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 **************************************************************************/
29 #include "util/u_debug.h"
31 #include "lp_bld_type.h"
32 #include "lp_bld_const.h"
36 lp_build_elem_type(struct lp_type type
)
41 return LLVMFloatType();
44 return LLVMDoubleType();
48 return LLVMFloatType();
52 return LLVMIntType(type
.width
);
58 lp_build_vec_type(struct lp_type type
)
60 LLVMTypeRef elem_type
= lp_build_elem_type(type
);
64 return LLVMVectorType(elem_type
, type
.length
);
69 * This function is a mirror of lp_build_elem_type() above.
71 * XXX: I'm not sure if it wouldn't be easier/efficient to just recreate the
72 * type and check for identity.
75 lp_check_elem_type(struct lp_type type
, LLVMTypeRef elem_type
)
77 LLVMTypeKind elem_kind
;
83 elem_kind
= LLVMGetTypeKind(elem_type
);
88 if(elem_kind
!= LLVMFloatTypeKind
)
92 if(elem_kind
!= LLVMDoubleTypeKind
)
101 if(elem_kind
!= LLVMIntegerTypeKind
)
104 if(LLVMGetIntTypeWidth(elem_type
) != type
.width
)
113 lp_check_vec_type(struct lp_type type
, LLVMTypeRef vec_type
)
115 LLVMTypeRef elem_type
;
121 if (type
.length
== 1)
122 return lp_check_elem_type(type
, vec_type
);
124 if(LLVMGetTypeKind(vec_type
) != LLVMVectorTypeKind
)
127 if(LLVMGetVectorSize(vec_type
) != type
.length
)
130 elem_type
= LLVMGetElementType(vec_type
);
132 return lp_check_elem_type(type
, elem_type
);
137 lp_check_value(struct lp_type type
, LLVMValueRef val
)
139 LLVMTypeRef vec_type
;
145 vec_type
= LLVMTypeOf(val
);
147 return lp_check_vec_type(type
, vec_type
);
152 lp_build_int_elem_type(struct lp_type type
)
154 return LLVMIntType(type
.width
);
159 lp_build_int_vec_type(struct lp_type type
)
161 LLVMTypeRef elem_type
= lp_build_int_elem_type(type
);
162 if (type
.length
== 1)
165 return LLVMVectorType(elem_type
, type
.length
);
170 * Build int32[4] vector type
173 lp_build_int32_vec4_type(void)
178 memset(&t
, 0, sizeof(t
));
179 t
.floating
= FALSE
; /* floating point values */
180 t
.sign
= TRUE
; /* values are signed */
181 t
.norm
= FALSE
; /* values are not limited to [0,1] or [-1,1] */
182 t
.width
= 32; /* 32-bit int */
183 t
.length
= 4; /* 4 elements per vector */
185 type
= lp_build_int_elem_type(t
);
186 return LLVMVectorType(type
, t
.length
);
191 * Create unsigned integer type variation of given type.
194 lp_uint_type(struct lp_type type
)
196 struct lp_type res_type
;
198 memset(&res_type
, 0, sizeof res_type
);
199 res_type
.width
= type
.width
;
200 res_type
.length
= type
.length
;
207 * Create signed integer type variation of given type.
210 lp_int_type(struct lp_type type
)
212 struct lp_type res_type
;
214 memset(&res_type
, 0, sizeof res_type
);
215 res_type
.width
= type
.width
;
216 res_type
.length
= type
.length
;
224 * Return the type with twice the bit width (hence half the number of elements).
227 lp_wider_type(struct lp_type type
)
229 struct lp_type res_type
;
231 memcpy(&res_type
, &type
, sizeof res_type
);
233 res_type
.length
/= 2;
235 assert(res_type
.length
);
242 lp_build_context_init(struct lp_build_context
*bld
,
243 LLVMBuilderRef builder
,
246 bld
->builder
= builder
;
248 bld
->undef
= lp_build_undef(type
);
249 bld
->zero
= lp_build_zero(type
);
250 bld
->one
= lp_build_one(type
);