radeonsi: Add support for TGSI TXF opcode

diff --git a/src/gallium/drivers/radeon/LLVM_REVISION.txt b/src/gallium/drivers/radeon/LLVM_REVISION.txt
index b523c5a..32abc84 100644 (file)
--- a/src/gallium/drivers/radeon/LLVM_REVISION.txt
+++ b/src/gallium/drivers/radeon/LLVM_REVISION.txt
@@ -1 +1 @@
-@181228
+@181267

diff --git a/src/gallium/drivers/radeonsi/radeonsi_shader.c b/src/gallium/drivers/radeonsi/radeonsi_shader.c
index 0329230..a86196b 100644 (file)
--- a/src/gallium/drivers/radeonsi/radeonsi_shader.c
+++ b/src/gallium/drivers/radeonsi/radeonsi_shader.c
@@ -947,7 +947,7 @@ static void tex_fetch_args(
        }
 
        /* Pack LOD */
-       if (opcode == TGSI_OPCODE_TXL)
+       if (opcode == TGSI_OPCODE_TXL || opcode == TGSI_OPCODE_TXF)
                address[count++] = coords[3];
 
        if (count > 16) {
@@ -962,26 +962,56 @@ static void tex_fetch_args(
                                                 "");
        }
 
-       /* Pad to power of two vector */
-       while (count < util_next_power_of_two(count))
-               address[count++] = LLVMGetUndef(LLVMInt32TypeInContext(gallivm->context));
-
-       emit_data->args[0] = lp_build_gather_values(gallivm, address, count);
-
        /* Resource */
        emit_data->args[1] = si_shader_ctx->resources[emit_data->inst->Src[1].Register.Index];
 
-       /* Sampler */
-       emit_data->args[2] = si_shader_ctx->samplers[emit_data->inst->Src[1].Register.Index];
+       if (opcode == TGSI_OPCODE_TXF) {
+               /* add tex offsets */
+               if (inst->Texture.NumOffsets) {
+                       struct lp_build_context *uint_bld = &bld_base->uint_bld;
+                       struct lp_build_tgsi_soa_context *bld = lp_soa_context(bld_base);
+                       const struct tgsi_texture_offset * off = inst->TexOffsets;
+
+                       assert(inst->Texture.NumOffsets == 1);
+
+                       address[0] =
+                               lp_build_add(uint_bld, address[0],
+                                            bld->immediates[off->Index][off->SwizzleX]);
+                       if (num_coords > 1)
+                               address[1] =
+                                       lp_build_add(uint_bld, address[1],
+                                                    bld->immediates[off->Index][off->SwizzleY]);
+                       if (num_coords > 2)
+                               address[2] =
+                                       lp_build_add(uint_bld, address[2],
+                                                    bld->immediates[off->Index][off->SwizzleZ]);
+               }
 
-       /* Dimensions */
-       emit_data->args[3] = lp_build_const_int32(bld_base->base.gallivm, target);
+               emit_data->dst_type = LLVMVectorType(
+                       LLVMInt32TypeInContext(bld_base->base.gallivm->context),
+                       4);
 
-       emit_data->arg_count = 4;
+               emit_data->arg_count = 3;
+       } else {
+               /* Sampler */
+               emit_data->args[2] = si_shader_ctx->samplers[emit_data->inst->Src[1].Register.Index];
 
-       emit_data->dst_type = LLVMVectorType(
+               emit_data->dst_type = LLVMVectorType(
                        LLVMFloatTypeInContext(bld_base->base.gallivm->context),
                        4);
+
+               emit_data->arg_count = 4;
+       }
+
+       /* Dimensions */
+       emit_data->args[emit_data->arg_count - 1] =
+               lp_build_const_int32(bld_base->base.gallivm, target);
+
+       /* Pad to power of two vector */
+       while (count < util_next_power_of_two(count))
+               address[count++] = LLVMGetUndef(LLVMInt32TypeInContext(gallivm->context));
+
+       emit_data->args[0] = lp_build_gather_values(gallivm, address, count);
 }
 
 static void build_tex_intrinsic(const struct lp_build_tgsi_action * action,
@@ -1012,6 +1042,12 @@ static const struct lp_build_tgsi_action txb_action = {
        .intr_name = "llvm.SI.sampleb."
 };
 
+static const struct lp_build_tgsi_action txf_action = {
+       .fetch_args = tex_fetch_args,
+       .emit = build_tex_intrinsic,
+       .intr_name = "llvm.SI.imageload."
+};
+
 static const struct lp_build_tgsi_action txl_action = {
        .fetch_args = tex_fetch_args,
        .emit = build_tex_intrinsic,
@@ -1256,6 +1292,7 @@ int si_pipe_shader_create(
 
        bld_base->op_actions[TGSI_OPCODE_TEX] = tex_action;
        bld_base->op_actions[TGSI_OPCODE_TXB] = txb_action;
+       bld_base->op_actions[TGSI_OPCODE_TXF] = txf_action;
        bld_base->op_actions[TGSI_OPCODE_TXL] = txl_action;
        bld_base->op_actions[TGSI_OPCODE_TXP] = tex_action;