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"
41 #include "lp_screen.h"
42 #include "lp_bld_intr.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
[8];
83 LLVMTypeRef context_type
;
85 elem_types
[0] = LLVMPointerType(LLVMFloatType(), 0); /* constants */
86 elem_types
[1] = LLVMFloatType(); /* alpha_ref_value */ elem_types
[2] = LLVMFloatType(); /* scissor_xmin */
87 elem_types
[3] = LLVMFloatType(); /* scissor_ymin */
88 elem_types
[4] = LLVMFloatType(); /* scissor_xmax */
89 elem_types
[5] = LLVMFloatType(); /* scissor_ymax */
90 elem_types
[6] = LLVMPointerType(LLVMInt8Type(), 0); /* blend_color */
91 elem_types
[7] = LLVMArrayType(texture_type
, PIPE_MAX_SAMPLERS
); /* textures */
93 context_type
= LLVMStructType(elem_types
, Elements(elem_types
), 0);
95 LP_CHECK_MEMBER_OFFSET(struct lp_jit_context
, constants
,
96 screen
->target
, context_type
, 0);
97 LP_CHECK_MEMBER_OFFSET(struct lp_jit_context
, alpha_ref_value
,
98 screen
->target
, context_type
, 1);
99 LP_CHECK_MEMBER_OFFSET(struct lp_jit_context
, scissor_xmin
,
100 screen
->target
, context_type
, 2);
101 LP_CHECK_MEMBER_OFFSET(struct lp_jit_context
, scissor_ymin
,
102 screen
->target
, context_type
, 3);
103 LP_CHECK_MEMBER_OFFSET(struct lp_jit_context
, scissor_xmax
,
104 screen
->target
, context_type
, 4);
105 LP_CHECK_MEMBER_OFFSET(struct lp_jit_context
, scissor_ymax
,
106 screen
->target
, context_type
, 5);
107 LP_CHECK_MEMBER_OFFSET(struct lp_jit_context
, blend_color
,
108 screen
->target
, context_type
, 6);
109 LP_CHECK_MEMBER_OFFSET(struct lp_jit_context
, textures
,
110 screen
->target
, context_type
,
111 LP_JIT_CONTEXT_TEXTURES_INDEX
);
112 LP_CHECK_STRUCT_SIZE(struct lp_jit_context
,
113 screen
->target
, context_type
);
115 LLVMAddTypeName(screen
->module
, "context", context_type
);
117 screen
->context_ptr_type
= LLVMPointerType(context_type
, 0);
121 LLVMDumpModule(screen
->module
);
127 lp_jit_screen_cleanup(struct llvmpipe_screen
*screen
)
130 LLVMDisposeExecutionEngine(screen
->engine
);
133 LLVMDisposePassManager(screen
->pass
);
138 lp_jit_screen_init(struct llvmpipe_screen
*screen
)
145 /* For simulating less capable machines */
146 util_cpu_caps
.has_sse3
= 0;
147 util_cpu_caps
.has_ssse3
= 0;
148 util_cpu_caps
.has_sse4_1
= 0;
152 LLVMInitializeNativeTarget();
154 screen
->module
= LLVMModuleCreateWithName("llvmpipe");
156 screen
->provider
= LLVMCreateModuleProviderForExistingModule(screen
->module
);
158 if (LLVMCreateJITCompiler(&screen
->engine
, screen
->provider
, 1, &error
)) {
159 _debug_printf("%s\n", error
);
160 LLVMDisposeMessage(error
);
164 screen
->target
= LLVMGetExecutionEngineTargetData(screen
->engine
);
166 screen
->pass
= LLVMCreateFunctionPassManager(screen
->provider
);
167 LLVMAddTargetData(screen
->target
, screen
->pass
);
169 if ((LP_DEBUG
& DEBUG_NO_LLVM_OPT
) == 0) {
170 /* These are the passes currently listed in llvm-c/Transforms/Scalar.h,
171 * but there are more on SVN. */
172 /* TODO: Add more passes */
173 LLVMAddConstantPropagationPass(screen
->pass
);
174 if(util_cpu_caps
.has_sse4_1
) {
175 /* FIXME: There is a bug in this pass, whereby the combination of fptosi
176 * and sitofp (necessary for trunc/floor/ceil/round implementation)
177 * somehow becomes invalid code.
179 LLVMAddInstructionCombiningPass(screen
->pass
);
181 LLVMAddPromoteMemoryToRegisterPass(screen
->pass
);
182 LLVMAddGVNPass(screen
->pass
);
183 LLVMAddCFGSimplificationPass(screen
->pass
);
186 lp_jit_init_globals(screen
);