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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.
*
**************************************************************************/
#include "util/u_debug.h"
#include "lp_bld_type.h"
#include "lp_bld_const.h"
LLVMTypeRef
lp_build_elem_type(struct lp_type type)
{
if (type.floating) {
switch(type.width) {
case 32:
return LLVMFloatType();
break;
case 64:
return LLVMDoubleType();
break;
default:
assert(0);
return LLVMFloatType();
}
}
else {
return LLVMIntType(type.width);
}
}
LLVMTypeRef
lp_build_vec_type(struct lp_type type)
{
LLVMTypeRef elem_type = lp_build_elem_type(type);
return LLVMVectorType(elem_type, type.length);
}
/**
* This function is a mirror of lp_build_elem_type() above.
*
* XXX: I'm not sure if it wouldn't be easier/efficient to just recreate the
* type and check for identity.
*/
boolean
lp_check_elem_type(struct lp_type type, LLVMTypeRef elem_type)
{
LLVMTypeKind elem_kind;
assert(elem_type);
if(!elem_type)
return FALSE;
elem_kind = LLVMGetTypeKind(elem_type);
if (type.floating) {
switch(type.width) {
case 32:
if(elem_kind != LLVMFloatTypeKind)
return FALSE;
break;
case 64:
if(elem_kind != LLVMDoubleTypeKind)
return FALSE;
break;
default:
assert(0);
return FALSE;
}
}
else {
if(elem_kind != LLVMIntegerTypeKind)
return FALSE;
if(LLVMGetIntTypeWidth(elem_type) != type.width)
return FALSE;
}
return TRUE;
}
boolean
lp_check_vec_type(struct lp_type type, LLVMTypeRef vec_type)
{
LLVMTypeRef elem_type;
assert(vec_type);
if(!vec_type)
return FALSE;
if(LLVMGetTypeKind(vec_type) != LLVMVectorTypeKind)
return FALSE;
if(LLVMGetVectorSize(vec_type) != type.length)
return FALSE;
elem_type = LLVMGetElementType(vec_type);
return lp_check_elem_type(type, elem_type);
}
boolean
lp_check_value(struct lp_type type, LLVMValueRef val)
{
LLVMTypeRef vec_type;
assert(val);
if(!val)
return FALSE;
vec_type = LLVMTypeOf(val);
return lp_check_vec_type(type, vec_type);
}
LLVMTypeRef
lp_build_int_elem_type(struct lp_type type)
{
return LLVMIntType(type.width);
}
LLVMTypeRef
lp_build_int_vec_type(struct lp_type type)
{
LLVMTypeRef elem_type = lp_build_int_elem_type(type);
return LLVMVectorType(elem_type, type.length);
}
/**
* Build int32[4] vector type
*/
LLVMTypeRef
lp_build_int32_vec4_type()
{
struct lp_type t;
LLVMTypeRef type;
memset(&t, 0, sizeof(t));
t.floating = FALSE; /* floating point values */
t.sign = TRUE; /* values are signed */
t.norm = FALSE; /* values are not limited to [0,1] or [-1,1] */
t.width = 32; /* 32-bit int */
t.length = 4; /* 4 elements per vector */
type = lp_build_int_elem_type(t);
return LLVMVectorType(type, t.length);
}
struct lp_type
lp_int_type(struct lp_type type)
{
struct lp_type int_type;
memset(&int_type, 0, sizeof int_type);
int_type.width = type.width;
int_type.length = type.length;
return int_type;
}
void
lp_build_context_init(struct lp_build_context *bld,
LLVMBuilderRef builder,
struct lp_type type)
{
bld->builder = builder;
bld->type = type;
bld->undef = lp_build_undef(type);
bld->zero = lp_build_zero(type);
bld->one = lp_build_one(type);
}
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