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/*
* Copyright (C) 2019 Intel Corporation. All rights reserved.
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
*/
#include "aot_emit_parametric.h"
static bool
pop_value_from_wasm_stack(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx,
LLVMValueRef *p_value, bool is_32, uint8 *p_type)
{
AOTValue *aot_value;
uint8 type;
if (!func_ctx->block_stack.block_list_end) {
aot_set_last_error("WASM block stack underflow.");
return false;
}
if (!func_ctx->block_stack.block_list_end->value_stack.value_list_end) {
aot_set_last_error("WASM data stack underflow.");
return false;
}
aot_value =
aot_value_stack_pop(&func_ctx->block_stack.block_list_end->value_stack);
type = aot_value->type;
if (aot_value->type == VALUE_TYPE_I1) {
if (!(aot_value->value =
LLVMBuildZExt(comp_ctx->builder, aot_value->value, I32_TYPE,
"val_s_ext"))) {
aot_set_last_error("llvm build sign ext failed.");
return false;
}
type = aot_value->type = VALUE_TYPE_I32;
}
if (p_type != NULL) {
*p_type = aot_value->type;
}
if (p_value != NULL) {
*p_value = aot_value->value;
}
wasm_runtime_free(aot_value);
/* is_32: i32, f32, ref.func, ref.extern, v128 */
if (is_32
&& !(type == VALUE_TYPE_I32 || type == VALUE_TYPE_F32
|| type == VALUE_TYPE_FUNCREF || type == VALUE_TYPE_EXTERNREF
|| type == VALUE_TYPE_V128)) {
aot_set_last_error("invalid WASM stack data type.");
return false;
}
/* !is_32: i64, f64 */
if (!is_32 && !(type == VALUE_TYPE_I64 || type == VALUE_TYPE_F64)) {
aot_set_last_error("invalid WASM stack data type.");
return false;
}
return true;
}
bool
aot_compile_op_drop(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx,
bool is_drop_32)
{
if (!pop_value_from_wasm_stack(comp_ctx, func_ctx, NULL, is_drop_32, NULL))
return false;
return true;
}
bool
aot_compile_op_select(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx,
bool is_select_32)
{
LLVMValueRef val1, val2, cond, selected;
uint8 val1_type, val2_type;
POP_COND(cond);
if (!pop_value_from_wasm_stack(comp_ctx, func_ctx, &val2, is_select_32,
&val2_type)
|| !pop_value_from_wasm_stack(comp_ctx, func_ctx, &val1, is_select_32,
&val1_type))
return false;
if (val1_type != val2_type) {
aot_set_last_error("invalid stack values with different type");
return false;
}
if (!(selected =
LLVMBuildSelect(comp_ctx->builder, cond, val1, val2, "select"))) {
aot_set_last_error("llvm build select failed.");
return false;
}
PUSH(selected, val1_type);
return true;
fail:
return false;
}
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