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/**************************************************************************
*
* Copyright 2010 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 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
* THE COPYRIGHT HOLDERS, AUTHORS 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.
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
**************************************************************************/
#include "util/u_debug.h"
#include "lp_bld_type.h"
#include "lp_bld_debug.h"
#include "lp_bld_const.h"
#include "lp_bld_bitarit.h"
/**
* Return (a | b)
*/
LLVMValueRef
lp_build_or(struct lp_build_context *bld, LLVMValueRef a, LLVMValueRef b)
{
LLVMBuilderRef builder = bld->gallivm->builder;
const struct lp_type type = bld->type;
LLVMValueRef res;
assert(lp_check_value(type, a));
assert(lp_check_value(type, b));
/* can't do bitwise ops on floating-point values */
if (type.floating) {
a = LLVMBuildBitCast(builder, a, bld->int_vec_type, "");
b = LLVMBuildBitCast(builder, b, bld->int_vec_type, "");
}
res = LLVMBuildOr(builder, a, b, "");
if (type.floating) {
res = LLVMBuildBitCast(builder, res, bld->vec_type, "");
}
return res;
}
/* bitwise XOR (a ^ b) */
LLVMValueRef
lp_build_xor(struct lp_build_context *bld, LLVMValueRef a, LLVMValueRef b)
{
LLVMBuilderRef builder = bld->gallivm->builder;
const struct lp_type type = bld->type;
LLVMValueRef res;
assert(lp_check_value(type, a));
assert(lp_check_value(type, b));
/* can't do bitwise ops on floating-point values */
if (type.floating) {
a = LLVMBuildBitCast(builder, a, bld->int_vec_type, "");
b = LLVMBuildBitCast(builder, b, bld->int_vec_type, "");
}
res = LLVMBuildXor(builder, a, b, "");
if (type.floating) {
res = LLVMBuildBitCast(builder, res, bld->vec_type, "");
}
return res;
}
/**
* Return (a & b)
*/
LLVMValueRef
lp_build_and(struct lp_build_context *bld, LLVMValueRef a, LLVMValueRef b)
{
LLVMBuilderRef builder = bld->gallivm->builder;
const struct lp_type type = bld->type;
LLVMValueRef res;
assert(lp_check_value(type, a));
assert(lp_check_value(type, b));
/* can't do bitwise ops on floating-point values */
if (type.floating) {
a = LLVMBuildBitCast(builder, a, bld->int_vec_type, "");
b = LLVMBuildBitCast(builder, b, bld->int_vec_type, "");
}
res = LLVMBuildAnd(builder, a, b, "");
if (type.floating) {
res = LLVMBuildBitCast(builder, res, bld->vec_type, "");
}
return res;
}
/**
* Return (a & ~b)
*/
LLVMValueRef
lp_build_andnot(struct lp_build_context *bld, LLVMValueRef a, LLVMValueRef b)
{
LLVMBuilderRef builder = bld->gallivm->builder;
const struct lp_type type = bld->type;
LLVMValueRef res;
assert(lp_check_value(type, a));
assert(lp_check_value(type, b));
/* can't do bitwise ops on floating-point values */
if (type.floating) {
a = LLVMBuildBitCast(builder, a, bld->int_vec_type, "");
b = LLVMBuildBitCast(builder, b, bld->int_vec_type, "");
}
res = LLVMBuildNot(builder, b, "");
res = LLVMBuildAnd(builder, a, res, "");
if (type.floating) {
res = LLVMBuildBitCast(builder, res, bld->vec_type, "");
}
return res;
}
/* bitwise NOT */
LLVMValueRef
lp_build_not(struct lp_build_context *bld, LLVMValueRef a)
{
LLVMBuilderRef builder = bld->gallivm->builder;
const struct lp_type type = bld->type;
LLVMValueRef res;
assert(lp_check_value(type, a));
if (type.floating) {
a = LLVMBuildBitCast(builder, a, bld->int_vec_type, "");
}
res = LLVMBuildNot(builder, a, "");
if (type.floating) {
res = LLVMBuildBitCast(builder, res, bld->vec_type, "");
}
return res;
}
/**
* Shift left.
* Result is undefined if the shift count is not smaller than the type width.
*/
LLVMValueRef
lp_build_shl(struct lp_build_context *bld, LLVMValueRef a, LLVMValueRef b)
{
LLVMBuilderRef builder = bld->gallivm->builder;
const struct lp_type type = bld->type;
LLVMValueRef res;
assert(!type.floating);
assert(lp_check_value(type, a));
assert(lp_check_value(type, b));
(void)type;
res = LLVMBuildShl(builder, a, b, "");
return res;
}
/**
* Shift right.
* Result is undefined if the shift count is not smaller than the type width.
*/
LLVMValueRef
lp_build_shr(struct lp_build_context *bld, LLVMValueRef a, LLVMValueRef b)
{
LLVMBuilderRef builder = bld->gallivm->builder;
const struct lp_type type = bld->type;
LLVMValueRef res;
assert(!type.floating);
assert(lp_check_value(type, a));
assert(lp_check_value(type, b));
if (type.sign) {
res = LLVMBuildAShr(builder, a, b, "");
} else {
res = LLVMBuildLShr(builder, a, b, "");
}
return res;
}
/**
* Shift left with immediate.
* The immediate shift count must be smaller than the type width.
*/
LLVMValueRef
lp_build_shl_imm(struct lp_build_context *bld, LLVMValueRef a, unsigned imm)
{
LLVMValueRef b = lp_build_const_int_vec(bld->gallivm, bld->type, imm);
assert(imm < bld->type.width);
return lp_build_shl(bld, a, b);
}
/**
* Shift right with immediate.
* The immediate shift count must be smaller than the type width.
*/
LLVMValueRef
lp_build_shr_imm(struct lp_build_context *bld, LLVMValueRef a, unsigned imm)
{
LLVMValueRef b = lp_build_const_int_vec(bld->gallivm, bld->type, imm);
assert(imm < bld->type.width);
return lp_build_shr(bld, a, b);
}
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