2 * Copyright 2011 Advanced Micro Devices, Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * Authors: Tom Stellard <thomas.stellard@amd.com>
30 #include <llvm-c/Core.h>
31 #include "gallivm/lp_bld_init.h"
32 #include "gallivm/lp_bld_tgsi.h"
34 #define RADEON_LLVM_MAX_INPUTS 32 * 4
35 #define RADEON_LLVM_MAX_OUTPUTS 32 * 4
37 #define RADEON_LLVM_INITIAL_CF_DEPTH 4
39 #define RADEON_LLVM_MAX_SYSTEM_VALUES 4
41 struct radeon_llvm_branch
{
42 LLVMBasicBlockRef endif_block
;
43 LLVMBasicBlockRef if_block
;
44 LLVMBasicBlockRef else_block
;
48 struct radeon_llvm_loop
{
49 LLVMBasicBlockRef loop_block
;
50 LLVMBasicBlockRef endloop_block
;
53 struct radeon_llvm_context
{
55 struct lp_build_tgsi_soa_context soa
;
61 unsigned inputs_count
;
62 struct r600_shader_io
* r600_inputs
;
63 struct r600_shader_io
* r600_outputs
;
64 struct pipe_stream_output_info
*stream_outputs
;
65 unsigned color_buffer_count
;
66 unsigned fs_color_all
;
67 unsigned alpha_to_one
;
68 unsigned has_txq_cube_array_z_comp
;
69 unsigned uses_tex_buffers
;
70 unsigned has_compressed_msaa_texturing
;
72 /*=== Front end configuration ===*/
74 /* Instructions that are not described by any of the TGSI opcodes. */
76 /** This function is responsible for initilizing the inputs array and will be
77 * called once for each input declared in the TGSI shader.
79 void (*load_input
)(struct radeon_llvm_context
*,
81 const struct tgsi_full_declaration
*decl
);
83 void (*load_system_value
)(struct radeon_llvm_context
*,
85 const struct tgsi_full_declaration
*decl
);
87 /** This array contains the input values for the shader. Typically these
88 * values will be in the form of a target intrinsic that will inform the
89 * backend how to load the actual inputs to the shader.
91 LLVMValueRef inputs
[RADEON_LLVM_MAX_INPUTS
];
92 LLVMValueRef outputs
[RADEON_LLVM_MAX_OUTPUTS
][TGSI_NUM_CHANNELS
];
93 unsigned output_reg_count
;
95 /** This pointer is used to contain the temporary values.
96 * The amount of temporary used in tgsi can't be bound to a max value and
97 * thus we must allocate this array at runtime.
100 unsigned temps_count
;
101 LLVMValueRef system_values
[RADEON_LLVM_MAX_SYSTEM_VALUES
];
103 /*=== Private Members ===*/
105 struct radeon_llvm_branch
*branch
;
106 struct radeon_llvm_loop
*loop
;
108 unsigned branch_depth
;
109 unsigned branch_depth_max
;
111 unsigned loop_depth_max
;
113 struct tgsi_declaration_range
*arrays
;
115 LLVMValueRef main_fn
;
117 struct gallivm_state gallivm
;
120 static inline LLVMTypeRef
tgsi2llvmtype(
121 struct lp_build_tgsi_context
* bld_base
,
122 enum tgsi_opcode_type type
)
124 LLVMContextRef ctx
= bld_base
->base
.gallivm
->context
;
127 case TGSI_TYPE_UNSIGNED
:
128 case TGSI_TYPE_SIGNED
:
129 return LLVMInt32TypeInContext(ctx
);
130 case TGSI_TYPE_DOUBLE
:
131 return LLVMDoubleTypeInContext(ctx
);
132 case TGSI_TYPE_UNTYPED
:
133 case TGSI_TYPE_FLOAT
:
134 return LLVMFloatTypeInContext(ctx
);
140 static inline LLVMValueRef
bitcast(
141 struct lp_build_tgsi_context
* bld_base
,
142 enum tgsi_opcode_type type
,
146 LLVMBuilderRef builder
= bld_base
->base
.gallivm
->builder
;
147 LLVMTypeRef dst_type
= tgsi2llvmtype(bld_base
, type
);
150 return LLVMBuildBitCast(builder
, value
, dst_type
, "");
156 void radeon_llvm_emit_prepare_cube_coords(struct lp_build_tgsi_context
* bld_base
,
157 struct lp_build_emit_data
* emit_data
,
158 LLVMValueRef
*coords_arg
,
159 LLVMValueRef
*derivs_arg
);
161 void radeon_llvm_context_init(struct radeon_llvm_context
* ctx
);
163 void radeon_llvm_create_func(struct radeon_llvm_context
* ctx
,
164 LLVMTypeRef
*ParamTypes
, unsigned ParamCount
);
166 void radeon_llvm_dispose(struct radeon_llvm_context
* ctx
);
168 inline static struct radeon_llvm_context
* radeon_llvm_context(
169 struct lp_build_tgsi_context
* bld_base
)
171 return (struct radeon_llvm_context
*)bld_base
;
174 unsigned radeon_llvm_reg_index_soa(unsigned index
, unsigned chan
);
176 void radeon_llvm_finalize_module(struct radeon_llvm_context
* ctx
);
179 build_tgsi_intrinsic_nomem(
180 const struct lp_build_tgsi_action
* action
,
181 struct lp_build_tgsi_context
* bld_base
,
182 struct lp_build_emit_data
* emit_data
);
185 radeon_llvm_emit_fetch_double(struct lp_build_tgsi_context
*bld_base
,
189 LLVMValueRef
radeon_llvm_saturate(struct lp_build_tgsi_context
*bld_base
,
192 LLVMValueRef
radeon_llvm_emit_fetch(struct lp_build_tgsi_context
*bld_base
,
193 const struct tgsi_full_src_register
*reg
,
194 enum tgsi_opcode_type type
,
197 void radeon_llvm_emit_store(
198 struct lp_build_tgsi_context
* bld_base
,
199 const struct tgsi_full_instruction
* inst
,
200 const struct tgsi_opcode_info
* info
,
201 LLVMValueRef dst
[4]);
203 #endif /* RADEON_LLVM_H */