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/**************************************************************************
*
* Copyright 2009 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
/**
* @file
* Helper arithmetic functions.
*
* @author Jose Fonseca <jfonseca@vmware.com>
*/
#ifndef LP_BLD_ARIT_H
#define LP_BLD_ARIT_H
#include "gallivm/lp_bld.h"
struct lp_type;
struct lp_build_context;
struct gallivm_state;
/**
* Complement, i.e., 1 - a.
*/
LLVMValueRef
lp_build_comp(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_add(struct lp_build_context *bld,
LLVMValueRef a,
LLVMValueRef b);
LLVMValueRef
lp_build_horizontal_add(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_hadd_partial4(struct lp_build_context *bld,
LLVMValueRef vectors[],
unsigned num_vecs);
LLVMValueRef
lp_build_sub(struct lp_build_context *bld,
LLVMValueRef a,
LLVMValueRef b);
LLVMValueRef
lp_build_mul(struct lp_build_context *bld,
LLVMValueRef a,
LLVMValueRef b);
LLVMValueRef
lp_build_mul_imm(struct lp_build_context *bld,
LLVMValueRef a,
int b);
LLVMValueRef
lp_build_div(struct lp_build_context *bld,
LLVMValueRef a,
LLVMValueRef b);
/**
* Set when the weights for normalized are prescaled, that is, in range
* 0..2**n, as opposed to range 0..2**(n-1).
*/
#define LP_BLD_LERP_PRESCALED_WEIGHTS (1 << 0)
/**
* Used internally when using wide intermediates for normalized lerps.
*
* Do not use.
*/
#define LP_BLD_LERP_WIDE_NORMALIZED (1 << 1)
LLVMValueRef
lp_build_lerp(struct lp_build_context *bld,
LLVMValueRef x,
LLVMValueRef v0,
LLVMValueRef v1,
unsigned flags);
LLVMValueRef
lp_build_lerp_2d(struct lp_build_context *bld,
LLVMValueRef x,
LLVMValueRef y,
LLVMValueRef v00,
LLVMValueRef v01,
LLVMValueRef v10,
LLVMValueRef v11,
unsigned flags);
LLVMValueRef
lp_build_lerp_3d(struct lp_build_context *bld,
LLVMValueRef x,
LLVMValueRef y,
LLVMValueRef z,
LLVMValueRef v000,
LLVMValueRef v001,
LLVMValueRef v010,
LLVMValueRef v011,
LLVMValueRef v100,
LLVMValueRef v101,
LLVMValueRef v110,
LLVMValueRef v111,
unsigned flags);
/**
* Specifies floating point NaN behavior.
*/
enum gallivm_nan_behavior {
/* Results are undefined with NaN. Results in fastest code */
GALLIVM_NAN_BEHAVIOR_UNDEFINED,
/* If input is NaN, NaN is returned */
GALLIVM_NAN_RETURN_NAN,
/* If one of the inputs is NaN, the other operand is returned */
GALLIVM_NAN_RETURN_OTHER,
/* If one of the inputs is NaN, the other operand is returned,
* but we guarantee the second operand is not a NaN.
* In min/max it will be as fast as undefined with sse opcodes,
* and archs having native return_other can benefit too. */
GALLIVM_NAN_RETURN_OTHER_SECOND_NONNAN
};
LLVMValueRef
lp_build_min(struct lp_build_context *bld,
LLVMValueRef a,
LLVMValueRef b);
LLVMValueRef
lp_build_min_ext(struct lp_build_context *bld,
LLVMValueRef a,
LLVMValueRef b,
enum gallivm_nan_behavior nan_behavior);
LLVMValueRef
lp_build_max(struct lp_build_context *bld,
LLVMValueRef a,
LLVMValueRef b);
LLVMValueRef
lp_build_max_ext(struct lp_build_context *bld,
LLVMValueRef a,
LLVMValueRef b,
enum gallivm_nan_behavior nan_behavior);
LLVMValueRef
lp_build_clamp(struct lp_build_context *bld,
LLVMValueRef a,
LLVMValueRef min,
LLVMValueRef max);
LLVMValueRef
lp_build_clamp_zero_one_nanzero(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_abs(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_negate(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_sgn(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_set_sign(struct lp_build_context *bld,
LLVMValueRef a, LLVMValueRef sign);
LLVMValueRef
lp_build_int_to_float(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_round(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_floor(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_ceil(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_trunc(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_fract(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_fract_safe(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_ifloor(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_iceil(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_iround(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_itrunc(struct lp_build_context *bld,
LLVMValueRef a);
void
lp_build_ifloor_fract(struct lp_build_context *bld,
LLVMValueRef a,
LLVMValueRef *out_ipart,
LLVMValueRef *out_fpart);
void
lp_build_ifloor_fract_safe(struct lp_build_context *bld,
LLVMValueRef a,
LLVMValueRef *out_ipart,
LLVMValueRef *out_fpart);
LLVMValueRef
lp_build_sqrt(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_rcp(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_rsqrt(struct lp_build_context *bld,
LLVMValueRef a);
boolean
lp_build_fast_rsqrt_available(struct lp_type type);
LLVMValueRef
lp_build_fast_rsqrt(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_polynomial(struct lp_build_context *bld,
LLVMValueRef x,
const double *coeffs,
unsigned num_coeffs);
LLVMValueRef
lp_build_cos(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_sin(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_pow(struct lp_build_context *bld,
LLVMValueRef a,
LLVMValueRef b);
LLVMValueRef
lp_build_exp(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_log(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_log_safe(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_exp2(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_extract_exponent(struct lp_build_context *bld,
LLVMValueRef x,
int bias);
LLVMValueRef
lp_build_extract_mantissa(struct lp_build_context *bld,
LLVMValueRef x);
LLVMValueRef
lp_build_log2(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_log2_safe(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_fast_log2(struct lp_build_context *bld,
LLVMValueRef a);
LLVMValueRef
lp_build_ilog2(struct lp_build_context *bld,
LLVMValueRef x);
void
lp_build_log2_approx(struct lp_build_context *bld,
LLVMValueRef x,
LLVMValueRef *p_exp,
LLVMValueRef *p_floor_log2,
LLVMValueRef *p_log2,
boolean handle_nans);
LLVMValueRef
lp_build_mod(struct lp_build_context *bld,
LLVMValueRef x,
LLVMValueRef y);
LLVMValueRef
lp_build_isnan(struct lp_build_context *bld,
LLVMValueRef x);
LLVMValueRef
lp_build_isfinite(struct lp_build_context *bld,
LLVMValueRef x);
LLVMValueRef
lp_build_is_inf_or_nan(struct gallivm_state *gallivm,
const struct lp_type type,
LLVMValueRef x);
LLVMValueRef
lp_build_fpstate_get(struct gallivm_state *gallivm);
void
lp_build_fpstate_set_denorms_zero(struct gallivm_state *gallivm,
boolean zero);
void
lp_build_fpstate_set(struct gallivm_state *gallivm,
LLVMValueRef mxcsr);
#endif /* !LP_BLD_ARIT_H */
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