader/hlsl.c
index 2ec04ef4..412bc738 100644
--- a/libs/vkd3d-shader/hlsl.c
+++ b/libs/vkd3d-shader/hlsl.c
@@ -916,7 +916,7 @@ bool hlsl_scope_add_type(struct hlsl_scope *scope, struct hlsl_type *type)
     return true;
 }

-struct hlsl_ir_expr *hlsl_new_cast(struct hlsl_ctx *ctx, struct hlsl_ir_node *node, struct hlsl_type *type,
+struct hlsl_ir_node *hlsl_new_cast(struct hlsl_ctx *ctx, struct hlsl_ir_node *node, struct hlsl_type *type,
         const struct vkd3d_shader_location *loc)
 {
     struct hlsl_ir_node *cast;
@@ -924,10 +924,10 @@ struct hlsl_ir_expr *hlsl_new_cast(struct hlsl_ctx *ctx, struct hlsl_ir_node *no
     cast = hlsl_new_unary_expr(ctx, HLSL_OP1_CAST, node, *loc);
     if (cast)
         cast->data_type = type;
-    return hlsl_ir_expr(cast);
+    return cast;
 }

-struct hlsl_ir_expr *hlsl_new_copy(struct hlsl_ctx *ctx, struct hlsl_ir_node *node)
+struct hlsl_ir_node *hlsl_new_copy(struct hlsl_ctx *ctx, struct hlsl_ir_node *node)
 {
     /* Use a cast to the same type as a makeshift identity expression. */
     return hlsl_new_cast(ctx, node, node->data_type, &node->loc);
diff --git a/libs/vkd3d-shader/hlsl.h b/libs/vkd3d-shader/hlsl.h
index 68f27abc..ebccfd58 100644
--- a/libs/vkd3d-shader/hlsl.h
+++ b/libs/vkd3d-shader/hlsl.h
@@ -1053,11 +1053,11 @@ struct hlsl_buffer *hlsl_new_buffer(struct hlsl_ctx *ctx, enum hlsl_buffer_type
         const struct hlsl_reg_reservation *reservation, struct vkd3d_shader_location loc);
 struct hlsl_ir_node *hlsl_new_call(struct hlsl_ctx *ctx, struct hlsl_ir_function_decl *decl,
         const struct vkd3d_shader_location *loc);
-struct hlsl_ir_expr *hlsl_new_cast(struct hlsl_ctx *ctx, struct hlsl_ir_node *node, struct hlsl_type *type,
+struct hlsl_ir_node *hlsl_new_cast(struct hlsl_ctx *ctx, struct hlsl_ir_node *node, struct hlsl_type *type,
         const struct vkd3d_shader_location *loc);
 struct hlsl_ir_constant *hlsl_new_constant(struct hlsl_ctx *ctx, struct hlsl_type *type,
         const struct vkd3d_shader_location *loc);
-struct hlsl_ir_expr *hlsl_new_copy(struct hlsl_ctx *ctx, struct hlsl_ir_node *node);
+struct hlsl_ir_node *hlsl_new_copy(struct hlsl_ctx *ctx, struct hlsl_ir_node *node);
 struct hlsl_ir_node *hlsl_new_expr(struct hlsl_ctx *ctx, enum hlsl_ir_expr_op op,
         struct hlsl_ir_node *operands[HLSL_MAX_OPERANDS],
         struct hlsl_type *data_type, const struct vkd3d_shader_location *loc);
diff --git a/libs/vkd3d-shader/hlsl.y b/libs/vkd3d-shader/hlsl.y
index ad0a784c..261b28f5 100644
--- a/libs/vkd3d-shader/hlsl.y
+++ b/libs/vkd3d-shader/hlsl.y
@@ -280,7 +280,7 @@ static struct hlsl_ir_node *add_cast(struct hlsl_ctx *ctx, struct list *instrs,
         struct hlsl_ir_node *node, struct hlsl_type *dst_type, const struct vkd3d_shader_location *loc)
 {
     struct hlsl_type *src_type = node->data_type;
-    struct hlsl_ir_expr *cast;
+    struct hlsl_ir_node *cast;

if (hlsl_types_are_equal(src_type, dst_type))
         return node;
@@ -338,9 +338,9 @@ static struct hlsl_ir_node *add_cast(struct hlsl_ctx *ctx, struct list *instrs,

if (!(cast = hlsl_new_cast(ctx, &load->node, dst_comp_type, loc)))
                 return NULL;
-            list_add_tail(instrs, &cast->node.entry);
+            list_add_tail(instrs, &cast->entry);

-            if (!(store = hlsl_new_store_component(ctx, &block, &var_deref, dst_idx, &cast->node)))
+            if (!(store = hlsl_new_store_component(ctx, &block, &var_deref, dst_idx, cast)))
                 return NULL;
             list_move_tail(instrs, &block.instrs);
         }
@@ -355,8 +355,8 @@ static struct hlsl_ir_node *add_cast(struct hlsl_ctx *ctx, struct list *instrs,
     {
         if (!(cast = hlsl_new_cast(ctx, node, dst_type, loc)))
             return NULL;
-        list_add_tail(instrs, &cast->node.entry);
-        return &cast->node;
+        list_add_tail(instrs, &cast->entry);
+        return cast;
     }
 }

@@ -705,8 +705,7 @@ static bool add_array_access(struct hlsl_ctx *ctx, struct list *instrs, struct h
         struct hlsl_ir_node *index, const struct vkd3d_shader_location *loc)
 {
     const struct hlsl_type *expr_type = array->data_type, *index_type = index->data_type;
-    struct hlsl_ir_node *return_index;
-    struct hlsl_ir_expr *cast;
+    struct hlsl_ir_node *return_index, *cast;

if (expr_type->class == HLSL_CLASS_OBJECT
             && (expr_type->base_type == HLSL_TYPE_TEXTURE || expr_type->base_type == HLSL_TYPE_UAV)
@@ -752,8 +751,8 @@ static bool add_array_access(struct hlsl_ctx *ctx, struct list *instrs, struct h

if (!(cast = hlsl_new_cast(ctx, index, hlsl_get_scalar_type(ctx, HLSL_TYPE_UINT), &index->loc)))
         return false;
-    list_add_tail(instrs, &cast->node.entry);
-    index = &cast->node;
+    list_add_tail(instrs, &cast->entry);
+    index = cast;

if (expr_type->class != HLSL_CLASS_ARRAY && expr_type->class != HLSL_CLASS_VECTOR && expr_type->class != HLSL_CLASS_MATRIX)
     {
@@ -1670,7 +1669,7 @@ static struct hlsl_ir_node *add_assignment(struct hlsl_ctx *ctx, struct list *in
         enum parse_assign_op assign_op, struct hlsl_ir_node *rhs)
 {
     struct hlsl_type *lhs_type = lhs->data_type;
-    struct hlsl_ir_expr *copy;
+    struct hlsl_ir_node *copy;
     unsigned int writemask = 0;

if (assign_op == ASSIGN_OP_SUB)
@@ -1829,8 +1828,8 @@ static struct hlsl_ir_node *add_assignment(struct hlsl_ctx *ctx, struct list *in
      * the last instruction in the list, we do need to copy. */
     if (!(copy = hlsl_new_copy(ctx, rhs)))
         return NULL;
-    list_add_tail(instrs, &copy->node.entry);
-    return &copy->node;
+    list_add_tail(instrs, &copy->entry);
+    return copy;
 }

static bool add_increment(struct hlsl_ctx *ctx, struct list *instrs, bool decrement, bool post,
@@ -1852,14 +1851,14 @@ static bool add_increment(struct hlsl_ctx *ctx, struct list *instrs, bool decrem

if (post)
     {
-        struct hlsl_ir_expr *copy;
+        struct hlsl_ir_node *copy;

if (!(copy = hlsl_new_copy(ctx, lhs)))
             return false;
-        list_add_tail(instrs, &copy->node.entry);
+        list_add_tail(instrs, &copy->entry);

/* Post increment/decrement expressions are considered const. */
-        if (!(copy->node.data_type = hlsl_type_clone(ctx, copy->node.data_type, 0, HLSL_MODIFIER_CONST)))
+        if (!(copy->data_type = hlsl_type_clone(ctx, copy->data_type, 0, HLSL_MODIFIER_CONST)))
             return false;
     }

diff --git a/libs/vkd3d-shader/hlsl_codegen.c b/libs/vkd3d-shader/hlsl_codegen.c
index eebc69a3..1d628047 100644
--- a/libs/vkd3d-shader/hlsl_codegen.c
+++ b/libs/vkd3d-shader/hlsl_codegen.c
@@ -823,23 +823,22 @@ static bool lower_broadcasts(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, v

if (src_type->class <= HLSL_CLASS_VECTOR && dst_type->class <= HLSL_CLASS_VECTOR && src_type->dimx == 1)
     {
-        struct hlsl_ir_node *replacement;
+        struct hlsl_ir_node *replacement, *new_cast;
         struct hlsl_ir_swizzle *swizzle;
-        struct hlsl_ir_expr *new_cast;

dst_scalar_type = hlsl_get_scalar_type(ctx, dst_type->base_type);
         /* We need to preserve the cast since it might be doing more than just
          * turning the scalar into a vector. */
         if (!(new_cast = hlsl_new_cast(ctx, cast->operands[0].node, dst_scalar_type, &cast->node.loc)))
             return false;
-        list_add_after(&cast->node.entry, &new_cast->node.entry);
-        replacement = &new_cast->node;
+        list_add_after(&cast->node.entry, &new_cast->entry);
+        replacement = new_cast;

if (dst_type->dimx != 1)
         {
             if (!(swizzle = hlsl_new_swizzle(ctx, HLSL_SWIZZLE(X, X, X, X), dst_type->dimx, replacement, &cast->node.loc)))
                 return false;
-            list_add_after(&new_cast->node.entry, &swizzle->node.entry);
+            list_add_after(&new_cast->entry, &swizzle->node.entry);
             replacement = &swizzle->node;
         }

@@ -1727,17 +1726,17 @@ static bool lower_narrowing_casts(struct hlsl_ctx *ctx, struct hlsl_ir_node *ins
     if (src_type->class <= HLSL_CLASS_VECTOR && dst_type->class <= HLSL_CLASS_VECTOR && dst_type->dimx < src_type->dimx)
     {
         struct hlsl_ir_swizzle *swizzle;
-        struct hlsl_ir_expr *new_cast;
+        struct hlsl_ir_node *new_cast;

dst_vector_type = hlsl_get_vector_type(ctx, dst_type->base_type, src_type->dimx);
         /* We need to preserve the cast since it might be doing more than just
          * narrowing the vector. */
         if (!(new_cast = hlsl_new_cast(ctx, cast->operands[0].node, dst_vector_type, &cast->node.loc)))
             return false;
-        list_add_after(&cast->node.entry, &new_cast->node.entry);
-        if (!(swizzle = hlsl_new_swizzle(ctx, HLSL_SWIZZLE(X, Y, Z, W), dst_type->dimx, &new_cast->node, &cast->node.loc)))
+        list_add_after(&cast->node.entry, &new_cast->entry);
+        if (!(swizzle = hlsl_new_swizzle(ctx, HLSL_SWIZZLE(X, Y, Z, W), dst_type->dimx, new_cast, &cast->node.loc)))
             return false;
-        list_add_after(&new_cast->node.entry, &swizzle->node.entry);
+        list_add_after(&new_cast->entry, &swizzle->node.entry);

hlsl_replace_node(&cast->node, &swizzle->node);
         return true;
@@ -2033,9 +2032,8 @@ struct hlsl_ir_load *hlsl_add_conditional(struct hlsl_ctx *ctx, struct list *ins

static bool lower_int_division(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, void *context)
 {
-    struct hlsl_ir_node *arg1, *arg2, *xor, *and, *abs1, *abs2, *div, *neg;
+    struct hlsl_ir_node *arg1, *arg2, *xor, *and, *abs1, *abs2, *div, *neg, *cast1, *cast2, *cast3;
     struct hlsl_type *type = instr->data_type, *utype;
-    struct hlsl_ir_expr *cast1, *cast2, *cast3;
     struct hlsl_ir_constant *high_bit;
     struct hlsl_ir_expr *expr;
     struct hlsl_ir_load *cond;
@@ -2074,7 +2072,7 @@ static bool lower_int_division(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr,

if (!(cast1 = hlsl_new_cast(ctx, abs1, utype, &instr->loc)))
         return false;
-    list_add_before(&instr->entry, &cast1->node.entry);
+    list_add_before(&instr->entry, &cast1->entry);

if (!(abs2 = hlsl_new_unary_expr(ctx, HLSL_OP1_ABS, arg2, instr->loc)))
         return false;
@@ -2082,21 +2080,21 @@ static bool lower_int_division(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr,

if (!(cast2 = hlsl_new_cast(ctx, abs2, utype, &instr->loc)))
         return false;
-    list_add_before(&instr->entry, &cast2->node.entry);
+    list_add_before(&instr->entry, &cast2->entry);

-    if (!(div = hlsl_new_binary_expr(ctx, HLSL_OP2_DIV, &cast1->node, &cast2->node)))
+    if (!(div = hlsl_new_binary_expr(ctx, HLSL_OP2_DIV, cast1, cast2)))
         return false;
     list_add_before(&instr->entry, &div->entry);

if (!(cast3 = hlsl_new_cast(ctx, div, type, &instr->loc)))
         return false;
-    list_add_before(&instr->entry, &cast3->node.entry);
+    list_add_before(&instr->entry, &cast3->entry);

-    if (!(neg = hlsl_new_unary_expr(ctx, HLSL_OP1_NEG, &cast3->node, instr->loc)))
+    if (!(neg = hlsl_new_unary_expr(ctx, HLSL_OP1_NEG, cast3, instr->loc)))
         return false;
     list_add_before(&instr->entry, &neg->entry);

-    if (!(cond = hlsl_add_conditional(ctx, &instr->entry, and, neg, &cast3->node)))
+    if (!(cond = hlsl_add_conditional(ctx, &instr->entry, and, neg, cast3)))
         return false;
     hlsl_replace_node(instr, &cond->node);

@@ -2105,9 +2103,8 @@ static bool lower_int_division(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr,

static bool lower_int_modulus(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, void *context)
 {
-    struct hlsl_ir_node *arg1, *arg2, *and, *abs1, *abs2, *div, *neg;
+    struct hlsl_ir_node *arg1, *arg2, *and, *abs1, *abs2, *div, *neg, *cast1, *cast2, *cast3;
     struct hlsl_type *type = instr->data_type, *utype;
-    struct hlsl_ir_expr *cast1, *cast2, *cast3;
     struct hlsl_ir_constant *high_bit;
     struct hlsl_ir_expr *expr;
     struct hlsl_ir_load *cond;
@@ -2142,7 +2139,7 @@ static bool lower_int_modulus(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr,

if (!(cast1 = hlsl_new_cast(ctx, abs1, utype, &instr->loc)))
         return false;
-    list_add_before(&instr->entry, &cast1->node.entry);
+    list_add_before(&instr->entry, &cast1->entry);

if (!(abs2 = hlsl_new_unary_expr(ctx, HLSL_OP1_ABS, arg2, instr->loc)))
         return false;
@@ -2150,21 +2147,21 @@ static bool lower_int_modulus(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr,

if (!(cast2 = hlsl_new_cast(ctx, abs2, utype, &instr->loc)))
         return false;
-    list_add_before(&instr->entry, &cast2->node.entry);
+    list_add_before(&instr->entry, &cast2->entry);

-    if (!(div = hlsl_new_binary_expr(ctx, HLSL_OP2_MOD, &cast1->node, &cast2->node)))
+    if (!(div = hlsl_new_binary_expr(ctx, HLSL_OP2_MOD, cast1, cast2)))
         return false;
     list_add_before(&instr->entry, &div->entry);

if (!(cast3 = hlsl_new_cast(ctx, div, type, &instr->loc)))
         return false;
-    list_add_before(&instr->entry, &cast3->node.entry);
+    list_add_before(&instr->entry, &cast3->entry);

-    if (!(neg = hlsl_new_unary_expr(ctx, HLSL_OP1_NEG, &cast3->node, instr->loc)))
+    if (!(neg = hlsl_new_unary_expr(ctx, HLSL_OP1_NEG, cast3, instr->loc)))
         return false;
     list_add_before(&instr->entry, &neg->entry);

-    if (!(cond = hlsl_add_conditional(ctx, &instr->entry, and, neg, &cast3->node)))
+    if (!(cond = hlsl_add_conditional(ctx, &instr->entry, and, neg, cast3)))
         return false;
     hlsl_replace_node(instr, &cond->node);