[Mesa-dev] [PATCH 07/47] spirv/nir: Handle 16-bit types

Alejandro PiƱeiro apinheiro at igalia.com
Thu Aug 24 13:54:22 UTC 2017


From: Eduardo Lima Mitev <elima at igalia.com>

v2: Added more missing implementations of 16-bit types. (Jason Ekstrand)

Signed-off-by: Jose Maria Casanova Crespo <jmcasanova at igalia.com>
Signed-off-by: Eduardo Lima <elima at igalia.com>
---
 src/compiler/spirv/spirv_to_nir.c  | 46 ++++++++++++++++++++++++++++++++------
 src/compiler/spirv/vtn_variables.c | 21 +++++++++++++++++
 2 files changed, 60 insertions(+), 7 deletions(-)

diff --git a/src/compiler/spirv/spirv_to_nir.c b/src/compiler/spirv/spirv_to_nir.c
index 7b34dad30cd..abeb5a22d03 100644
--- a/src/compiler/spirv/spirv_to_nir.c
+++ b/src/compiler/spirv/spirv_to_nir.c
@@ -104,10 +104,13 @@ vtn_const_ssa_value(struct vtn_builder *b, nir_constant *constant,
    switch (glsl_get_base_type(type)) {
    case GLSL_TYPE_INT:
    case GLSL_TYPE_UINT:
+   case GLSL_TYPE_INT16:
+   case GLSL_TYPE_UINT16:
    case GLSL_TYPE_INT64:
    case GLSL_TYPE_UINT64:
    case GLSL_TYPE_BOOL:
    case GLSL_TYPE_FLOAT:
+   case GLSL_TYPE_FLOAT16:
    case GLSL_TYPE_DOUBLE: {
       int bit_size = glsl_get_bit_size(type);
       if (glsl_type_is_vector_or_scalar(type)) {
@@ -751,16 +754,32 @@ vtn_handle_type(struct vtn_builder *b, SpvOp opcode,
       int bit_size = w[2];
       const bool signedness = w[3];
       val->type->base_type = vtn_base_type_scalar;
-      if (bit_size == 64)
+      if (bit_size == 64) {
          val->type->type = (signedness ? glsl_int64_t_type() : glsl_uint64_t_type());
-      else
+      } else if (bit_size == 16) {
+         val->type->type = (signedness ? glsl_int16_t_type() : glsl_uint16_t_type());
+      } else {
+         assert(bit_size == 32);
          val->type->type = (signedness ? glsl_int_type() : glsl_uint_type());
+      }
       break;
    }
    case SpvOpTypeFloat: {
       int bit_size = w[2];
       val->type->base_type = vtn_base_type_scalar;
-      val->type->type = bit_size == 64 ? glsl_double_type() : glsl_float_type();
+      switch (bit_size) {
+      case 16:
+         val->type->type = glsl_float16_t_type();
+         break;
+      case 32:
+         val->type->type = glsl_float_type();
+         break;
+      case 64:
+         val->type->type = glsl_double_type();
+         break;
+      default:
+         assert(!"Invalid float bit size");
+      }
       break;
    }
 
@@ -980,10 +999,13 @@ vtn_null_constant(struct vtn_builder *b, const struct glsl_type *type)
    switch (glsl_get_base_type(type)) {
    case GLSL_TYPE_INT:
    case GLSL_TYPE_UINT:
+   case GLSL_TYPE_INT16:
+   case GLSL_TYPE_UINT16:
    case GLSL_TYPE_INT64:
    case GLSL_TYPE_UINT64:
    case GLSL_TYPE_BOOL:
    case GLSL_TYPE_FLOAT:
+   case GLSL_TYPE_FLOAT16:
    case GLSL_TYPE_DOUBLE:
       /* Nothing to do here.  It's already initialized to zero */
       break;
@@ -1110,7 +1132,7 @@ vtn_handle_constant(struct vtn_builder *b, SpvOp opcode,
          val->constant->values->u32[0] = w[3];
          val->constant->values->u32[1] = w[4];
       } else {
-         assert(bit_size == 32);
+         assert(bit_size == 32 || bit_size == 16);
          val->constant->values->u32[0] = w[3];
       }
       break;
@@ -1136,9 +1158,12 @@ vtn_handle_constant(struct vtn_builder *b, SpvOp opcode,
       switch (glsl_get_base_type(val->const_type)) {
       case GLSL_TYPE_UINT:
       case GLSL_TYPE_INT:
+      case GLSL_TYPE_UINT16:
+      case GLSL_TYPE_INT16:
       case GLSL_TYPE_UINT64:
       case GLSL_TYPE_INT64:
       case GLSL_TYPE_FLOAT:
+      case GLSL_TYPE_FLOAT16:
       case GLSL_TYPE_BOOL:
       case GLSL_TYPE_DOUBLE: {
          int bit_size = glsl_get_bit_size(val->const_type);
@@ -1153,7 +1178,7 @@ vtn_handle_constant(struct vtn_builder *b, SpvOp opcode,
                if (bit_size == 64) {
                   val->constant->values[0].u64[i] = elems[i]->values[0].u64[0];
                } else {
-                  assert(bit_size == 32);
+                  assert(bit_size == 32 || bit_size == 16);
                   val->constant->values[0].u32[i] = elems[i]->values[0].u32[0];
                }
             }
@@ -1228,6 +1253,7 @@ vtn_handle_constant(struct vtn_builder *b, SpvOp opcode,
                   val->constant->values[0].u64[j] = u64[comp];
             }
          } else {
+            /* This is for both 32-bit and 16-bit values */
             uint32_t u32[8];
             if (v0->value_type == vtn_value_type_constant) {
                for (unsigned i = 0; i < len0; i++)
@@ -1276,9 +1302,12 @@ vtn_handle_constant(struct vtn_builder *b, SpvOp opcode,
             switch (glsl_get_base_type(type)) {
             case GLSL_TYPE_UINT:
             case GLSL_TYPE_INT:
+            case GLSL_TYPE_UINT16:
+            case GLSL_TYPE_INT16:
             case GLSL_TYPE_UINT64:
             case GLSL_TYPE_INT64:
             case GLSL_TYPE_FLOAT:
+            case GLSL_TYPE_FLOAT16:
             case GLSL_TYPE_DOUBLE:
             case GLSL_TYPE_BOOL:
                /* If we hit this granularity, we're picking off an element */
@@ -1319,7 +1348,7 @@ vtn_handle_constant(struct vtn_builder *b, SpvOp opcode,
                   if (bit_size == 64) {
                      val->constant->values[0].u64[i] = (*c)->values[col].u64[elem + i];
                   } else {
-                     assert(bit_size == 32);
+                     assert(bit_size == 32 || bit_size == 16);
                      val->constant->values[0].u32[i] = (*c)->values[col].u32[elem + i];
                   }
             }
@@ -1336,7 +1365,7 @@ vtn_handle_constant(struct vtn_builder *b, SpvOp opcode,
                   if (bit_size == 64) {
                      (*c)->values[col].u64[elem + i] = insert->constant->values[0].u64[i];
                   } else {
-                     assert(bit_size == 32);
+                     assert(bit_size == 32 || bit_size == 16);
                      (*c)->values[col].u32[elem + i] = insert->constant->values[0].u32[i];
                   }
             }
@@ -1449,10 +1478,13 @@ vtn_create_ssa_value(struct vtn_builder *b, const struct glsl_type *type)
          switch (glsl_get_base_type(type)) {
          case GLSL_TYPE_INT:
          case GLSL_TYPE_UINT:
+         case GLSL_TYPE_INT16:
+         case GLSL_TYPE_UINT16:
          case GLSL_TYPE_INT64:
          case GLSL_TYPE_UINT64:
          case GLSL_TYPE_BOOL:
          case GLSL_TYPE_FLOAT:
+         case GLSL_TYPE_FLOAT16:
          case GLSL_TYPE_DOUBLE:
             child_type = glsl_get_column_type(type);
             break;
diff --git a/src/compiler/spirv/vtn_variables.c b/src/compiler/spirv/vtn_variables.c
index 4432e72e54a..80ed948a63a 100644
--- a/src/compiler/spirv/vtn_variables.c
+++ b/src/compiler/spirv/vtn_variables.c
@@ -181,9 +181,12 @@ vtn_ssa_offset_pointer_dereference(struct vtn_builder *b,
       switch (glsl_get_base_type(type->type)) {
       case GLSL_TYPE_UINT:
       case GLSL_TYPE_INT:
+      case GLSL_TYPE_UINT16:
+      case GLSL_TYPE_INT16:
       case GLSL_TYPE_UINT64:
       case GLSL_TYPE_INT64:
       case GLSL_TYPE_FLOAT:
+      case GLSL_TYPE_FLOAT16:
       case GLSL_TYPE_DOUBLE:
       case GLSL_TYPE_BOOL:
       case GLSL_TYPE_ARRAY: {
@@ -293,9 +296,12 @@ vtn_pointer_to_deref(struct vtn_builder *b, struct vtn_pointer *ptr)
       switch (base_type) {
       case GLSL_TYPE_UINT:
       case GLSL_TYPE_INT:
+      case GLSL_TYPE_UINT16:
+      case GLSL_TYPE_INT16:
       case GLSL_TYPE_UINT64:
       case GLSL_TYPE_INT64:
       case GLSL_TYPE_FLOAT:
+      case GLSL_TYPE_FLOAT16:
       case GLSL_TYPE_DOUBLE:
       case GLSL_TYPE_BOOL:
       case GLSL_TYPE_ARRAY: {
@@ -518,9 +524,12 @@ vtn_pointer_to_offset(struct vtn_builder *b, struct vtn_pointer *ptr,
       switch (base_type) {
       case GLSL_TYPE_UINT:
       case GLSL_TYPE_INT:
+      case GLSL_TYPE_UINT16:
+      case GLSL_TYPE_INT16:
       case GLSL_TYPE_UINT64:
       case GLSL_TYPE_INT64:
       case GLSL_TYPE_FLOAT:
+      case GLSL_TYPE_FLOAT16:
       case GLSL_TYPE_DOUBLE:
       case GLSL_TYPE_BOOL:
       case GLSL_TYPE_ARRAY:
@@ -562,9 +571,12 @@ vtn_type_block_size(struct vtn_type *type)
    switch (base_type) {
    case GLSL_TYPE_UINT:
    case GLSL_TYPE_INT:
+   case GLSL_TYPE_UINT16:
+   case GLSL_TYPE_INT16:
    case GLSL_TYPE_UINT64:
    case GLSL_TYPE_INT64:
    case GLSL_TYPE_FLOAT:
+   case GLSL_TYPE_FLOAT16:
    case GLSL_TYPE_BOOL:
    case GLSL_TYPE_DOUBLE: {
       unsigned cols = type->row_major ? glsl_get_vector_elements(type->type) :
@@ -693,9 +705,12 @@ _vtn_block_load_store(struct vtn_builder *b, nir_intrinsic_op op, bool load,
    switch (base_type) {
    case GLSL_TYPE_UINT:
    case GLSL_TYPE_INT:
+   case GLSL_TYPE_UINT16:
+   case GLSL_TYPE_INT16:
    case GLSL_TYPE_UINT64:
    case GLSL_TYPE_INT64:
    case GLSL_TYPE_FLOAT:
+   case GLSL_TYPE_FLOAT16:
    case GLSL_TYPE_DOUBLE:
    case GLSL_TYPE_BOOL:
       /* This is where things get interesting.  At this point, we've hit
@@ -868,9 +883,12 @@ _vtn_variable_load_store(struct vtn_builder *b, bool load,
    switch (base_type) {
    case GLSL_TYPE_UINT:
    case GLSL_TYPE_INT:
+   case GLSL_TYPE_UINT16:
+   case GLSL_TYPE_INT16:
    case GLSL_TYPE_UINT64:
    case GLSL_TYPE_INT64:
    case GLSL_TYPE_FLOAT:
+   case GLSL_TYPE_FLOAT16:
    case GLSL_TYPE_BOOL:
    case GLSL_TYPE_DOUBLE:
       /* At this point, we have a scalar, vector, or matrix so we know that
@@ -948,9 +966,12 @@ _vtn_variable_copy(struct vtn_builder *b, struct vtn_pointer *dest,
    switch (base_type) {
    case GLSL_TYPE_UINT:
    case GLSL_TYPE_INT:
+   case GLSL_TYPE_UINT16:
+   case GLSL_TYPE_INT16:
    case GLSL_TYPE_UINT64:
    case GLSL_TYPE_INT64:
    case GLSL_TYPE_FLOAT:
+   case GLSL_TYPE_FLOAT16:
    case GLSL_TYPE_DOUBLE:
    case GLSL_TYPE_BOOL:
       /* At this point, we have a scalar, vector, or matrix so we know that
-- 
2.11.0



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