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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 functions for manipulation structures.
*
* @author Jose Fonseca <jfonseca@vmware.com>
*/
#include "util/u_debug.h"
#include "util/u_memory.h"
#include "lp_bld_const.h"
#include "lp_bld_debug.h"
#include "lp_bld_struct.h"
LLVMValueRef
lp_build_struct_get_ptr(struct gallivm_state *gallivm,
LLVMValueRef ptr,
unsigned member,
const char *name)
{
LLVMValueRef indices[2];
LLVMValueRef member_ptr;
assert(LLVMGetTypeKind(LLVMTypeOf(ptr)) == LLVMPointerTypeKind);
assert(LLVMGetTypeKind(LLVMGetElementType(LLVMTypeOf(ptr))) == LLVMStructTypeKind);
indices[0] = lp_build_const_int32(gallivm, 0);
indices[1] = lp_build_const_int32(gallivm, member);
member_ptr = LLVMBuildGEP(gallivm->builder, ptr, indices, Elements(indices), "");
lp_build_name(member_ptr, "%s.%s_ptr", LLVMGetValueName(ptr), name);
return member_ptr;
}
LLVMValueRef
lp_build_struct_get(struct gallivm_state *gallivm,
LLVMValueRef ptr,
unsigned member,
const char *name)
{
LLVMValueRef member_ptr;
LLVMValueRef res;
assert(LLVMGetTypeKind(LLVMTypeOf(ptr)) == LLVMPointerTypeKind);
assert(LLVMGetTypeKind(LLVMGetElementType(LLVMTypeOf(ptr))) == LLVMStructTypeKind);
member_ptr = lp_build_struct_get_ptr(gallivm, ptr, member, name);
res = LLVMBuildLoad(gallivm->builder, member_ptr, "");
lp_build_name(res, "%s.%s", LLVMGetValueName(ptr), name);
return res;
}
LLVMValueRef
lp_build_array_get_ptr(struct gallivm_state *gallivm,
LLVMValueRef ptr,
LLVMValueRef index)
{
LLVMValueRef indices[2];
LLVMValueRef element_ptr;
assert(LLVMGetTypeKind(LLVMTypeOf(ptr)) == LLVMPointerTypeKind);
assert(LLVMGetTypeKind(LLVMGetElementType(LLVMTypeOf(ptr))) == LLVMArrayTypeKind);
indices[0] = lp_build_const_int32(gallivm, 0);
indices[1] = index;
element_ptr = LLVMBuildGEP(gallivm->builder, ptr, indices, Elements(indices), "");
#ifdef DEBUG
lp_build_name(element_ptr, "&%s[%s]",
LLVMGetValueName(ptr), LLVMGetValueName(index));
#endif
return element_ptr;
}
LLVMValueRef
lp_build_array_get(struct gallivm_state *gallivm,
LLVMValueRef ptr,
LLVMValueRef index)
{
LLVMValueRef element_ptr;
LLVMValueRef res;
assert(LLVMGetTypeKind(LLVMTypeOf(ptr)) == LLVMPointerTypeKind);
assert(LLVMGetTypeKind(LLVMGetElementType(LLVMTypeOf(ptr))) == LLVMArrayTypeKind);
element_ptr = lp_build_array_get_ptr(gallivm, ptr, index);
res = LLVMBuildLoad(gallivm->builder, element_ptr, "");
#ifdef DEBUG
lp_build_name(res, "%s[%s]", LLVMGetValueName(ptr), LLVMGetValueName(index));
#endif
return res;
}
void
lp_build_array_set(struct gallivm_state *gallivm,
LLVMValueRef ptr,
LLVMValueRef index,
LLVMValueRef value)
{
LLVMValueRef element_ptr;
assert(LLVMGetTypeKind(LLVMTypeOf(ptr)) == LLVMPointerTypeKind);
assert(LLVMGetTypeKind(LLVMGetElementType(LLVMTypeOf(ptr))) == LLVMArrayTypeKind);
element_ptr = lp_build_array_get_ptr(gallivm, ptr, index);
LLVMBuildStore(gallivm->builder, value, element_ptr);
}
LLVMValueRef
lp_build_pointer_get(LLVMBuilderRef builder,
LLVMValueRef ptr,
LLVMValueRef index)
{
LLVMValueRef element_ptr;
LLVMValueRef res;
assert(LLVMGetTypeKind(LLVMTypeOf(ptr)) == LLVMPointerTypeKind);
element_ptr = LLVMBuildGEP(builder, ptr, &index, 1, "");
res = LLVMBuildLoad(builder, element_ptr, "");
#ifdef DEBUG
lp_build_name(res, "%s[%s]", LLVMGetValueName(ptr), LLVMGetValueName(index));
#endif
return res;
}
LLVMValueRef
lp_build_pointer_get_unaligned(LLVMBuilderRef builder,
LLVMValueRef ptr,
LLVMValueRef index,
unsigned alignment)
{
LLVMValueRef element_ptr;
LLVMValueRef res;
assert(LLVMGetTypeKind(LLVMTypeOf(ptr)) == LLVMPointerTypeKind);
element_ptr = LLVMBuildGEP(builder, ptr, &index, 1, "");
res = LLVMBuildLoad(builder, element_ptr, "");
LLVMSetAlignment(res, alignment);
#ifdef DEBUG
lp_build_name(res, "%s[%s]", LLVMGetValueName(ptr), LLVMGetValueName(index));
#endif
return res;
}
void
lp_build_pointer_set(LLVMBuilderRef builder,
LLVMValueRef ptr,
LLVMValueRef index,
LLVMValueRef value)
{
LLVMValueRef element_ptr;
element_ptr = LLVMBuildGEP(builder, ptr, &index, 1, "");
LLVMBuildStore(builder, value, element_ptr);
}
void
lp_build_pointer_set_unaligned(LLVMBuilderRef builder,
LLVMValueRef ptr,
LLVMValueRef index,
LLVMValueRef value,
unsigned alignment)
{
LLVMValueRef element_ptr;
LLVMValueRef instr;
element_ptr = LLVMBuildGEP(builder, ptr, &index, 1, "");
instr = LLVMBuildStore(builder, value, element_ptr);
LLVMSetAlignment(instr, alignment);
}
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