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
{
54 struct lp_build_tgsi_soa_context soa
;
56 /*=== Front end configuration ===*/
58 /* Instructions that are not described by any of the TGSI opcodes. */
60 /** This function is responsible for initilizing the inputs array and will be
61 * called once for each input declared in the TGSI shader.
63 void (*load_input
)(struct radeon_llvm_context
*,
65 const struct tgsi_full_declaration
*decl
);
67 void (*load_system_value
)(struct radeon_llvm_context
*,
69 const struct tgsi_full_declaration
*decl
);
71 /** This array contains the input values for the shader. Typically these
72 * values will be in the form of a target intrinsic that will inform the
73 * backend how to load the actual inputs to the shader.
75 LLVMValueRef inputs
[RADEON_LLVM_MAX_INPUTS
];
76 LLVMValueRef outputs
[RADEON_LLVM_MAX_OUTPUTS
][TGSI_NUM_CHANNELS
];
78 /** This pointer is used to contain the temporary values.
79 * The amount of temporary used in tgsi can't be bound to a max value and
80 * thus we must allocate this array at runtime.
84 LLVMValueRef system_values
[RADEON_LLVM_MAX_SYSTEM_VALUES
];
86 /*=== Private Members ===*/
88 struct radeon_llvm_branch
*branch
;
89 struct radeon_llvm_loop
*loop
;
91 unsigned branch_depth
;
92 unsigned branch_depth_max
;
94 unsigned loop_depth_max
;
96 struct tgsi_declaration_range
*arrays
;
99 LLVMTypeRef return_type
;
101 struct gallivm_state gallivm
;
104 static inline LLVMTypeRef
tgsi2llvmtype(
105 struct lp_build_tgsi_context
* bld_base
,
106 enum tgsi_opcode_type type
)
108 LLVMContextRef ctx
= bld_base
->base
.gallivm
->context
;
111 case TGSI_TYPE_UNSIGNED
:
112 case TGSI_TYPE_SIGNED
:
113 return LLVMInt32TypeInContext(ctx
);
114 case TGSI_TYPE_DOUBLE
:
115 return LLVMDoubleTypeInContext(ctx
);
116 case TGSI_TYPE_UNTYPED
:
117 case TGSI_TYPE_FLOAT
:
118 return LLVMFloatTypeInContext(ctx
);
124 static inline LLVMValueRef
bitcast(
125 struct lp_build_tgsi_context
* bld_base
,
126 enum tgsi_opcode_type type
,
130 LLVMBuilderRef builder
= bld_base
->base
.gallivm
->builder
;
131 LLVMTypeRef dst_type
= tgsi2llvmtype(bld_base
, type
);
134 return LLVMBuildBitCast(builder
, value
, dst_type
, "");
140 void radeon_llvm_emit_prepare_cube_coords(struct lp_build_tgsi_context
* bld_base
,
141 struct lp_build_emit_data
* emit_data
,
142 LLVMValueRef
*coords_arg
,
143 LLVMValueRef
*derivs_arg
);
145 void radeon_llvm_context_init(struct radeon_llvm_context
* ctx
,
148 void radeon_llvm_create_func(struct radeon_llvm_context
* ctx
,
149 LLVMTypeRef
*return_types
, unsigned num_return_elems
,
150 LLVMTypeRef
*ParamTypes
, unsigned ParamCount
);
152 void radeon_llvm_dispose(struct radeon_llvm_context
* ctx
);
154 inline static struct radeon_llvm_context
* radeon_llvm_context(
155 struct lp_build_tgsi_context
* bld_base
)
157 return (struct radeon_llvm_context
*)bld_base
;
160 unsigned radeon_llvm_reg_index_soa(unsigned index
, unsigned chan
);
162 void radeon_llvm_finalize_module(struct radeon_llvm_context
* ctx
);
165 build_tgsi_intrinsic_nomem(
166 const struct lp_build_tgsi_action
* action
,
167 struct lp_build_tgsi_context
* bld_base
,
168 struct lp_build_emit_data
* emit_data
);
171 radeon_llvm_emit_fetch_double(struct lp_build_tgsi_context
*bld_base
,
175 LLVMValueRef
radeon_llvm_saturate(struct lp_build_tgsi_context
*bld_base
,
178 LLVMValueRef
radeon_llvm_emit_fetch(struct lp_build_tgsi_context
*bld_base
,
179 const struct tgsi_full_src_register
*reg
,
180 enum tgsi_opcode_type type
,
183 void radeon_llvm_emit_store(
184 struct lp_build_tgsi_context
* bld_base
,
185 const struct tgsi_full_instruction
* inst
,
186 const struct tgsi_opcode_info
* info
,
187 LLVMValueRef dst
[4]);
189 #endif /* RADEON_LLVM_H */