util: reinstate ENUM_PACKED

gets rid of warning: 'gcc_struct' attribute ignored [-Wattributes] introduced by !23338

Fixes: 86532fa21d ("util: Use the gcc_struct attribute for packed structures in mingw")
Reviewed-by: Yonggang Luo <luoyonggang@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23478>

src/compiler/glsl/ir_uniform.h

@@ -41,7 +41,7 @@
 extern "C" {
 #endif
 
-enum PACKED gl_uniform_driver_format {
+enum ENUM_PACKED gl_uniform_driver_format {
    uniform_native = 0,          /**< Store data in the native format. */
    uniform_int_float,           /**< Store integer data as floats. */
 };

src/compiler/nir/nir.h

@@ -902,7 +902,7 @@ typedef struct nir_register {
 #define nir_foreach_register_safe(reg, reg_list) \
    foreach_list_typed_safe(nir_register, reg, node, reg_list)
 
-typedef enum PACKED {
+typedef enum ENUM_PACKED {
    nir_instr_type_alu,
    nir_instr_type_deref,
    nir_instr_type_call,
@@ -1265,7 +1265,7 @@ typedef struct {
  * The values in this enum are carefully chosen so that the sized type is
  * just the unsized type OR the number of bits.
  */
-typedef enum PACKED {
+typedef enum ENUM_PACKED {
    nir_type_invalid = 0, /* Not a valid type */
    nir_type_int =       2,
    nir_type_uint =      4,
@@ -5300,7 +5300,7 @@ bool
 nir_lower_sysvals_to_varyings(nir_shader *shader,
                               const struct nir_lower_sysvals_to_varyings_options *options);
 
-enum PACKED nir_lower_tex_packing {
+enum ENUM_PACKED nir_lower_tex_packing {
    /** No packing */
    nir_lower_tex_packing_none = 0,
    /**

src/compiler/nir/nir_range_analysis.h

@@ -25,7 +25,7 @@
 
 #include "nir.h"
 
-enum PACKED ssa_ranges {
+enum ENUM_PACKED ssa_ranges {
    unknown = 0,
    lt_zero,
    le_zero,

src/compiler/nir/nir_search.h

@@ -32,7 +32,7 @@
 
 struct nir_builder;
 
-typedef enum PACKED {
+typedef enum ENUM_PACKED {
    nir_search_value_expression,
    nir_search_value_variable,
    nir_search_value_constant,

src/compiler/shader_enums.h

@@ -1157,7 +1157,7 @@ enum tess_primitive_mode
 /**
  * Mesa primitive types for both GL and Vulkan:
  */
-enum PACKED mesa_prim
+enum ENUM_PACKED mesa_prim
 {
    MESA_PRIM_POINTS,
    MESA_PRIM_LINES,
@@ -1318,7 +1318,7 @@ enum cl_sampler_filter_mode {
 #define MAT_BIT_BACK_INDEXES          (1<<MAT_ATTRIB_BACK_INDEXES)
 
 /** An enum representing what kind of input gl_SubgroupSize is. */
-enum PACKED gl_subgroup_size
+enum ENUM_PACKED gl_subgroup_size
 {
    /** Actual subgroup size, whatever that happens to be */
    SUBGROUP_SIZE_VARYING = 0,