X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fcompiler%2Fspirv%2Fvtn_private.h;h=0d73c61e21993322b8279eb2e06834c26742a1dd;hb=fa5a36dbd474fb3c755da51553c6ca18dab76a06;hp=8efa91930158892231e52c58b22e679524af4487;hpb=d74b1f4809936c63546901eace440709acb5691f;p=mesa.git

diff --git a/src/compiler/spirv/vtn_private.h b/src/compiler/spirv/vtn_private.h
index 8efa9193015..0d73c61e219 100644
--- a/src/compiler/spirv/vtn_private.h
+++ b/src/compiler/spirv/vtn_private.h
@@ -51,6 +51,10 @@ void _vtn_warn(struct vtn_builder *b, const char *file, unsigned line,
                const char *fmt, ...) PRINTFLIKE(4, 5);
 #define vtn_warn(...) _vtn_warn(b, __FILE__, __LINE__, __VA_ARGS__)
 
+void _vtn_err(struct vtn_builder *b, const char *file, unsigned line,
+               const char *fmt, ...) PRINTFLIKE(4, 5);
+#define vtn_err(...) _vtn_err(b, __FILE__, __LINE__, __VA_ARGS__)
+
 /** Fail SPIR-V parsing
  *
  * This function logs an error and then bails out of the shader compile using
@@ -71,8 +75,10 @@ void _vtn_warn(struct vtn_builder *b, const char *file, unsigned line,
  * So long as these two things continue to hold, we can easily longjmp back to
  * spirv_to_nir(), clean up the builder, and return NULL.
  */
-void _vtn_fail(struct vtn_builder *b, const char *file, unsigned line,
-               const char *fmt, ...) NORETURN PRINTFLIKE(4, 5);
+NORETURN void
+_vtn_fail(struct vtn_builder *b, const char *file, unsigned line,
+             const char *fmt, ...) PRINTFLIKE(4, 5);
+
 #define vtn_fail(...) _vtn_fail(b, __FILE__, __LINE__, __VA_ARGS__)
 
 /** Fail if the given expression evaluates to true */
@@ -82,6 +88,12 @@ void _vtn_fail(struct vtn_builder *b, const char *file, unsigned line,
          vtn_fail(__VA_ARGS__); \
    } while (0)
 
+#define _vtn_fail_with(t, msg, v) \
+   vtn_fail("%s: %s (%u)\n", msg, spirv_ ## t ## _to_string(v), v)
+
+#define vtn_fail_with_decoration(msg, v) _vtn_fail_with(decoration, msg, v)
+#define vtn_fail_with_opcode(msg, v)     _vtn_fail_with(op, msg, v)
+
 /** Assert that a condition is true and, if it isn't, vtn_fail
  *
  * This macro is transitional only and should not be used in new code.  Use
@@ -111,10 +123,12 @@ enum vtn_value_type {
 
 enum vtn_branch_type {
    vtn_branch_type_none,
+   vtn_branch_type_if_merge,
    vtn_branch_type_switch_break,
    vtn_branch_type_switch_fallthrough,
    vtn_branch_type_loop_break,
    vtn_branch_type_loop_continue,
+   vtn_branch_type_loop_back_edge,
    vtn_branch_type_discard,
    vtn_branch_type_return,
 };
@@ -123,11 +137,14 @@ enum vtn_cf_node_type {
    vtn_cf_node_type_block,
    vtn_cf_node_type_if,
    vtn_cf_node_type_loop,
+   vtn_cf_node_type_case,
    vtn_cf_node_type_switch,
+   vtn_cf_node_type_function,
 };
 
 struct vtn_cf_node {
    struct list_head link;
+   struct vtn_cf_node *parent;
    enum vtn_cf_node_type type;
 };
 
@@ -142,6 +159,10 @@ struct vtn_loop {
     */
    struct list_head cont_body;
 
+   struct vtn_block *header_block;
+   struct vtn_block *cont_block;
+   struct vtn_block *break_block;
+
    SpvLoopControlMask control;
 };
 
@@ -156,17 +177,17 @@ struct vtn_if {
    enum vtn_branch_type else_type;
    struct list_head else_body;
 
+   struct vtn_block *merge_block;
+
    SpvSelectionControlMask control;
 };
 
 struct vtn_case {
-   struct list_head link;
+   struct vtn_cf_node node;
 
+   enum vtn_branch_type type;
    struct list_head body;
 
-   /* The block that starts this case */
-   struct vtn_block *start_block;
-
    /* The fallthrough case, if any */
    struct vtn_case *fallthrough;
 
@@ -186,6 +207,8 @@ struct vtn_switch {
    uint32_t selector;
 
    struct list_head cases;
+
+   struct vtn_block *break_block;
 };
 
 struct vtn_block {
@@ -202,6 +225,14 @@ struct vtn_block {
 
    enum vtn_branch_type branch_type;
 
+   /* The CF node for which this is a merge target
+    *
+    * The SPIR-V spec requires that any given block can be the merge target
+    * for at most one merge instruction.  If this block is a merge target,
+    * this points back to the block containing that merge instruction.
+    */
+   struct vtn_cf_node *merge_cf_node;
+
    /** Points to the loop that this block starts (if it starts a loop) */
    struct vtn_loop *loop;
 
@@ -213,7 +244,9 @@ struct vtn_block {
 };
 
 struct vtn_function {
-   struct exec_node node;
+   struct vtn_cf_node node;
+
+   struct vtn_type *type;
 
    bool referenced;
    bool emitted;
@@ -228,13 +261,33 @@ struct vtn_function {
    SpvFunctionControlMask control;
 };
 
-typedef bool (*vtn_instruction_handler)(struct vtn_builder *, uint32_t,
+#define VTN_DECL_CF_NODE_CAST(_type)               \
+static inline struct vtn_##_type *                 \
+vtn_cf_node_as_##_type(struct vtn_cf_node *node)   \
+{                                                  \
+   assert(node->type == vtn_cf_node_type_##_type); \
+   return (struct vtn_##_type *)node;              \
+}
+
+VTN_DECL_CF_NODE_CAST(block)
+VTN_DECL_CF_NODE_CAST(loop)
+VTN_DECL_CF_NODE_CAST(if)
+VTN_DECL_CF_NODE_CAST(case)
+VTN_DECL_CF_NODE_CAST(switch)
+VTN_DECL_CF_NODE_CAST(function)
+
+#define vtn_foreach_cf_node(node, cf_list) \
+   list_for_each_entry(struct vtn_cf_node, node, cf_list, link)
+
+typedef bool (*vtn_instruction_handler)(struct vtn_builder *, SpvOp,
                                         const uint32_t *, unsigned);
 
 void vtn_build_cfg(struct vtn_builder *b, const uint32_t *words,
                    const uint32_t *end);
 void vtn_function_emit(struct vtn_builder *b, struct vtn_function *func,
                        vtn_instruction_handler instruction_handler);
+void vtn_handle_function_call(struct vtn_builder *b, SpvOp opcode,
+                              const uint32_t *w, unsigned count);
 
 const uint32_t *
 vtn_foreach_instruction(struct vtn_builder *b, const uint32_t *start,
@@ -253,6 +306,9 @@ struct vtn_ssa_value {
    struct vtn_ssa_value *transposed;
 
    const struct glsl_type *type;
+
+   /* Access qualifiers */
+   enum gl_access_qualifier access;
 };
 
 enum vtn_base_type {
@@ -265,6 +321,7 @@ enum vtn_base_type {
    vtn_base_type_pointer,
    vtn_base_type_image,
    vtn_base_type_sampler,
+   vtn_base_type_sampled_image,
    vtn_base_type_function,
 };
 
@@ -273,15 +330,21 @@ struct vtn_type {
 
    const struct glsl_type *type;
 
-   /* The value that declares this type.  Used for finding decorations */
-   struct vtn_value *val;
+   /* The SPIR-V id of the given type. */
+   uint32_t id;
 
-   /* Specifies the length of complex types. */
+   /* Specifies the length of complex types.
+    *
+    * For Workgroup pointers, this is the size of the referenced type.
+    */
    unsigned length;
 
    /* for arrays, matrices and pointers, the array stride */
    unsigned stride;
 
+   /* Access qualifiers */
+   enum gl_access_qualifier access;
+
    union {
       /* Members for scalar, vector, and array-like types */
       struct {
@@ -318,6 +381,13 @@ struct vtn_type {
           * (i.e. a block that contains only builtins).
           */
          bool builtin_block:1;
+
+         /* for structs and unions it specifies the minimum alignment of the
+          * members. 0 means packed.
+          *
+          * Set by CPacked and Alignment Decorations in kernels.
+          */
+         bool packed:1;
       };
 
       /* Members for pointer types */
@@ -327,6 +397,9 @@ struct vtn_type {
 
          /* Storage class for pointers */
          SpvStorageClass storage_class;
+
+         /* Required alignment for pointers */
+         uint32_t align;
       };
 
       /* Members for image types */
@@ -341,6 +414,12 @@ struct vtn_type {
          SpvAccessQualifier access_qualifier;
       };
 
+      /* Members for sampled image types */
+      struct {
+         /* For sampled images, the image type */
+         struct vtn_type *image;
+      };
+
       /* Members for function types */
       struct {
          /* For functions, the vtn_type for each parameter */
@@ -352,6 +431,13 @@ struct vtn_type {
    };
 };
 
+bool vtn_type_contains_block(struct vtn_builder *b, struct vtn_type *type);
+
+bool vtn_types_compatible(struct vtn_builder *b,
+                          struct vtn_type *t1, struct vtn_type *t2);
+
+struct vtn_type *vtn_type_without_array(struct vtn_type *type);
+
 struct vtn_variable;
 
 enum vtn_access_mode {
@@ -361,7 +447,7 @@ enum vtn_access_mode {
 
 struct vtn_access_link {
    enum vtn_access_mode mode;
-   uint32_t id;
+   int64_t id;
 };
 
 struct vtn_access_chain {
@@ -372,6 +458,9 @@ struct vtn_access_chain {
     */
    bool ptr_as_array;
 
+   /* Access qualifiers */
+   enum gl_access_qualifier access;
+
    /** Struct elements and array offsets.
     *
     * This is an array of 1 so that it can conveniently be created on the
@@ -381,17 +470,18 @@ struct vtn_access_chain {
 };
 
 enum vtn_variable_mode {
-   vtn_variable_mode_local,
-   vtn_variable_mode_global,
-   vtn_variable_mode_param,
+   vtn_variable_mode_function,
+   vtn_variable_mode_private,
+   vtn_variable_mode_uniform,
    vtn_variable_mode_ubo,
    vtn_variable_mode_ssbo,
+   vtn_variable_mode_phys_ssbo,
    vtn_variable_mode_push_constant,
-   vtn_variable_mode_image,
-   vtn_variable_mode_sampler,
    vtn_variable_mode_workgroup,
+   vtn_variable_mode_cross_workgroup,
    vtn_variable_mode_input,
    vtn_variable_mode_output,
+   vtn_variable_mode_image,
 };
 
 struct vtn_pointer {
@@ -412,29 +502,31 @@ struct vtn_pointer {
    /** The referenced variable, if known
     *
     * This field may be NULL if the pointer uses a (block_index, offset) pair
-    * instead of an access chain.
+    * instead of an access chain or if the access chain starts at a deref.
     */
    struct vtn_variable *var;
 
-   /** An access chain describing how to get from var to the referenced data
-    *
-    * This field may be NULL if the pointer references the entire variable or
-    * if a (block_index, offset) pair is used instead of an access chain.
-    */
-   struct vtn_access_chain *chain;
+   /** The NIR deref corresponding to this pointer */
+   nir_deref_instr *deref;
 
    /** A (block_index, offset) pair representing a UBO or SSBO position. */
    struct nir_ssa_def *block_index;
    struct nir_ssa_def *offset;
+
+   /* Access qualifiers */
+   enum gl_access_qualifier access;
 };
 
-static inline bool
-vtn_pointer_uses_ssa_offset(struct vtn_pointer *ptr)
+bool vtn_mode_uses_ssa_offset(struct vtn_builder *b,
+                              enum vtn_variable_mode mode);
+
+static inline bool vtn_pointer_uses_ssa_offset(struct vtn_builder *b,
+                                               struct vtn_pointer *ptr)
 {
-   return ptr->mode == vtn_variable_mode_ubo ||
-          ptr->mode == vtn_variable_mode_ssbo;
+   return vtn_mode_uses_ssa_offset(b, ptr->mode);
 }
 
+
 struct vtn_variable {
    enum vtn_variable_mode mode;
 
@@ -442,11 +534,20 @@ struct vtn_variable {
 
    unsigned descriptor_set;
    unsigned binding;
+   bool explicit_binding;
+   unsigned offset;
    unsigned input_attachment_index;
    bool patch;
 
    nir_variable *var;
-   nir_variable **members;
+
+   /* If the variable is a struct with a location set on it then this will be
+    * stored here. This will be used to calculate locations for members that
+    * don’t have their own explicit location.
+    */
+   int base_location;
+
+   int shared_location;
 
    /**
     * In some early released versions of GLSLang, it implemented all function
@@ -461,16 +562,19 @@ struct vtn_variable {
     * hack at some point in the future.
     */
    struct vtn_pointer *copy_prop_sampler;
+
+   /* Access qualifiers. */
+   enum gl_access_qualifier access;
 };
 
 struct vtn_image_pointer {
    struct vtn_pointer *image;
    nir_ssa_def *coord;
    nir_ssa_def *sample;
+   nir_ssa_def *lod;
 };
 
 struct vtn_sampled_image {
-   struct vtn_type *type;
    struct vtn_pointer *image; /* Image or array of images */
    struct vtn_pointer *sampler; /* Sampler */
 };
@@ -479,14 +583,11 @@ struct vtn_value {
    enum vtn_value_type value_type;
    const char *name;
    struct vtn_decoration *decoration;
+   struct vtn_type *type;
    union {
       void *ptr;
       char *str;
-      struct vtn_type *type;
-      struct {
-         nir_constant *constant;
-         const struct glsl_type *const_type;
-      };
+      nir_constant *constant;
       struct vtn_pointer *pointer;
       struct vtn_image_pointer *image;
       struct vtn_sampled_image *sampled_image;
@@ -510,7 +611,7 @@ struct vtn_decoration {
     */
    int scope;
 
-   const uint32_t *literals;
+   const uint32_t *operands;
    struct vtn_value *group;
 
    union {
@@ -526,9 +627,10 @@ struct vtn_builder {
    jmp_buf fail_jump;
 
    const uint32_t *spirv;
+   size_t spirv_word_count;
 
    nir_shader *shader;
-   const struct spirv_to_nir_options *options;
+   struct spirv_to_nir_options *options;
    struct vtn_block *block;
 
    /* Current offset, file, line, and column.  Useful for debugging.  Set
@@ -558,19 +660,31 @@ struct vtn_builder {
    unsigned value_id_bound;
    struct vtn_value *values;
 
+   /* True if we should watch out for GLSLang issue #179 */
+   bool wa_glslang_179;
+
+   /* True if we need to fix up CS OpControlBarrier */
+   bool wa_glslang_cs_barrier;
+
    gl_shader_stage entry_point_stage;
    const char *entry_point_name;
    struct vtn_value *entry_point;
-   bool origin_upper_left;
-   bool pixel_center_integer;
+   struct vtn_value *workgroup_size_builtin;
+   bool variable_pointers;
 
    struct vtn_function *func;
-   struct exec_list functions;
+   struct list_head functions;
 
    /* Current function parameter index */
    unsigned func_param_idx;
 
    bool has_loop_continue;
+
+   /* false by default, set to true by the ContractionOff execution mode */
+   bool exact;
+
+   /* when a physical memory model is choosen */
+   bool physical_ptrs;
 };
 
 nir_ssa_def *
@@ -580,50 +694,119 @@ vtn_pointer_from_ssa(struct vtn_builder *b, nir_ssa_def *ssa,
                      struct vtn_type *ptr_type);
 
 static inline struct vtn_value *
+vtn_untyped_value(struct vtn_builder *b, uint32_t value_id)
+{
+   vtn_fail_if(value_id >= b->value_id_bound,
+               "SPIR-V id %u is out-of-bounds", value_id);
+   return &b->values[value_id];
+}
+
+/* Consider not using this function directly and instead use
+ * vtn_push_ssa/vtn_push_value_pointer so that appropriate applying of
+ * decorations is handled by common code.
+ */
+static inline struct vtn_value *
 vtn_push_value(struct vtn_builder *b, uint32_t value_id,
                enum vtn_value_type value_type)
 {
-   assert(value_id < b->value_id_bound);
-   assert(b->values[value_id].value_type == vtn_value_type_invalid);
+   struct vtn_value *val = vtn_untyped_value(b, value_id);
 
-   b->values[value_id].value_type = value_type;
+   vtn_fail_if(val->value_type != vtn_value_type_invalid,
+               "SPIR-V id %u has already been written by another instruction",
+               value_id);
+
+   val->value_type = value_type;
 
    return &b->values[value_id];
 }
 
 static inline struct vtn_value *
-vtn_push_ssa(struct vtn_builder *b, uint32_t value_id,
-             struct vtn_type *type, struct vtn_ssa_value *ssa)
+vtn_value(struct vtn_builder *b, uint32_t value_id,
+          enum vtn_value_type value_type)
 {
-   struct vtn_value *val;
-   if (type->base_type == vtn_base_type_pointer) {
-      val = vtn_push_value(b, value_id, vtn_value_type_pointer);
-      val->pointer = vtn_pointer_from_ssa(b, ssa->def, type);
-   } else {
-      val = vtn_push_value(b, value_id, vtn_value_type_ssa);
-      val->ssa = ssa;
-   }
+   struct vtn_value *val = vtn_untyped_value(b, value_id);
+   vtn_fail_if(val->value_type != value_type,
+               "SPIR-V id %u is the wrong kind of value", value_id);
    return val;
 }
 
-static inline struct vtn_value *
-vtn_untyped_value(struct vtn_builder *b, uint32_t value_id)
+bool
+vtn_set_instruction_result_type(struct vtn_builder *b, SpvOp opcode,
+                                const uint32_t *w, unsigned count);
+
+static inline uint64_t
+vtn_constant_uint(struct vtn_builder *b, uint32_t value_id)
 {
-   assert(value_id < b->value_id_bound);
-   return &b->values[value_id];
+   struct vtn_value *val = vtn_value(b, value_id, vtn_value_type_constant);
+
+   vtn_fail_if(val->type->base_type != vtn_base_type_scalar ||
+               !glsl_type_is_integer(val->type->type),
+               "Expected id %u to be an integer constant", value_id);
+
+   switch (glsl_get_bit_size(val->type->type)) {
+   case 8:  return val->constant->values[0].u8;
+   case 16: return val->constant->values[0].u16;
+   case 32: return val->constant->values[0].u32;
+   case 64: return val->constant->values[0].u64;
+   default: unreachable("Invalid bit size");
+   }
 }
 
-static inline struct vtn_value *
-vtn_value(struct vtn_builder *b, uint32_t value_id,
-          enum vtn_value_type value_type)
+static inline int64_t
+vtn_constant_int(struct vtn_builder *b, uint32_t value_id)
 {
-   struct vtn_value *val = vtn_untyped_value(b, value_id);
-   assert(val->value_type == value_type);
-   return val;
+   struct vtn_value *val = vtn_value(b, value_id, vtn_value_type_constant);
+
+   vtn_fail_if(val->type->base_type != vtn_base_type_scalar ||
+               !glsl_type_is_integer(val->type->type),
+               "Expected id %u to be an integer constant", value_id);
+
+   switch (glsl_get_bit_size(val->type->type)) {
+   case 8:  return val->constant->values[0].i8;
+   case 16: return val->constant->values[0].i16;
+   case 32: return val->constant->values[0].i32;
+   case 64: return val->constant->values[0].i64;
+   default: unreachable("Invalid bit size");
+   }
+}
+
+static inline enum gl_access_qualifier vtn_value_access(struct vtn_value *value)
+{
+   switch (value->value_type) {
+   case vtn_value_type_invalid:
+   case vtn_value_type_undef:
+   case vtn_value_type_string:
+   case vtn_value_type_decoration_group:
+   case vtn_value_type_constant:
+   case vtn_value_type_function:
+   case vtn_value_type_block:
+   case vtn_value_type_extension:
+      return 0;
+   case vtn_value_type_type:
+      return value->type->access;
+   case vtn_value_type_pointer:
+      return value->pointer->access;
+   case vtn_value_type_ssa:
+      return value->ssa->access;
+   case vtn_value_type_image_pointer:
+      return value->image->image->access;
+   case vtn_value_type_sampled_image:
+      return value->sampled_image->image->access |
+         value->sampled_image->sampler->access;
+   }
+
+   unreachable("invalid type");
 }
 
 struct vtn_ssa_value *vtn_ssa_value(struct vtn_builder *b, uint32_t value_id);
 
+struct vtn_value *vtn_push_value_pointer(struct vtn_builder *b,
+                                         uint32_t value_id,
+                                         struct vtn_pointer *ptr);
+
+struct vtn_value *vtn_push_ssa(struct vtn_builder *b, uint32_t value_id,
+                               struct vtn_type *type, struct vtn_ssa_value *ssa);
+
 struct vtn_ssa_value *vtn_create_ssa_value(struct vtn_builder *b,
                                            const struct glsl_type *type);
 
@@ -639,22 +822,25 @@ nir_ssa_def *vtn_vector_insert(struct vtn_builder *b, nir_ssa_def *src,
 nir_ssa_def *vtn_vector_insert_dynamic(struct vtn_builder *b, nir_ssa_def *src,
                                        nir_ssa_def *insert, nir_ssa_def *index);
 
-nir_deref_var *vtn_nir_deref(struct vtn_builder *b, uint32_t id);
+nir_deref_instr *vtn_nir_deref(struct vtn_builder *b, uint32_t id);
 
 struct vtn_pointer *vtn_pointer_for_variable(struct vtn_builder *b,
                                              struct vtn_variable *var,
                                              struct vtn_type *ptr_type);
 
-nir_deref_var *vtn_pointer_to_deref(struct vtn_builder *b,
-                                    struct vtn_pointer *ptr);
+nir_deref_instr *vtn_pointer_to_deref(struct vtn_builder *b,
+                                      struct vtn_pointer *ptr);
 nir_ssa_def *
 vtn_pointer_to_offset(struct vtn_builder *b, struct vtn_pointer *ptr,
-                      nir_ssa_def **index_out, unsigned *end_idx_out);
+                      nir_ssa_def **index_out);
 
-struct vtn_ssa_value *vtn_local_load(struct vtn_builder *b, nir_deref_var *src);
+struct vtn_ssa_value *
+vtn_local_load(struct vtn_builder *b, nir_deref_instr *src,
+               enum gl_access_qualifier access);
 
 void vtn_local_store(struct vtn_builder *b, struct vtn_ssa_value *src,
-                     nir_deref_var *dest);
+                     nir_deref_instr *dest,
+                     enum gl_access_qualifier access);
 
 struct vtn_ssa_value *
 vtn_variable_load(struct vtn_builder *b, struct vtn_pointer *src);
@@ -685,18 +871,71 @@ void vtn_foreach_execution_mode(struct vtn_builder *b, struct vtn_value *value,
 
 nir_op vtn_nir_alu_op_for_spirv_opcode(struct vtn_builder *b,
                                        SpvOp opcode, bool *swap,
-                                       nir_alu_type src, nir_alu_type dst);
+                                       unsigned src_bit_size, unsigned dst_bit_size);
 
 void vtn_handle_alu(struct vtn_builder *b, SpvOp opcode,
                     const uint32_t *w, unsigned count);
 
-bool vtn_handle_glsl450_instruction(struct vtn_builder *b, uint32_t ext_opcode,
+void vtn_handle_bitcast(struct vtn_builder *b, const uint32_t *w,
+                        unsigned count);
+
+void vtn_handle_subgroup(struct vtn_builder *b, SpvOp opcode,
+                         const uint32_t *w, unsigned count);
+
+bool vtn_handle_glsl450_instruction(struct vtn_builder *b, SpvOp ext_opcode,
                                     const uint32_t *words, unsigned count);
 
+bool vtn_handle_opencl_instruction(struct vtn_builder *b, SpvOp ext_opcode,
+                                   const uint32_t *words, unsigned count);
+
+struct vtn_builder* vtn_create_builder(const uint32_t *words, size_t word_count,
+                                       gl_shader_stage stage, const char *entry_point_name,
+                                       const struct spirv_to_nir_options *options);
+
+void vtn_handle_entry_point(struct vtn_builder *b, const uint32_t *w,
+                            unsigned count);
+
+void vtn_handle_decoration(struct vtn_builder *b, SpvOp opcode,
+                           const uint32_t *w, unsigned count);
+
+enum vtn_variable_mode vtn_storage_class_to_mode(struct vtn_builder *b,
+                                                 SpvStorageClass class,
+                                                 struct vtn_type *interface_type,
+                                                 nir_variable_mode *nir_mode_out);
+
+nir_address_format vtn_mode_to_address_format(struct vtn_builder *b,
+                                              enum vtn_variable_mode);
+
+static inline uint32_t
+vtn_align_u32(uint32_t v, uint32_t a)
+{
+   assert(a != 0 && a == (a & -((int32_t) a)));
+   return (v + a - 1) & ~(a - 1);
+}
+
 static inline uint64_t
 vtn_u64_literal(const uint32_t *w)
 {
    return (uint64_t)w[1] << 32 | w[0];
 }
 
+bool vtn_handle_amd_gcn_shader_instruction(struct vtn_builder *b, SpvOp ext_opcode,
+                                           const uint32_t *words, unsigned count);
+
+bool vtn_handle_amd_shader_ballot_instruction(struct vtn_builder *b, SpvOp ext_opcode,
+                                              const uint32_t *w, unsigned count);
+
+bool vtn_handle_amd_shader_trinary_minmax_instruction(struct vtn_builder *b, SpvOp ext_opcode,
+						      const uint32_t *words, unsigned count);
+
+bool vtn_handle_amd_shader_explicit_vertex_parameter_instruction(struct vtn_builder *b,
+                                                                 SpvOp ext_opcode,
+                                                                 const uint32_t *words,
+                                                                 unsigned count);
+
+SpvMemorySemanticsMask vtn_storage_class_to_memory_semantics(SpvStorageClass sc);
+
+void vtn_emit_memory_barrier(struct vtn_builder *b, SpvScope scope,
+                             SpvMemorySemanticsMask semantics);
+
 #endif /* _VTN_PRIVATE_H_ */