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"
46 lp_jit_init_globals(struct llvmpipe_screen
*screen
)
48 LLVMTypeRef texture_type
;
50 /* struct lp_jit_texture */
52 LLVMTypeRef elem_types
[4];
54 elem_types
[LP_JIT_TEXTURE_WIDTH
] = LLVMInt32Type();
55 elem_types
[LP_JIT_TEXTURE_HEIGHT
] = LLVMInt32Type();
56 elem_types
[LP_JIT_TEXTURE_STRIDE
] = LLVMInt32Type();
57 elem_types
[LP_JIT_TEXTURE_DATA
] = LLVMPointerType(LLVMInt8Type(), 0);
59 texture_type
= LLVMStructType(elem_types
, Elements(elem_types
), 0);
61 LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture
, width
,
62 screen
->target
, texture_type
,
63 LP_JIT_TEXTURE_WIDTH
);
64 LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture
, height
,
65 screen
->target
, texture_type
,
66 LP_JIT_TEXTURE_HEIGHT
);
67 LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture
, stride
,
68 screen
->target
, texture_type
,
69 LP_JIT_TEXTURE_STRIDE
);
70 LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture
, data
,
71 screen
->target
, texture_type
,
73 LP_CHECK_STRUCT_SIZE(struct lp_jit_texture
,
74 screen
->target
, texture_type
);
76 LLVMAddTypeName(screen
->module
, "texture", texture_type
);
79 /* struct lp_jit_context */
81 LLVMTypeRef elem_types
[5];
82 LLVMTypeRef context_type
;
84 elem_types
[0] = LLVMPointerType(LLVMFloatType(), 0); /* constants */
85 elem_types
[1] = LLVMPointerType(LLVMInt8Type(), 0); /* samplers */
86 elem_types
[2] = LLVMFloatType(); /* alpha_ref_value */
87 elem_types
[3] = LLVMPointerType(LLVMInt8Type(), 0); /* blend_color */
88 elem_types
[4] = LLVMArrayType(texture_type
, PIPE_MAX_SAMPLERS
); /* textures */
90 context_type
= LLVMStructType(elem_types
, Elements(elem_types
), 0);
92 LP_CHECK_MEMBER_OFFSET(struct lp_jit_context
, constants
,
93 screen
->target
, context_type
, 0);
94 LP_CHECK_MEMBER_OFFSET(struct lp_jit_context
, samplers
,
95 screen
->target
, context_type
, 1);
96 LP_CHECK_MEMBER_OFFSET(struct lp_jit_context
, alpha_ref_value
,
97 screen
->target
, context_type
, 2);
98 LP_CHECK_MEMBER_OFFSET(struct lp_jit_context
, blend_color
,
99 screen
->target
, context_type
, 3);
100 LP_CHECK_MEMBER_OFFSET(struct lp_jit_context
, textures
,
101 screen
->target
, context_type
,
102 LP_JIT_CONTEXT_TEXTURES_INDEX
);
103 LP_CHECK_STRUCT_SIZE(struct lp_jit_context
,
104 screen
->target
, context_type
);
106 LLVMAddTypeName(screen
->module
, "context", context_type
);
108 screen
->context_ptr_type
= LLVMPointerType(context_type
, 0);
114 LLVMTypeRef ret_type
;
115 LLVMTypeRef arg_types
[3];
116 LLVMValueRef fetch_texel
;
118 ret_type
= LLVMVoidType();
119 arg_types
[0] = LLVMPointerType(LLVMInt8Type(), 0); /* samplers */
120 arg_types
[1] = LLVMInt32Type(); /* unit */
121 arg_types
[2] = LLVMPointerType(LLVMVectorType(LLVMFloatType(), 4), 0); /* store */
123 fetch_texel
= lp_declare_intrinsic(screen
->module
, "fetch_texel",
124 ret_type
, arg_types
, Elements(arg_types
));
126 LLVMAddGlobalMapping(screen
->engine
, fetch_texel
, lp_fetch_texel_soa
);
130 LLVMDumpModule(screen
->module
);
136 lp_jit_screen_cleanup(struct llvmpipe_screen
*screen
)
139 LLVMDisposeExecutionEngine(screen
->engine
);
142 LLVMDisposePassManager(screen
->pass
);
147 lp_jit_screen_init(struct llvmpipe_screen
*screen
)
154 /* For simulating less capable machines */
155 util_cpu_caps
.has_sse3
= 0;
156 util_cpu_caps
.has_sse4_1
= 0;
159 #ifdef LLVM_NATIVE_ARCH
161 LLVMInitializeNativeTarget();
164 screen
->module
= LLVMModuleCreateWithName("llvmpipe");
166 screen
->provider
= LLVMCreateModuleProviderForExistingModule(screen
->module
);
168 if (LLVMCreateJITCompiler(&screen
->engine
, screen
->provider
, 1, &error
)) {
169 _debug_printf("%s\n", error
);
170 LLVMDisposeMessage(error
);
174 screen
->target
= LLVMGetExecutionEngineTargetData(screen
->engine
);
176 screen
->pass
= LLVMCreateFunctionPassManager(screen
->provider
);
177 LLVMAddTargetData(screen
->target
, screen
->pass
);
178 /* These are the passes currently listed in llvm-c/Transforms/Scalar.h,
179 * but there are more on SVN. */
180 /* TODO: Add more passes */
181 LLVMAddConstantPropagationPass(screen
->pass
);
182 if(util_cpu_caps
.has_sse4_1
) {
183 /* FIXME: There is a bug in this pass, whereby the combination of fptosi
184 * and sitofp (necessary for trunc/floor/ceil/round implementation)
185 * somehow becomes invalid code.
187 LLVMAddInstructionCombiningPass(screen
->pass
);
189 LLVMAddPromoteMemoryToRegisterPass(screen
->pass
);
190 LLVMAddGVNPass(screen
->pass
);
191 LLVMAddCFGSimplificationPass(screen
->pass
);
193 lp_jit_init_globals(screen
);