1 /**************************************************************************
3 * Copyright 2009 VMware, Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
32 * @author Jose Fonseca <jfonseca@vmware.com>
36 #include <llvm-c/Transforms/Scalar.h>
38 #include "util/u_memory.h"
39 #include "util/u_cpu_detect.h"
40 #include "lp_screen.h"
41 #include "lp_bld_intr.h"
42 #include "lp_bld_misc.h"
47 lp_jit_init_globals(struct llvmpipe_screen
*screen
)
49 LLVMTypeRef texture_type
;
51 /* struct lp_jit_texture */
53 LLVMTypeRef elem_types
[4];
55 elem_types
[LP_JIT_TEXTURE_WIDTH
] = LLVMInt32Type();
56 elem_types
[LP_JIT_TEXTURE_HEIGHT
] = LLVMInt32Type();
57 elem_types
[LP_JIT_TEXTURE_STRIDE
] = LLVMInt32Type();
58 elem_types
[LP_JIT_TEXTURE_DATA
] = LLVMPointerType(LLVMInt8Type(), 0);
60 texture_type
= LLVMStructType(elem_types
, Elements(elem_types
), 0);
62 LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture
, width
,
63 screen
->target
, texture_type
,
64 LP_JIT_TEXTURE_WIDTH
);
65 LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture
, height
,
66 screen
->target
, texture_type
,
67 LP_JIT_TEXTURE_HEIGHT
);
68 LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture
, stride
,
69 screen
->target
, texture_type
,
70 LP_JIT_TEXTURE_STRIDE
);
71 LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture
, data
,
72 screen
->target
, texture_type
,
74 LP_CHECK_STRUCT_SIZE(struct lp_jit_texture
,
75 screen
->target
, texture_type
);
77 LLVMAddTypeName(screen
->module
, "texture", texture_type
);
80 /* struct lp_jit_context */
82 LLVMTypeRef elem_types
[5];
83 LLVMTypeRef context_type
;
85 elem_types
[0] = LLVMPointerType(LLVMFloatType(), 0); /* constants */
86 elem_types
[1] = LLVMPointerType(LLVMInt8Type(), 0); /* samplers */
87 elem_types
[2] = LLVMFloatType(); /* alpha_ref_value */
88 elem_types
[3] = LLVMPointerType(LLVMInt8Type(), 0); /* blend_color */
89 elem_types
[4] = LLVMArrayType(texture_type
, PIPE_MAX_SAMPLERS
); /* textures */
91 context_type
= LLVMStructType(elem_types
, Elements(elem_types
), 0);
93 LP_CHECK_MEMBER_OFFSET(struct lp_jit_context
, constants
,
94 screen
->target
, context_type
, 0);
95 LP_CHECK_MEMBER_OFFSET(struct lp_jit_context
, samplers
,
96 screen
->target
, context_type
, 1);
97 LP_CHECK_MEMBER_OFFSET(struct lp_jit_context
, alpha_ref_value
,
98 screen
->target
, context_type
, 2);
99 LP_CHECK_MEMBER_OFFSET(struct lp_jit_context
, blend_color
,
100 screen
->target
, context_type
, 3);
101 LP_CHECK_MEMBER_OFFSET(struct lp_jit_context
, textures
,
102 screen
->target
, context_type
,
103 LP_JIT_CONTEXT_TEXTURES_INDEX
);
104 LP_CHECK_STRUCT_SIZE(struct lp_jit_context
,
105 screen
->target
, context_type
);
107 LLVMAddTypeName(screen
->module
, "context", context_type
);
109 screen
->context_ptr_type
= LLVMPointerType(context_type
, 0);
115 LLVMTypeRef ret_type
;
116 LLVMTypeRef arg_types
[3];
117 LLVMValueRef fetch_texel
;
119 ret_type
= LLVMVoidType();
120 arg_types
[0] = LLVMPointerType(LLVMInt8Type(), 0); /* samplers */
121 arg_types
[1] = LLVMInt32Type(); /* unit */
122 arg_types
[2] = LLVMPointerType(LLVMVectorType(LLVMFloatType(), 4), 0); /* store */
124 fetch_texel
= lp_declare_intrinsic(screen
->module
, "fetch_texel",
125 ret_type
, arg_types
, Elements(arg_types
));
127 LLVMAddGlobalMapping(screen
->engine
, fetch_texel
, lp_fetch_texel_soa
);
131 LLVMDumpModule(screen
->module
);
137 lp_jit_screen_cleanup(struct llvmpipe_screen
*screen
)
140 LLVMDisposeExecutionEngine(screen
->engine
);
143 LLVMDisposePassManager(screen
->pass
);
148 lp_jit_screen_init(struct llvmpipe_screen
*screen
)
155 /* For simulating less capable machines */
156 util_cpu_caps
.has_sse3
= 0;
157 util_cpu_caps
.has_sse4_1
= 0;
161 LLVMInitializeNativeTarget();
163 screen
->module
= LLVMModuleCreateWithName("llvmpipe");
165 screen
->provider
= LLVMCreateModuleProviderForExistingModule(screen
->module
);
167 if (LLVMCreateJITCompiler(&screen
->engine
, screen
->provider
, 1, &error
)) {
168 _debug_printf("%s\n", error
);
169 LLVMDisposeMessage(error
);
173 screen
->target
= LLVMGetExecutionEngineTargetData(screen
->engine
);
175 screen
->pass
= LLVMCreateFunctionPassManager(screen
->provider
);
176 LLVMAddTargetData(screen
->target
, screen
->pass
);
177 /* These are the passes currently listed in llvm-c/Transforms/Scalar.h,
178 * but there are more on SVN. */
179 /* TODO: Add more passes */
180 LLVMAddConstantPropagationPass(screen
->pass
);
181 if(util_cpu_caps
.has_sse4_1
) {
182 /* FIXME: There is a bug in this pass, whereby the combination of fptosi
183 * and sitofp (necessary for trunc/floor/ceil/round implementation)
184 * somehow becomes invalid code.
186 LLVMAddInstructionCombiningPass(screen
->pass
);
188 LLVMAddPromoteMemoryToRegisterPass(screen
->pass
);
189 LLVMAddGVNPass(screen
->pass
);
190 LLVMAddCFGSimplificationPass(screen
->pass
);
192 lp_jit_init_globals(screen
);