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 **************************************************************************/
30 * Helper arithmetic functions.
32 * @author Jose Fonseca <jfonseca@vmware.com>
40 #include "gallivm/lp_bld.h"
44 struct lp_build_context
;
49 * Complement, i.e., 1 - a.
52 lp_build_comp(struct lp_build_context
*bld
,
56 lp_build_add(struct lp_build_context
*bld
,
61 lp_build_horizontal_add(struct lp_build_context
*bld
,
65 lp_build_hadd_partial4(struct lp_build_context
*bld
,
66 LLVMValueRef vectors
[],
70 lp_build_sub(struct lp_build_context
*bld
,
75 lp_build_mul(struct lp_build_context
*bld
,
80 lp_build_mul_imm(struct lp_build_context
*bld
,
85 lp_build_div(struct lp_build_context
*bld
,
91 * Set when the weights for normalized are prescaled, that is, in range
92 * 0..2**n, as opposed to range 0..2**(n-1).
94 #define LP_BLD_LERP_PRESCALED_WEIGHTS (1 << 0)
97 * Used internally when using wide intermediates for normalized lerps.
101 #define LP_BLD_LERP_WIDE_NORMALIZED (1 << 1)
104 lp_build_lerp(struct lp_build_context
*bld
,
111 lp_build_lerp_2d(struct lp_build_context
*bld
,
121 lp_build_lerp_3d(struct lp_build_context
*bld
,
136 * Specifies floating point NaN behavior.
138 enum gallivm_nan_behavior
{
139 /* Results are undefined with NaN. Results in fastest code */
140 GALLIVM_NAN_BEHAVIOR_UNDEFINED
,
141 /* If one of the inputs is NaN, NaN is returned */
142 GALLIVM_NAN_RETURN_NAN
,
143 /* If one of the inputs is NaN, the other operand is returned */
144 GALLIVM_NAN_RETURN_OTHER
,
145 /* If one of the inputs is NaN, the other operand is returned,
146 * but we guarantee the second operand is not a NaN.
147 * In min/max it will be as fast as undefined with sse opcodes,
148 * and archs having native return_other can benefit too. */
149 GALLIVM_NAN_RETURN_OTHER_SECOND_NONNAN
,
150 /* If one of the inputs is NaN, NaN is returned,
151 * but we guarantee the first operand is not a NaN.
152 * In min/max it will be as fast as undefined with sse opcodes,
153 * and archs having native return_nan can benefit too. */
154 GALLIVM_NAN_RETURN_NAN_FIRST_NONNAN
,
159 lp_build_min(struct lp_build_context
*bld
,
164 lp_build_min_ext(struct lp_build_context
*bld
,
167 enum gallivm_nan_behavior nan_behavior
);
170 lp_build_max(struct lp_build_context
*bld
,
175 lp_build_max_ext(struct lp_build_context
*bld
,
178 enum gallivm_nan_behavior nan_behavior
);
181 lp_build_clamp(struct lp_build_context
*bld
,
187 lp_build_clamp_zero_one_nanzero(struct lp_build_context
*bld
,
191 lp_build_abs(struct lp_build_context
*bld
,
195 lp_build_negate(struct lp_build_context
*bld
,
199 lp_build_sgn(struct lp_build_context
*bld
,
203 lp_build_set_sign(struct lp_build_context
*bld
,
204 LLVMValueRef a
, LLVMValueRef sign
);
207 lp_build_int_to_float(struct lp_build_context
*bld
,
211 lp_build_round(struct lp_build_context
*bld
,
215 lp_build_floor(struct lp_build_context
*bld
,
219 lp_build_ceil(struct lp_build_context
*bld
,
223 lp_build_trunc(struct lp_build_context
*bld
,
227 lp_build_fract(struct lp_build_context
*bld
,
231 lp_build_fract_safe(struct lp_build_context
*bld
,
235 lp_build_ifloor(struct lp_build_context
*bld
,
238 lp_build_iceil(struct lp_build_context
*bld
,
242 lp_build_iround(struct lp_build_context
*bld
,
246 lp_build_itrunc(struct lp_build_context
*bld
,
250 lp_build_ifloor_fract(struct lp_build_context
*bld
,
252 LLVMValueRef
*out_ipart
,
253 LLVMValueRef
*out_fpart
);
256 lp_build_ifloor_fract_safe(struct lp_build_context
*bld
,
258 LLVMValueRef
*out_ipart
,
259 LLVMValueRef
*out_fpart
);
262 lp_build_sqrt(struct lp_build_context
*bld
,
266 lp_build_rcp(struct lp_build_context
*bld
,
270 lp_build_rsqrt(struct lp_build_context
*bld
,
274 lp_build_fast_rsqrt_available(struct lp_type type
);
277 lp_build_fast_rsqrt(struct lp_build_context
*bld
,
281 lp_build_polynomial(struct lp_build_context
*bld
,
283 const double *coeffs
,
284 unsigned num_coeffs
);
287 lp_build_cos(struct lp_build_context
*bld
,
291 lp_build_sin(struct lp_build_context
*bld
,
295 lp_build_pow(struct lp_build_context
*bld
,
300 lp_build_exp(struct lp_build_context
*bld
,
304 lp_build_log(struct lp_build_context
*bld
,
308 lp_build_log_safe(struct lp_build_context
*bld
,
312 lp_build_exp2(struct lp_build_context
*bld
,
316 lp_build_extract_exponent(struct lp_build_context
*bld
,
321 lp_build_extract_mantissa(struct lp_build_context
*bld
,
325 lp_build_log2(struct lp_build_context
*bld
,
329 lp_build_log2_safe(struct lp_build_context
*bld
,
333 lp_build_fast_log2(struct lp_build_context
*bld
,
337 lp_build_ilog2(struct lp_build_context
*bld
,
341 lp_build_log2_approx(struct lp_build_context
*bld
,
344 LLVMValueRef
*p_floor_log2
,
345 LLVMValueRef
*p_log2
,
346 boolean handle_nans
);
349 lp_build_mod(struct lp_build_context
*bld
,
354 lp_build_isnan(struct lp_build_context
*bld
,
358 lp_build_isfinite(struct lp_build_context
*bld
,
363 lp_build_is_inf_or_nan(struct gallivm_state
*gallivm
,
364 const struct lp_type type
,
369 lp_build_fpstate_get(struct gallivm_state
*gallivm
);
372 lp_build_fpstate_set_denorms_zero(struct gallivm_state
*gallivm
,
375 lp_build_fpstate_set(struct gallivm_state
*gallivm
,
378 #endif /* !LP_BLD_ARIT_H */