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/* brig-seg-inst-handler.cc -- brig segment related instruction handling
Copyright (C) 2016-2018 Free Software Foundation, Inc.
Contributed by Pekka Jaaskelainen <pekka.jaaskelainen@parmance.com>
for General Processor Tech.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#include <sstream>
#include "brig-code-entry-handler.h"
#include "brig-util.h"
#include "convert.h"
#include "tree-pretty-print.h"
#include "errors.h"
#include "diagnostic-core.h"
brig_seg_inst_handler::brig_seg_inst_handler (brig_to_generic &parent)
: brig_code_entry_handler (parent)
{
}
size_t
brig_seg_inst_handler::operator () (const BrigBase *base)
{
const BrigInstBase &inst_base = *(const BrigInstBase *) base;
std::vector<tree> operands = build_operands (inst_base);
tree expr = NULL_TREE;
if (inst_base.opcode == BRIG_OPCODE_STOF)
{
const BrigInstSegCvt &inst = *(const BrigInstSegCvt *) base;
if (inst.segment == BRIG_SEGMENT_GROUP)
expr = build2 (PLUS_EXPR, size_type_node,
convert_to_integer (size_type_node,
m_parent.m_cf->m_group_base_arg),
convert_to_integer (size_type_node, operands[1]));
else if (inst.segment == BRIG_SEGMENT_PRIVATE
|| inst.segment == BRIG_SEGMENT_SPILL)
expr = build2 (PLUS_EXPR, size_type_node,
convert_to_integer (size_type_node,
m_parent.m_cf->m_private_base_arg),
convert_to_integer (size_type_node, operands[1]));
else
gcc_unreachable ();
if (!(inst.modifier & BRIG_SEG_CVT_NONULL))
{
/* Need to convert the null value. -1 is used for 32b segments,
and 0 for flat/global. */
tree cmp
= build2 (EQ_EXPR, uint32_type_node,
build_int_cstu (uint32_type_node, -1), operands[1]);
tree null_check = build3 (COND_EXPR, size_type_node, cmp,
build_int_cstu (size_type_node, 0), expr);
expr = null_check;
}
}
else if (inst_base.opcode == BRIG_OPCODE_FTOS)
{
const BrigInstSegCvt &inst = *(const BrigInstSegCvt *) base;
if (inst.segment == BRIG_SEGMENT_GROUP)
expr = build2 (MINUS_EXPR, size_type_node,
convert_to_integer (size_type_node,
m_parent.m_cf->m_group_base_arg),
convert_to_integer (size_type_node, operands[1]));
else if (inst.segment == BRIG_SEGMENT_PRIVATE)
expr = build2 (MINUS_EXPR, size_type_node,
convert_to_integer (size_type_node,
m_parent.m_cf->m_private_base_arg),
convert_to_integer (size_type_node, operands[1]));
else
gcc_unreachable ();
if (!(inst.modifier & BRIG_SEG_CVT_NONULL))
{
/* Need to convert the null value. -1 is used for 32b segments,
and 0 for flat/global. */
tree cmp = build2 (EQ_EXPR, size_type_node,
build_int_cstu (size_type_node, 0), operands[1]);
tree null_check
= build3 (COND_EXPR, size_type_node, cmp,
build_int_cstu (uint32_type_node, -1), expr);
expr = null_check;
}
}
else if (inst_base.opcode == BRIG_OPCODE_NULLPTR)
{
const BrigInstSeg &inst = *(const BrigInstSeg *) base;
if (inst.segment == BRIG_SEGMENT_GLOBAL
|| inst.segment == BRIG_SEGMENT_FLAT
|| inst.segment == BRIG_SEGMENT_READONLY)
expr = build_int_cstu (uint64_type_node, 0);
else
expr = build_int_cstu (uint32_type_node, -1);
}
else if (inst_base.opcode == BRIG_OPCODE_SEGMENTP)
{
const BrigInstSegCvt &inst = *(const BrigInstSegCvt *) base;
tree builtin = NULL_TREE;
switch (inst.segment)
{
case BRIG_SEGMENT_GLOBAL:
builtin = builtin_decl_explicit (BUILT_IN_HSAIL_SEGMENTP_GLOBAL);
break;
case BRIG_SEGMENT_GROUP:
builtin = builtin_decl_explicit (BUILT_IN_HSAIL_SEGMENTP_GROUP);
break;
case BRIG_SEGMENT_PRIVATE:
builtin = builtin_decl_explicit (BUILT_IN_HSAIL_SEGMENTP_PRIVATE);
break;
default:
gcc_unreachable ();
}
expr = call_builtin (builtin, 2,
uint32_type_node, uint64_type_node, operands[1],
ptr_type_node, m_parent.m_cf->m_context_arg);
}
else
gcc_unreachable ();
build_output_assignment (inst_base, operands[0], expr);
return base->byteCount;
}
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