Esempio n. 1
0
static bool
RenderLoad(WasmRenderContext& c, AstLoad& load)
{
    uint32_t defaultAlignLog2;
    switch (load.expr()) {
      case Expr::I32Load8S:
        if (!c.buffer.append("(i32.load8_s"))
            return false;
        defaultAlignLog2 = 0;
        break;
      case Expr::I64Load8S:
        if (!c.buffer.append("(i64.load8_s"))
            return false;
        defaultAlignLog2 = 0;
        break;
      case Expr::I32Load8U:
        if (!c.buffer.append("(i32.load8_u"))
            return false;
        defaultAlignLog2 = 0;
        break;
      case Expr::I64Load8U:
        if (!c.buffer.append("(i64.load8_u"))
            return false;
        defaultAlignLog2 = 0;
        break;
      case Expr::I32Load16S:
        if (!c.buffer.append("(i32.load16_s"))
            return false;
        defaultAlignLog2 = 1;
        break;
      case Expr::I64Load16S:
        if (!c.buffer.append("(i64.load16_s"))
            return false;
        defaultAlignLog2 = 1;
        break;
      case Expr::I32Load16U:
        if (!c.buffer.append("(i32.load16_u"))
            return false;
        defaultAlignLog2 = 1;
        break;
      case Expr::I64Load16U:
        if (!c.buffer.append("(i64.load16_u"))
            return false;
        defaultAlignLog2 = 1;
        break;
      case Expr::I64Load32S:
        if (!c.buffer.append("(i64.load32_s"))
            return false;
        defaultAlignLog2 = 2;
        break;
      case Expr::I64Load32U:
        if (!c.buffer.append("(i64.load32_u"))
            return false;
        defaultAlignLog2 = 2;
        break;
      case Expr::I32Load:
        if (!c.buffer.append("(i32.load"))
            return false;
        defaultAlignLog2 = 2;
        break;
      case Expr::I64Load:
        if (!c.buffer.append("(i64.load"))
            return false;
        defaultAlignLog2 = 3;
        break;
      case Expr::F32Load:
        if (!c.buffer.append("(f32.load"))
            return false;
        defaultAlignLog2 = 2;
        break;
      case Expr::F64Load:
        if (!c.buffer.append("(f64.load"))
            return false;
        defaultAlignLog2 = 3;
        break;
      default:
        return false;
    }


    if (!RenderLoadStoreAddress(c, load.address(), defaultAlignLog2))
        return false;

    return c.buffer.append(")");
}
static bool
RenderLoad(WasmRenderContext& c, AstLoad& load)
{
    if (!RenderLoadStoreBase(c, load.address()))
        return false;

    if (!RenderIndent(c))
        return false;

    MAP_AST_EXPR(c, load);
    uint32_t defaultAlignLog2;
    switch (load.op()) {
      case Op::I32Load8S:
        if (!c.buffer.append("i32.load8_s"))
            return false;
        defaultAlignLog2 = 0;
        break;
      case Op::I64Load8S:
        if (!c.buffer.append("i64.load8_s"))
            return false;
        defaultAlignLog2 = 0;
        break;
      case Op::I32Load8U:
        if (!c.buffer.append("i32.load8_u"))
            return false;
        defaultAlignLog2 = 0;
        break;
      case Op::I64Load8U:
        if (!c.buffer.append("i64.load8_u"))
            return false;
        defaultAlignLog2 = 0;
        break;
      case Op::I32Load16S:
        if (!c.buffer.append("i32.load16_s"))
            return false;
        defaultAlignLog2 = 1;
        break;
      case Op::I64Load16S:
        if (!c.buffer.append("i64.load16_s"))
            return false;
        defaultAlignLog2 = 1;
        break;
      case Op::I32Load16U:
        if (!c.buffer.append("i32.load16_u"))
            return false;
        defaultAlignLog2 = 1;
        break;
      case Op::I64Load16U:
        if (!c.buffer.append("i64.load16_u"))
            return false;
        defaultAlignLog2 = 1;
        break;
      case Op::I64Load32S:
        if (!c.buffer.append("i64.load32_s"))
            return false;
        defaultAlignLog2 = 2;
        break;
      case Op::I64Load32U:
        if (!c.buffer.append("i64.load32_u"))
            return false;
        defaultAlignLog2 = 2;
        break;
      case Op::I32Load:
        if (!c.buffer.append("i32.load"))
            return false;
        defaultAlignLog2 = 2;
        break;
      case Op::I64Load:
        if (!c.buffer.append("i64.load"))
            return false;
        defaultAlignLog2 = 3;
        break;
      case Op::F32Load:
        if (!c.buffer.append("f32.load"))
            return false;
        defaultAlignLog2 = 2;
        break;
      case Op::F64Load:
        if (!c.buffer.append("f64.load"))
            return false;
        defaultAlignLog2 = 3;
        break;
      default:
        return Fail(c, "unexpected load operator");
    }

    return RenderLoadStoreAddress(c, load.address(), defaultAlignLog2);
}